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Timing is out your distributor could be one eighty out try turning it one eighty.

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Q: What would cause backfire through at carbrator on a 1980 citation 4500?
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What causes a motor to backfire out of the intake manifold?

A leaking spark plug wire can cause a backfire out of the intake, but the most common cause is a burned intake valve. A burnt intake valve will allow leakage during the compression stroke back through the intake causing a popping backfire out of the intake manifold.


Why is your 92 F150 5.0 backfiring through carburetor?

A backfire is caused by many different things. Using the wrong grade fuel will cause a backfire, as the engine's compression ratio is usually too high and will detonate the Air/Fuel mixture, causing a backfire. It can also be caused by advanced or retarded timing. Advanced timing will cause a backfire through the intake, as the spark occurs too early and ignites the Air/Fuel mixture before the intake valve is closed. Retarded timing causes a backfire through the exhaust as the spark occurs after the exhaust valve has opened. Your problem seems to be advanced timing. A backfire is caused by many different things. Using the wrong grade fuel will cause a backfire, as the engine's compression ratio is usually too high and will detonate the Air/Fuel mixture, causing a backfire. It can also be caused by advanced or retarded timing. Advanced timing will cause a backfire through the intake, as the spark occurs too early and ignites the Air/Fuel mixture before the intake valve is closed. Retarded timing causes a backfire through the exhaust as the spark occurs after the exhaust valve has opened. Your problem seems to be advanced timing.


Can fuel filters and or fuel pump cause backfire?

No, backfire is usually caused by park plug wires that are installed incorrectly or an engine that is out of time. Fuel filter and pump will not cause backfire.


Will a bad timing chain make the engine backfire?

Incorrect Timing Can Cause Backfire.


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Having no catalytic converter installed is illegal and can cause a myriad of problems. Probably not a backfire though.


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What would cause 1986 454 to backfire through the exhaust while idling?

Plug wires installed incorrectly. Click the link.


Does carbin bildup on fuel injectors cause backfire?

Normally you do not get carbon buildup on injectors. They can get gummed a little, or blocked, but that should not cause backfire. Check timing.


Can a timing chain backfire and mess up starter on a 1998 surburban?

The chain can not backfire. If it is installed off time it can cause a backfire, which could conceivably damage a starter.


What would cause a 2000 Chevrolet C7500 running on propane to backfire and die?

There are several things that can cause your 2000 Chevrolet to backfire and die. The most common cause is a plugged catalytic converter.


Can bad fuel cause backfire?

Yes, bad fuel can cause backfire, because bad fuel is not good to use. People should always get reed of their bad fuel.


What would cause 85 vette to backfire through intake?

Worn camshaft, bent pushrod, burned intake valve, incorrect firing order,