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Mufflers and Tailpipes

Mufflers and tailpipes are components of an exhaust system. The tailpipes guide the exhaust away from the engine and into the muffler. The muffler reduces the noise coming from the engine through the tailpipe.

2,711 Questions
Emissions and Exhaust Systems
Mufflers and Tailpipes

What can cause white smoke from the exhaust?

Here are the best answers compiled from s.com contributors:
  • It often means that you are burning antifreeze. You asked if it needs antifreeze, have you noticed any leaking out of the reservoir tank while you are running it? Sometimes when the head gasket goes it will produce a passage for the antifreeze to pass from the capillaries into the combustion chamber. It is easy to check if you have an air compressor. Remove one of the rear sparkplugs and the radiator cap. Fill the radiator and then push some air into the sparkplug hole (get a good seal in case a valve is open). Repeat with all the cylinders and watch for air bubbles coming up into the radiator. If bubbles come up or fluid is pumped out, the head gasket is blown and must be replaced. It is more likely to happen at the back of the engine because it is farthest away from the fan and therefore gets less cooling. Also check your oil for discoloration. If it is a brownish color it could mean your oil and antifreeze are mixing and has the potential to damage your bearings.
  • If the exhaust billows white smoke for a few seconds when first starting the engine after it has been sitting for a while, such as overnight, and then runs normally, it could mean that the rubber valve stem seals have perished - especially if the vehicle is a few years old and has done over 60/70,000 miles. Another clue is: does the exhaust smoke smell like fresh, rather than burnt oil.
  • After going nuts trying to figure out sporadic tailpipe smoke on my Nissan Maxima, with no other negative engine symptoms, I eventually stumbled upon a malfunctioning PCV valve. The ball-check wasn't fully seating, allowing small amounts of oil to sneak past and into the combustion chamber. A cheap and easy fix.
  • White smoke or semi white can be produced in several ways. One way is oil this is normally a whitish blue to blue smoke and has the apparent smell of oil being burned. Next could be antifreeze when it is being burned it has a sweet type of smell and tends to dissipate in the air rather quickly. Next is automatic transmission fluid which is normally found on automatic transmissions and its normally drawn into an engine thru a vacuum line via a defective transmission modulator valve or some other defective part. Transmission fluid is very apparent and billows out so bad that you can't see anything behind you. Last but not least another type of smoke that is not white but black is the presents of to much gas/fuel being burned in the engine. PS the one good thing about transmission fluid being burned is it is an excellent way to clean the carbon out of an engine.
  • Black smoke is burning oil. Blue smoke is usually transmission fluid due to a leaking modulator valve in the older auto transmission. White smoke is due to water getting in to a cylinder from a bad gasket, cracked block or a cracked head. cracked heads. Mine started misfiring, with new plugs. Smoke came out the exhaust. Result, low compression in the cracked head. When car was cold it ran fine. After it got hot, the crack in the head would open up, hence, sputtering. I've had to replace 3 heads. Everytime I've had to have this done, I had to buy a whole new head gasket.
  • After extensive research I came to the conclusion that TOO much oil is also a main culprit for white smoke out of the exaust.
  • I changed the PVC valve, the breather and the air filter and it's good as new.
  • There are a lot of incorrect answers here... but for the most part, you can hold true to these: Blue smoke is primarily from internal engine wear. If it's constant when the engine is on, then the rings etc are worn and need to be replaced. If it only is blue when the engine is cold or first started, the rings are worn but not gone completely. You get the oil seeping during the night and it burns off when the car is started in the morning. Black smoke is a fuel/air mixture suggestion problems with injection or carburation. Cause of black smoke is due to running rich in the fuel air mix. White smoke can and DOES come from coolant burn off in the oil due to a leaking or blown head gasket, cracked head etc. If you aren't sure or you don't know what you're talking about, don't advise. Wrong advice can be more damaging than the actual problem.
  • White smoke is caused by engine coolant/Antifreeze being processed in the combustion chamber(s) of the engine.....ie burning, melting, frying, whatever....Period....I'll explain further.... This is automotive chemistry 101....Oil of any automotive type burns blue.....too much fuel issues burn black not enough fuel issues burn grey on a cold day you may see what appears to be white smoke from the exhaust that will disappear after the vehicles engine has warmed up to it's normal operating temp.. This is a normal reaction called condensation... condensation is the result of a small amount of water/dew being drawn into the exhaust usually collecting in the muffler and/or the catalytic converter and is caused by our friend mother nature..... like when you see your breath on a cold day...
  • I am a highly experienced ASE certified automotive repair tech. I have over 16 years of diagnostics and repairs to my credit..I have made a very good living in the automotive business by being precise with my diagnostic procedures....I have worked for 3 of the largest rental vehicle companies in the country.... I have diagnosed and repaired an estimated 200 vehicles to date with the white smoke issue... every vehicle that i mentioned had engine coolant/antifreeze entering one of the combustion chambers in the engine... Most of these vehicles had a damaged head gasket(s).. the most common causes of this issue that i have detected over the years are due to improper maintenance of the engine cooling system, severe overheating of the engine, improper tightening of the cylinder head(s) during an engine overhaul,or some other type of repairs that required the head to be removed and also defects in manufacturing of the gasket or the engine... i have seen evidence of careless repair techs that have scratched or cut the surface of a replacement head gasket with either a tool or the cylinder head during the install process.. sometimes it will never cause an issue but it can... i am very careful when dealing with any gaskets but especially head gaskets due to the amount of work involved in replacing one on some vehicles.. bottom line, I'm not fond of doing the job twice so I'm careful the first time... I have seen improper cylinder head or engine block servicing techniques cause failure of the gasket(s) these types of failures are generally caused by improper cleaning of the gasket surface of the engine block and/or the gasket surface of the head.. i have also repaired or replaced cracked heads and in extreme scenarios i have replaced cracked blocks and severely overheated engines with a new or re-manufactured engine due to such severe damage to the internal engine components or block .. There are a mix of correct and incorrect answers to your concerns by the participants that have replied.. I can assure you that almost every well trained tech will answer your questions as i have.. I'm not saying I'm an automotive god, I am just proud of the priceless knowledge that i have acquired...FYI, I'm a graduate of Denver Automotive and Diesel College in Denver Colorado.... DADC is one of only two Automotive Technology colleges in the country with the intense hands-on and classroom teaching practices to properly train a truly, highly skilled automotive/diesel tech who can easily handle any diagnosis and proper repairs of yesteryears and today's automobile technology....
  • White smoke CAN be caused from oil....I have fast-road engined 1987 Golf Mk II. If I boot it hard on tight corners, roundabouts, etc, it can cause oil surge in the engine and some oil can 'slop' into a cylinder. The James Bond style smokescreen it produces can be very exciting for drivers behind me!
  • Lots of good answers; I just want to see if I can clarify from my experience. SMELL!! Good mechanics without great diagnostic tools learn to SMELL. "Burning" (yes, technically it's boiling, not burning) Antifreeze smells 100% different than burning OIL. Let your nose be your guide. The Antifreeze will have a sweet sort of smell--hey--kinda like antifreeze smells, and it will make your eyes tear up and your throat lungs will tell you to get out of that toxic fog right away. Also--the timing. Yes, when forming a good question, you need to give GOOD DETAILS. Does it ALWAYS burn white? Just at startup? Only when hot? Etc. DESCRIBE, DESCRIBE, DESCRIBE!!! A head gasket problem is ALWAYS there and it only gets worse under pressure/acceleration/load. It will go from a little cloud to it's own weather system when you stomp on the gas.
  • OVERFILLING THE OIL will produce this white burned smoke too. Yes, it will SMELL different. IT will also usually go away after some driving. CHECK THE DIPSTICK, it's obvious, but do it--do it right. Flat surface; cold engine. Pull--Wipe it off--put it in--now you are getting the real level. Oil burning will be at startup from worn valve rings/seals and during driving from overfilling at first a lot, then only at heavy acceleration/g forces when demand is high. Again--smell, check all your fluid levels (OIL, WATER, TRANS) of course, whatever is low is what you are BURINING (or for the one gent that gets particular, boiling). ALWAYS Start w the simplest thing or the cheapest. Did you just change the oil and it started--overfilling, etc. Yes, it won't hurt to check the PCV valve and tubing. Really, check all you can check.
  • My problem with white smoke was whenever I would be going down the road at high RPM and let off the trottle. Then it was like a smoke bomb went off. Bottom Line.......... My Vacuum Modulator went bad on my transmission whenever high vacuum was created it was sucking transmission fluid into my intake manifold and thus into my combustion chamber creating white smoke. Replaced the modulator for $12 and everything is right with the world
  • i had the exact problem with my Mazda down to a T. All we had to do was buy a bottle of engine sealant... it takes a full day to run thru so follow directions exactly. Now the car has no problems... full power is bacl no more "smoke bombs" and no more dying at strange times.
  • Steam or smoke is the question here. If its steam some considerations are what year is the vehicle newer catalytic converted cars emit steam and water from the exhaust and you should be cautious about the blown head gasket or cracked head syndrome, if you suspect a blown head gasket or cracked head go to a reputable shop that can confirm exhaust gasses in the coolant. You will notice a low coolant level and a peanut butter looking substance on the oil cap (possible traces of water and coolant in the oil but generally engine pressures will prevent this. Be prepared for the worst and hope for the best. If it is smoke a thick white smoke it could be transmission fluid being pulled up through a vacuum line to the intake manifold and being burned, this was quite common on older Ford and Chrysler vehicles that had a vacuum shift solenoid and an automatic transmission.
  • Has your car severely overheated recently? Does the smoke smell like antifreeze? If it does, you probably have a blown head gasket. The "smoke" in this case is actually steam from water leaking into the cylinders. Also check for yellow or white goo on the oil cap and dipstick, indicating water leaks to the oil.
  • Your symptoms are indicating a possible head gasket problem. You have water going into the combustion chamber and coming out the back tailpipe as steam. You may also have exhaust gas in the water which can also be checked by a mechanic. Be prepared for the expense of a head gasket or possible engine replacement.
  • If it is not happening all of the time at operating temperature (head gasket as mentioned before) and it occurs just at startup. It may be that due to heavy moisture in the air, dew, a heavy rain, will build up moisture in your exhaust system. At initial startup until the vehicle is warmed up and run for a bit, you may see thick white smoke.
  • I had an old engine that sucked oil through an intake valve when the engine went fast enough. If you burn enough oil it looks white. Especially in Michigan on a cold morning.
  • I had this problem with my '96 Ram after an overheat. A cracked head gasket was allowing antifreeze to get into the combustion chamber and creating all kinds of white 'sweet smelling' smoke.
  • White "smoke" in cold weather is just steam. When gasoline ignites it produces quite a bit of heat and expands to several times the original size, creating high pressure on the piston. That pressure causes the piston to move down, turning the crankshaft which makes the car go. When the fuel ignites it causes a sudden and violent chemical reaction between the the oxygen in the air and gasoline (which is a long chemical molecular chain of carbon and hydrogen) resulting in carbon dioxide and water vapor. As the water vapor cools in the exhaust pipe it starts to form small droplets that are visible in the form of steam vapor. That's the white smoke. Once the exhaust pipe warms up sufficiently, the exhaust leaving the pipe is still hot enough that the water vapor hasn't formed the droplets and dissipates quickly enough that you don't see the vapor. On the other hand, if it's light blue or blue-grey smoke and it doesn't stop when the exhaust pipe warms up, that's oil vapor and a sign of bad rings and/or valve stem seals.
  • white smoke is usually caused by condensation in the combustion chambers. This will usually dissipate once the car has warmed up. If it persists there could be difficulties with: Problem: Solution: Moisture in fuel Apply one cap full of Methylated spirits to fuel tank (This is quiter safe by the way, it dissipates water) Head gasket leak Replace head gasket, approx $500 AUS (other symptoms such high temperature will also be prevailent.) Failing these two suggestions, there is a slight chance of moisture in the oil sump. this is rare if the head gasket is ok. Simply check your oil level, if the oil looks milky, there's the problem. Also if it is milky, replace the head gasket.
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Mufflers and Tailpipes
Cars & Vehicles

Why are car mufflers loud?

Well, you only hear the loud ones. The purpose of a car muffler is to silence the car’s exhaust system—in fact, in the UK, they’re called silencers—and most are pretty successful. The loud ones are either faulty, modified to be loud, or are something called “performance mufflers,” which are designed to increase car performance and split the gap between, well, muffled and unmuffled.

So, your average muffler eliminates most of the exhaust noise by leading sound waves through sound-cancelling channels and chambers; modified and performance mufflers, on the other hand, let some of the cool sounds out.

If your muffler isn’t usually loud but starts to make noise, get that checked right away, as that could mean harmful fumes are leaking into your car.

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Mufflers and Tailpipes

What is exhaust tech system in automobile?

Exhaust tec means TORQUE EXPANSION CHAMBER

it increases power and mileage of automobile

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Mufflers and Tailpipes

How do you silence a loud exhaust noise?

Silencing a Loud ExhaustExhaust systems are very resistant to temporary fixes due to their heat and locale. If there is a hole in the exhaust have it patched or replaced, If the muffler no longer quiets the engine Replace it, If your header is leaking Get a new gasket and install it, Nothing else will work for more than a short time. An exhaust leak is an automatic fail on emissions testing, and carbon monoxide from the leak is dangerous. When replacing mufflers use the oem model they are quiet enough, aftermarket silencers cause excessive back pressure ( more than the muffler and Cat converter are already giving you) and will hurt performance and gas mileage.
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Emissions and Exhaust Systems
Head Gaskets and Valve Covers
Mufflers and Tailpipes

What causes a car to throw white smoke while driving it?

White smoke is coolant entering the combustion chamber. You have a blown head gasket. STOP driving this car immediately or you will destroy this engine. The head gasket must be replaced.

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Mufflers and Tailpipes

Why do tail pipes on pickup trucks come out to the side and not the rear?

shorter pipes mean less cost to manuf. = mo profit. And it looks sporty. My truck's tailpipe is bent 90 degrees with the tip extending another 12-14 inches out behind the right rear tire. The pipe would be the perfect length without that last bend and if it exited straight out of the vehicle's rear. Truck tailpipes exit the side because when towing a trailer rear facing pipes can cause exhaust fumes to enter the passenger compartment by hitting the trailer and "backflowing" up the sides of the truck and into the passenger area. Also, rear facing pipes increase the potential for harmful exhaust gases to build up in the trailer, especially bad if you are towing a camper.

189190191
Cars & Vehicles
Fuel and Engines
Mufflers and Tailpipes

What causes a car to backfire?

usually late ignition timing could cause this or an excessive amount of fuel in the exhaust system.

answer

backfire can be caused by choke not shutting off completely, also could have a bad distributor cap, bad spark plugs, bad ignition condensor, bad plug leads, or to much fuel getting to carburetor system

Consider getting yourself a service manual as it contains many troubleshooting for your car. Comes very handy sometimes.

Can also be caused by crossed spark plug wires meaning they are not connected in the proper order

Also

Listen to the Signs of the Car talking to you,

Is the Backfire coming from the Tailpipe area or the Engine Compartment area?

Signs of backfire can be caused Vacuum Leak, in and around the Intake Manifold Base Gasket areas, and the Carb. Base or Throttle Body Base, and in any of the many different

Vacuum hoses/lines depending on your make or model, "Use Caution with what you use to seek out the Vacuum leaks, as many aresol base products contain a petroleum base

which can cause severe flash fires,

( especially on and around HOT Engine Parts & Faulty or Loose Plug wires )

in Running Conditions.

Always RememberSAFETY FIRST,You want to drive it after you fix it,"NOT look a pictures of its chard remains,in a Hospital Burn Ward."

Be Safe Now / Cruise Longer

It could also be the contact set / points gap if this has recently been replaced/ adjusted.

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Mufflers and Tailpipes
Honda Civic LX
Fuel Economy and Mileage

What could cause a sudden drop in gas mileage?

If you mileage has dropped dramaticly in a short span of time there is one very probable answer. The thermostat to you engines cooling system may have puller through into the engine itself, or simply be in need of a replacement. With no thermostat the coolant is constantly circulating the engine. It is supposed to only do this at a higher temperature but if the engine is constantly cold it will be running a rich mixture of fuel, causeing the mileage to be extremley poor. This thermostat should not be an expensive fix and i would suggest looking into the situation as I have seen it before.

173174175
Emissions and Exhaust Systems
Mufflers and Tailpipes

Will bad rings cause blue smoke from exhaust?

Stuck or broken oil rings can cause blue smoke.

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Car Sounds
Mufflers and Tailpipes
Motorcycle Law
Noise Pollution

Scooter engine making loud noise?

If a scooter engine is louder than normal if could indicate one of several problems. You should check the oil level straight away, especially if it is a two stroke engine, as lack of oil, especially two stroke can cause major damage to the engine, and if the engine is running dry it would definitely be louder than normal, and could seize if you continue to use it.The most likely cause of the noise is the exhaust. If a hole has developed, due to rust then the scooter will be much louder than normal. You should visually check the exhaust for any damage. You should also check that the exhaust has not come loose at the manifold (where it joins the engine). If it loose you will just need to tighten it. If there is a hole it will need replacing.
You should also take to a scooter dealer or mechanic as soon as possible, as they will be able to find out what is causing the noise, and they will be able to repair it.

153154155
Emissions and Exhaust Systems
Head Gaskets and Valve Covers
Mufflers and Tailpipes

What would cause white smoke to come out of the tailpipe?

If you are having a lot of white smoke all the time the car runs then check for coolant mixing in with the oil,look for water in the oil when you check the oil or milky brown oil. This produces a white "steam" that is very thick to come out of the exhaust. If your engine temp. gauge is very high and over heats you probably have a blown head gasket. If it has a bluish tint look it may be burning oil. Indications might be how much oil is currently in the car i.e too much oil, or if there is a leak in the line you may be adding a bunch of oil over a short time. If it is only when you first start the car and the engine is cold, then it may be that your valve seals are bad and need replacing. Hope this might help or at least give you some ideas...

AnswerIt's coolant. headgasket, cracked or warped head, intake manifold or gasket, or cracked block are your sources. Take it to a care car service to have it checked AnswerAre you sure the smoke is white or is it a light blueish color start the car and have someone stand in a position to see the tail pipe and see if much water comes out with the smoke if it does and you have been running low on antifreeze i would say a head gasket if no water and not low on anti freeze look at worn valves or valve seals or worn rings good bet on these two items good luck AnswerBurning oil in the fuel would cause black smoke so it definitely has nothing to do with that. White smoke can be caused by water in the combustion camber or unburned fuel. If you've be having bad gas mileage you probably have a problem with your fuel or ignition system or timing. You can usually smell the fuel in your exaust when this happens. If you smell no fuel and you've had no change in fuel economy check for water like one of the previous posts said. AnswerTry the changing PCV, it work for me when white smoke(rock concert-like) would come out of the exhaust every time the car was turned on. That was the only time the white smoke would come out in my case. If it is a constant white smoke emitted from the exhaust, especially while driving, it could be something else. AnswerOne thing that I noticed, is that when valve seals get some years on them, a little bit of white smoke can emitted from the tail pipe when you first start it up or when you set at a stop light idling. But usually not that much smoke. Old valves could be causing you to run rich. AnswerSomehow water has or is being burned,check coolant level and temp if you have temp light put a guage in if coolant low there is your problem if not check egr valve and pcv valve also check oil level if high and milky there is high possibility that you have blown head gasket and or block may be cracked allowing oil to get into the oil pan. Answeri think it would be a blown head gasket or blown head
152153154
Emissions and Exhaust Systems
Head Gaskets and Valve Covers
Mufflers and Tailpipes

What does blue smoke from the exhaust mean?

Well unfortunately you can count on it meaning you'll have to get your wallet ready for a workout. Blue smoke could indicate a few different things I guess. However it is my own experiences that tell me what is happening is your motor oil is leaking past your piston rings and getting into the engine cylinder and mixing with your fuel and ultimately burning along with the gas. That leakage is getting compressed with the gasoline in the combustion chamber and the burned oil makes the blue smoke. Your car probably also doesn't have as much power as it used to and is probably running rather rough too. If it isn't yet it wont be long and it will evetually cause the oil to break down loseing its viscocity and not properly lubricateing the pistons. Because what is also happening is some of the gas is leaking past those rings too in the opposite direction and mixing with the oil in your crankcase and thinning it out. When this happens the engine will overheat from excessive friction and it will seize.

They used to do ring and valve jobs to fix the problem. But that is "old school" and we now live in a disposable society and most every shop around will recommend a newly rebuilt engine. With shop rates being as much as $125 an hour, the rebuilt motor is much more cost effective. I'm sorry to be the messenger of the bad news.

This means that you should just sell your car while you can, so that you don' t get stuck with it.

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Mufflers and Tailpipes
John Deere

How do you remove muffler on John Deere stx38?

I'm having the same issue. I'm trying to replace my front axle and I need to remove the muffler to get to the axle bolt. Please help.

I recently replaced the front axle on my STX38 so I took off the muffler as well. The muffler's heat shield needs to come off first, I think there's just two bolts holding that in place on the front of it. If I remember correctly, there were 4 bolts total securing the muffler. There are two bolts towards the front of the muffler that connect vertically to the body of the mower, these need to be removed. If you look at the very top of the muffler where it connects to the engine you'll see another two bolts that need to be removed. I had a tough time getting these two completely out since mine were a bit rusted but they did eventually come off. Once all these bolts are removed, I had to wiggle the muffler out of the bottom of the mower. For the people doing front axle replacement - once the muffler is removed you should have access to the bolt securing the axle.

135136137
Auto Parts and Repairs
Mufflers and Tailpipes
Chevy Silverado
Dodge Dakota

How can you make a single exhaust into a dual exhaust if there is not room to run pipes on both sides of the car?

If there is not enough room for dual exh. because of transmission cross member. Do as I did . Take out cross member weld thick piece of metal about 9" long where exh. will be then cut a notch in cross member for exhaust. IT works wonderful!

122123124
Emissions and Exhaust Systems
Mufflers and Tailpipes
Pollution

Why would gas come out of the exhaust pipe?

Don't want to doubt you, but I'd definitely check to make sure it feels lightly oily or even soak some a few drops into a paper towel and see if it ignited (careful of course). Assume it's not running rough / missing occasional firings, right?

This can also be caused by a defective fuel pressure regulator. (Ford Ranger)

117118119
Cars & Vehicles
American Cars
Mufflers and Tailpipes
Jeep Cherokee Laredo

How long should an exhaust pipe last?

With in 3-4 years, if you drive long periods of time you will get more time out of it because you will dry up the water in the pipe and it will not rust out as fast.

115116117
Mufflers and Tailpipes
Chevy Caprice Classic
Late Model 1979-New Ford Mustangs

How do you convert a 1988 Caprice Classic from single exhaust to a 'true' dual exhaust?

The only main problem you are going to have is there is no dual exhaust cross member available as far as I know, but a good custom pipe bender at a muffler shop can pancake the driverside pipe. Which means they square off the pipe where it won't hang below the crossmember's nonexistant hump. If you run dual after market converters it should pass emmissions.

If you want the look of duals, go to Big Al's muffler and break. They do cat-back (from the converter back) duals for $200. I don't think putting true duals on this car is worth the money as you need another converter not to mention the problems mentioned above.

Actually, you can get a dual humped cross-member out of an older model Caprice cop car, but they're hard to find.

No, that is not true. No 77-90 B-Body GMs had double hump crossmembers. Even the 9C1s had a single converter that split into two pipes.

One option is to take the cross member to a good welder and have him cut a section out, flip it over and re-weld it. Then use 1/4" angle iron to reinforce the cross member. Use it on both sides of the C M and extend the angle iron 6" in either direction from the out side edge of your modification.

115116117
Auto Parts and Repairs
Emissions and Exhaust Systems
Oil and Oil Filters
Mufflers and Tailpipes

What might cause white smoke from the exhaust after having a head gasket repair done?

Having a CRACKED head will make WHITE smoke IF U didn't have the head MAGNA-FLUXED. White smoke is steam. if it doesnt quit after awhile Id say that there is a leak in the head gasket between one of the coolent passages and a cylinder. this will let water into the cylinder which is turned into steam during combustion then exausted out the tail pipe. just to clear up something: Magnafluxing will not prevent cracks, it is a process used to detect them. This should be done by a machine shop. the new gasket is obviously faulty, or the head is cracked. I would guess that its the gasket. The head may not have been torqued properly. Follow a Chiltons or similar repair manual very closely when installing a head. If this is immediately after getting it fixed, you have to give it some time to work all that coolant out of the exhaust system. If it still is blowing steam after a few miles, then probably you have another blown headgasket or a cracked head that should have been addressed on the first head gasket replacement. Some shops have been known to not verify that the head isn't warped or cracked, and if it is, the new head gasket will blow immediately. If you had it at a shop the first time, take it back to them and have them fix it right this time - remember, though, not all mechanics are created equal and if they don't make things right you should take this to a better shop. A good shop will be embarassed by such a rookie mistake and take care of you. It is also possible that the head is warped (repair by machining) or that the intake gasket is or was also leaking or warped. Warpage typically only occurs if serious overheating occurred or sometimes if the wrong torque sequence was used during installation.

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Emissions and Exhaust Systems
Oil and Oil Filters
Mufflers and Tailpipes

Why would a car burn oil when it does not leak or blow blue smoke?

More details would be helpful. However if your car is using too much oil it has to be either going on the ground or thru the engine. Please try to clarify and give more details for instance how much oil is it using? Has the car sit for a long time? Is there any sign of oil on the engine itself? Is there any signs of oil underneath the car look well at the underside of the floor board? , EzForJesus

It could be that the piston rings have rubbed the side of the cylinder and caused wear ,you may have to have the engine rebuilt. You can't always see the smoke. It may only smoke when you are traveling at high speeds and disperses in the wind.

111112113
Emissions and Exhaust Systems
Head Gaskets and Valve Covers
Mufflers and Tailpipes

Can anything other than a blown head gasket cause white smoke to come from the exhaust?

Intake manifold or it's gasket, cracked head or block are other possible causes.White smoke may seem evident if you do short drives and moisture is built up in the exhaust from not getting hot enough.

The only common head gasket on the Taurus (FORD) is their 3.8 motor. It usually surfaces between 60,000 and 100,000 miles.

111112113
Emissions and Exhaust Systems
Head Gaskets and Valve Covers
Mufflers and Tailpipes
Chevy Blazer S-10

If liquid is coming out of your exhaust what is wrong?

Usually a blown head gasket, also there is some white smoke most of the time

110111112
Cars & Vehicles
Head Gaskets and Valve Covers
Mufflers and Tailpipes

Will driving with a blown head gasket damage the car?

Although rare, if it overheats the block could crack. If the coolant and oil mix (keep an eye on the oil condition), it could wipe out the bottom end of the engine. If the cylinder fills with coolant enough and the piston tries to compress the liquid, it could do damage to several parts including twisting the crankshaft. It would be smart to not drive it, but I guess life is all about risks and opportunity costs.

More Information:

I was driving home this afternoon when my car made a terrible noise and was loud. It sounded like it was coming from the engine. When I got home a neighbor( and a mechanic) drove it and said it was a blown gasket. can I drive it until it gets fixed?

I wouldn't drive it until it gets fixed. I might drive it TO get fixed. I am thinking of doing that myself. But it's very serious so don't keep driving it around (if you even can).

it's a nice reason to start hitch-hiking...

107108109
Emissions and Exhaust Systems
Head Gaskets and Valve Covers
Mufflers and Tailpipes

Why would white smoke come from the exhaust of a car when it was restarted after overheating?

This means that water is passing through your exhaust system which usually means that either a head gasket went bad or crack or warped head.

AnswerDid you repair the car first? Because if not your engine is probably hurtin' (blown head gasket or warped head). The most common leak in a blown head gasket is the anti-freeze.

White smoke is anti-freeze burning (or boiling) and you probably noticed you're losing anti-freeze from the reservoir. Also check your oil for overfilling and a greenish additive that YOU didn't put in. You can try STOP-LEAK but be aware this DOES NOT provide a permanent fix.

If you have the money have a professional look at your car and fix the head gasket and/ or the possibly warped head.

AnswerI had this problem with a 1975 Honda civic......turns out a cylinder burned a hole and the water mixed with the oil making white smoke come out of the exhaust.

Reason: Improper maintenance. I never got oil changes or added oil. or checked the water or checked for leaks.....Etc...

Repair: Change the cylinder. Very expensive $?

New Engine $500.00 rebuilt (already more than the car was worth) plus Labor$?

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Emissions and Exhaust Systems
Mufflers and Tailpipes
Ford Explorer XLT

Why when you push the accelerator would your car blow a lot of smoke?

White smoke = Coolant leak, head gasket is the likely culprit. Blue smoke = Engine burning oil. Black smoke = Engine running too rich, wasting fuel.

104105106
American Cars
Mufflers and Tailpipes
Chevy Silverado
Motorcycles

Why does your exhaust backfire?

Spark plug wires are installed incorrectly, or the enigne is out of time. Too much fule that is not being combusted in the engine. Fuel gets into the hot exhaust, then ignites.

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