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timing is off. this is correct, but to find out WHY it is all of a sudden backfiring you gotta start from the beginning.... I am posting this because in my painstaking search for a solution to my car troubles, all i found were half answered questions or people not posting after a repair was made so we can all know what worked and what didn't.. HERE IS WHAT I FOUND..... I've had a problem with my 1992 Lumina 3.1 ever since around Thanksgiving when the temp outside dropped below 50 degrees. before that, the car would start with absolutely no problems. since then, when i crank the motor, the engine feels like it's going to catch but doesn't- just sputters out and backfires through the intake.. after reading so many threads and "solutions" on the 'net...i checked a few things... found that my fuel pressure regulator was leaking fuel through the vacuum port.. also read that a leaky regulator would cause a no start like mine especially in cold weather because without the proper amount of fuel and spark, you wont get the car running. OK!! SO!! after spending 650 dollars to replace the fuel pressure regulator (on the older model Luminas its located under the intake plenum, so the whole thing needs to be removed), AND a new starter since I overcranked mine 1 too many times, the car started right up at the shop.. NEXT DAY THOUGH, cold as hell morning, no start and STILL backfiring through intake.. the mechanic at the shop insisted he take apart my intake again to check voltage on all of my injectors, but thankfully i hadn't enough cash after the 650 wiped me out... REMEMBER...my car ONLY BACKFIRED upon ignition... after i got the motor running, my car ran like a dream.. so in reading hundreds of other posts i determined that it was either gonna be my ignition control module or crank sensor, or a combo of both.. i got crafty this morning and went out to the driveway with an extension cord and my sister's hair dryer... i put the hair dryer to the ICM and the coils that mount to it for 5-10 mins.. low and behold, my car started right up without hesitation or backfire. i know this post has been long, but like i said, I'm only doing it so that maybe the next poor guy having similar problems will come across it and get closure and hopefully a solution. my icm needs replacing soon as i get paid
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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.
What make a1990 corvette backfire through the intake?
A failing cylinder
What causes an engine to backfire through intake coming off idle?
Out of time.
Why does your car backfire while driving it?
Backfire is an explosion produced by a running internal combustion engine that occurs in the intake or exhaust system rather than inside the combustion chamber,
S10 blazer popping?
what year? popping like a backfire through the intake? check the timing if it has a distributor.
What would cause 85 vette to backfire through intake?
Worn camshaft, bent pushrod, burned intake valve, incorrect firing order,
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.
Why does your 2002 3.3 dodge grand caravan backfire through the intake?
Most likely is one plug malfunctioning or a dirty injector.
What is causing your 1979 Datsun 280zx to backfire through the intake and the rpms to hang in-between gears?
burnt valve. do a compression test.
What is the difference in automobile backfires?
you did't specify if it is carburetor or fuel injection.if the backfire is out the exhaust or through the intake. if out the exaust it is usually ignition and if it is through the intake/carb or the plenum/fuel injected it usually is a lean or fuel starvation...
Why does your 2000 neon backfire from the intake?
idol air throttle sensor
Why does a car backfire and die?
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 .
