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Emissions and Exhaust Systems
Internal combustion engines have byproducts called emissions. These byproducts are either particulates or gaseous chemicals. Emissions travel from the engine via an exhaust system, which is a system of pipes that leads the emission away from the combustion source.
1,423 Questions
How do you reset service engine soon light Mitsubishi diamante 99?
Disconnect the Negative(black) terminal from the battery for a minute then reconnetc. If this does not work, go to Autozone/Checkers/Pep Boys and plug in their code reader and clear the codes.
Maybe its gas comming into the exgust, then when your up to higher speed/load this gas is being burned. Other then that check your head gasket.
White smoke is an indication that you are burning antifreeze. Usually a cracked head or blown head gasket.
How are exhaust stacks attached to the exhaust ports of a cylinder aircraft?
On Lycoming engines the exhaust pipes have a welded steel flange that seats over a copper gasket with 2 studbolts directly onto the outlet port of the engine.
What does blue smoke at startup mean?
Usually a puff of blue at start up means poor valve seals or loose valve guides.
Other symptoms depending on how bad it is are blue smoke under engine braking, like slowing from highway speed and when it gets bad Smoke at idle but not with the engine under load.
Trouble code P0420 means: Catalyst Efficiency Below Normal (Bank 1)
form_title=Engine Block Repair form_header=A cracked engine block can be devastating. Let us help you find an affordable auto technician to service your vehicle. Have you checked your oil recently?= () Yes () No Have you noticed your motor knocking?= () Yes () No Is there white smoke coming from your exhaust?= () Yes () No
Hole in exhaust before catalytic converter?
The exhaust pipe will need to be replaced, or, you can buy a quick-fix patch at your local auto parts store as a temporary fix. It's a treated "ribbon" about 2 or 3 inches wide that you can wrap around the exhaust pipe to cover the hole. The heat of the exhaust activates the chemicals in the "ribbon" to make it adherent. I believe the product is called a muffler repair kit.
What is an evaporative emission system leak?
It is a vapor leak in the fuel system. Starting in 1996 vehicles check for leaks down to .020 inch.
What could cause blue exhaust in an auto?
A customer's auto is producing blue exhaust. What could cause this
Why does water come out of A tailpipe when you crank it up?
when the engine and exhaust pipes are cold, the hot exhaust will cool and moisture will condense on the exhaust pipe and drip out. Remember basic chemestry. Automotive fuels are hydrocarbons. The hydrogen molecules in the fuel turns to very hot water vapor when the fuel burns. What you are experiencing is very normal.
What does check emission light mean in my Nissan?
The computor has detected a problem, it will have to be scanned to determine what the problem is.
Where do you find emission control diagrams?
my diagram is a sticker right inside the engine compartment (ford) autozone has most of the diagrams on their site, too.
Why is your Yamaha rsx100 spewing loads of smoke from the exhaust?
possibly (1) crank seals leaking oil into combustion chamber -need engine rebuild to fix :( (2) oil pump (or premix if you ditched the pump) giving too much oil- adjust pump or reduce ratio of mix. could be very bad carb setting, flooding or choke stuck on, or filthy exhaust if it never gets a long run to heat up properly. Get a Haynes manual and it will tell you all this stuff, and how to fix it... good luck
Fumes which are a byproduct of combustion within the engine block, most commonly Carbon Dioxide and Carbon Monoxide.
Can a car with white smoke coming from muffler pass an emisssions test?
NO!! White smoke indicates the burning of oil. The law says, "ANY smoke coming from the engine during any part of the test is grounds for failure." I've been an Emissions guy in Denver for 23 years.
White smoke is oil. Black is gas (too rich).
Black smoke can get pricey. White smoke is always pricey!!
blue exhaust is usually due to excessive lubricating oil consumption and its emission indicates a very poor condition of the engine, such as worn out piston rings or valve guides, etc beside, as it possible to completely prevent the emission of blue smoke...
What problems can a bad egr valve cause?
my mechanic told me it is hard on your brakes. I suppose from having to constantly brake to slow the car down. It's like having cruise control on all the time.
What does Emissions Control Vent Malfunction Mean?
Most likely, this is taken out of context. You may mean Evaporative Emissions Control Vent which refers to the function of equalizing the pressure within the fuel tank and atmospheric air.
; it is normally caused by a loose gas cap
Check engine light wont go off?
The light is one because there is a problem with the emissions system. Once the problem is corrected the service tech will reset the light.
When was the first automotive exhaust invented?
This must be a trick question, but, I will guess: the same time the first internal combustion engine was fired up? Is that what your looking for?!
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.
What is the cause of white smoke from exhaust after each takeoff?
you probably have a bad gasket on one of the heads or a cracked head like in a water jacket next to a piston wall. check the compression on each cylinder and they should all be with in a 15 lbs range or closer that will at least tell you which cylinder is leaking
Why does your Nissan Stanza Blow GreyishBlack smoke out of the exhaust pipe?
Sounds to me like gas and or oil smoke. When checking the oil is there a noticable amount gone? If in your area there is a emissions requirement that can tell you a lot about how much actual gas is NOT being burned inside the engine. I would look at major tune up, oil change, and o/2 sensor. Good Luck.
Answer # 2Greyish black smoke is a sign of worn out piston ringsWhite smoke is a sign of leaky/busted head gasket
Blueish grey smoke is a sign of bad PVC valve, O2 sensor or both
