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It might be overfueled but it also might be just that when you turn the key off the motor runs on a bit and puts fuel into the hot exhaust and it ignites it and makes it backfire.

If you are getting this condition without setting any fault codes, I would first check the EGR valve for leak by when no vacuum is applied. Air leaks in the hose between the mass airflow sensor and the throttle body could also be a cause. Check for a stopped up fuel filter. Ensure fuel pressure is at 45-50 psi without vacuum line connected to fuel pressure regulator, and 30-35 psi with the line connected. If it is not, the fuel pressure regulator may be the culprit. If the engine has many miles, a badly worn cam can cause backfire as well. This condition should set faults and render a check engine situation however.

A backfiring sound when letting off the gas could be caused by a rich air-fuel mixture igniting in the exhaust system. This could be due to an issue with the fuel injection system, a leaking exhaust valve, or a problem with the catalytic converter. It is important to have the vehicle inspected by a mechanic to diagnose and resolve the issue.

backfire is the best! rubbish! loosers L

Cars do backfire because of the mechanical failures.

The duration of Backfire - film - is 1.5 hours.

Pardon My Backfire was created on 1953-08-15.

Smiling Can Backfire was created on 2007-12-31.

Backfire at the Disco was created on 2007-04-09.

Backfire - film - was created on 1988-06-21.

Internal combustion engines can backfire. In order to prevent flames from the backfire causing a fire on board, an approved backfire flame arrestor must be attached to the air intake with a flame tight connection.

I think you are hearing pressure pops. Not a backfire.

Guns backfire when there is something blocking the hole in thee end of the barrel

Incorrect Timing Can Cause Backfire.

A rototiller may backfire when it is starting because the valves need to be adjusted. Another reason that it might backfire is because you have to replace the spark plug.

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

The cast of Backfire - 1920 includes: Ethel Ritchie

The cast of Backfire - 1939 includes: Eddie Acuff

Backfire - 2011 I was released on:

USA: 12 August 2011

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.

a backfire is caused by incorrect timing or not enough back pressure in the exhaust pipe

A backfire is an act of firing in the opposite direction to intended, for example, a gun being obstructed in the barrel.

Any magic can backfire, specially the magic done with bad (or unfair) intention.

Unburned fuel in the exhaust system causes the backfire from the exhaust pipe.

Pardon My Backfire - 1953 is rated/received certificates of:

USA:Approved

Stay calm.

what is making my Lincoln ls v8 backfire under the engine

The cast of Backfire - 1946 includes: Richard Conte John Ireland

Pardon My Backfire - 1953 was released on:

USA: 15 August 1953

There are a number of people that the states backfired on. A state's rights have the ability to backfire on literally anyone who understands them.

Its either too much fuel coming from the carbeuator and causing it to backfire or it could be spark plugs wired wrong. try to be more specific on where backfire is coming from. either out of the carbeuator or the tailpipes.

It depends

bang

No, Backfire only triggers when the Fire monster is Destroyed. Tributing a monster does not 'destroy' it.

Spark plug wires connected in wrong order?

Timimg chain jumped a tooth?

Bad intake valve?

Worn out camshaft lobe(s)?

Bad/wet distributor cap?

Faulty accelerator pump in carb? A LEAN MIXTURE WILL CAUSE INTAKE POPS ALSO A BIG VACUUM LEAK CYLINDER WILL PULL IN STRAIGHT AIR WITH NO FUEL MIXTuRE a dirty coil tower allowing spark to jump under load also a oil fouled spark plug or a closed gap or cracked plug check all wire end make sure non have corrosion including coil wire both ends make sure the metal end are clicking into dist cap terminals then slide rubber boot doen over cap make sur netal plug wire ends clic on spark plugs then slide boot over plug

Backfire is normally caused by engine out of time, or spark plug wires installed incorrectly.

A car can backfire and die if the spark plugs are bad. The car could also have a problem with the timing or the catalytic converter .

you must have air leaking into the exhaust system that will cause backfire when you decelerate raw gas goes into the system

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

Timing is off.

Yes

A backfire effect is the finding that, faced with evidence against their beliefs, people can reject evidence and believe something even more strongly.

The cast of Backfire - 1923 includes: Lige Conley James Donnelly Otto Fries Mack Swain

Standoff - 2006 Backfire 1-13 is rated/received certificates of:

USA:TV-14

Short Short Dramas - 1952 Backfire was released on:

USA: 16 June 1953

Dark Justice - 1991 Backfire - 3.9 was released on:

USA: 9 March 1993

Rescue 8 - 1958 Backfire - 2.18 was released on:

USA: 20 January 1960

Bronco - 1958 Backfire 1-15 was released on:

USA: 7 April 1959

Ironside - 1967 Backfire 4-11 was released on:

USA: 3 December 1970