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Backfires exhaust - Audi Cars & Trucks

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Either is sucking air into inlet manifold or has problem with spark plugs

Posted on Nov 22, 2013

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Why does my trx200sx backfire when I let off throttle it just started this


Dennis, Maybe try changing your plugs, unburnt fuel may be getting in exhaust because of weak plug.. Read the following links, very informative in telling causes of and some suggested fixes on backfiring. Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
http://www.rcramer.com/shop/backfire.html

Exhaust backfire popping when letting off throttle Motorcycle Forum

What causes bikes engine to backfire Intake Jetting Fuel Injection

May 18, 2016 | Cars & Trucks

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Have a 1991 Buick Lasabre won't start and backfires very very loud


backfire is a timing issue ,if its to far advanced it will back fire out intake ,if it backfires out exhaust its to far retarted ,you may have a bad timing gear,and or chain or belt, start by checking timing if you can get it running infact go over ignition system to look for other problems

Jul 08, 2015 | Buick Cars & Trucks

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Truck is backfiring and missfiring.


Have the misfire diagnosed and the backfiring will be fixed also. The backfiring is caused by the "over-rich" fuel mixture in the exhaust stream and is igniting within the exhaust. Fix the misfire (which will cause the rich condition) and the backfire will be gone.

Mar 24, 2014 | 1994 GMC Sierra

1 Answer

1997 Chevy Cheyenne K 1500, 305 vortec exhaust backfire, runs rich,no power


If #4 is the only cylinder low on compression, chances are your engine has not jumped timing. A broken or burnt exhaust valve sounds like the most likely candidate here. Quick repair will save you many dollars as the backfiring can eventually cause problems with the exhaust manifold and can cause catalytic converter and O2 sensor damage. You will need to pull the head off the engine and have it serviced. Many will tell you that if you do one head you should do both. It is good advice, especially since burnt valves are usually caused by pushrods that are loose due to wear of the valve guides.

Jan 07, 2014 | 1997 Chevrolet Blazer

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Backfires exhaust


If it is back firing through the exhaust, it is not running good because you are putting unburned fuel into the exhaust, bad spark plug or leaking exhaust valve, you need a compression test to start, you may as well change the spark plugs while they are out

Jan 04, 2014 | Cars & Trucks

1 Answer

Hi I'm new to this site , I have been asked to close Q I have asked already but don't know how on my iPhone to close then please help


There are two kinds of backfires, one is produced from the engine air intake and the other is produced from the tail pipe of the exhaust system. The cause for a backfire condition can vary depending on the malfunction of a particular system. Some backfires can be extreme enough to cause damage to related components. Anytime a backfire is observed immediately diagnose and repair as needed. If the engine is running rough it can produce a backfire. A backfire occurs when there is an imbalance in the air to fuel ratio required for your vehicle to operate properly. If the fuel mixture is too lean (not enough fuel) you may have a backfire in the intake manifold gasket, or too rich (too much fuel) you may get a backfire out of the exhaust system. It is important to observe the location of the backfire.

Oct 10, 2012 | Cars & Trucks

1 Answer

Single cylinder yanmar diesel engine on log splitter back fires out of exhuast & blows out black smoke


Engines runs for a couple of seconds then loudly backfires with a flash of flame out of the exhaust followed by a plume of black smoke. Then runs sort of ok for a couple of seconds then repeats the backfire again AmanStino Lightning Cable Apple MFi Certified 1M Nylon Braided Charging...

Apr 21, 2012 | Cars & Trucks

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Why does my car backfire


if it is a true backfire, from the exhaust, then this is unburnt fuel in the exhaust that is igniting from the heat in the exhaust

all this means is that you are running too rich which would be likely caused by leaking injectors

Apr 15, 2010 | 1999 Mercury Sable

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2003 dodge 2500 diesel backfires and destroys


Well, usually when a proper running vehicle backfires through the exhaust its caused by an excess in fuel building up in the pipe and igniting. Some newer diesle trucks will spray fuel into the exhaust to clean the emissions and reduce smoke coming out of the tail pipe. You could have a bent or sticking valve that is allowing extra fuel out into the exhaust, or when it went to clean the exhaust (If your model does that) the exhaust might not have been hot enough to ignite the fuel until you put a load on it causing the exhaust temp to jump igniting all the fuel in the tail pipe.

Jul 17, 2009 | 2001 Dodge Ram 2500 Truck

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