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.
Exhaust tec means TORQUE EXPANSION CHAMBER
it increases power and mileage of automobile
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.
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.
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
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.
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.
Stuck or broken oil rings can cause blue smoke.
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.
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
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.
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.
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!
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)
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.
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.
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.
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.
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.
Usually a blown head gasket, also there is some white smoke most of the time
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.
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...
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 $500.00 rebuilt (already more than the car was worth) plus Labor$?
White smoke = Coolant leak, head gasket is the likely culprit. Blue smoke = Engine burning oil. Black smoke = Engine running too rich, wasting fuel.
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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