Question about 1992 Oldsmobile Achieva

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Engine was running fine,i parked it ,when i restarted it the engine was skipping ,backfiring,won't idle sounds like timing is way off

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Ignition module,faulty or ignition switch contacts bad ,try turning key a bit farther on or clockwise ,not too far,might inergize starter check for weak spark at the plugs.

Posted on Sep 10, 2010

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.my yamaha r1 ,2001,misses,backfires,down on power,engine knocks,hardly idles,


Sounds like you might have skipped time. Check that your timing marks still line up. Then do a compression check.

Dec 22, 2015 | Cars & Trucks

1 Answer

Engine backfire


Sounds like the timing may be off. I would need to know what engine it has to help you diagnose this better.

Nov 20, 2013 | Ford Bronco Cars & Trucks

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What would make my 1999 Chevy Blazer 4x4 with a 4.3L Vortec engine suddenly start backfiring?


bad spark plugs, cam sensor or timing, or you could have clogged cat canverter

Oct 22, 2011 | 1999 Chevrolet Blazer

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Car had been running fine, backfired once and lost a little power momentarily. Parked 24 hours,started right up but backfired and died. Now starts easily but dies without intense pressure on gas pedal.


Sounds like it's fouled a spark plug this happens as the plug wires fail and the power goes to ground instead of firing the fuel. The timing belt could have skipped time but the engine may run smooly but have very little power.65158335.jpgThe plug wires will act like what you say too.340881376.jpgThe boots get electrcal holes in them and they fire to the head instead of the fuel mixture and then it fires sometimes and throws everything of and they run very badly or not at all.

Feb 24, 2011 | 1999 Ford Escort

1 Answer

In park the engine dies; only will run if given gas


It sounds like there is a problem with the Idle Air Control (IAC) valve. Its job is to open and let air into the manifold when the throttle is closed at idle. If it does not open, the engine dies at idle. The IAC is mounted on the throttle body. Possibly the valve is clogged or stuck, in which case it could be ok again if it is removed and cleaned. Or it is broken, and needs to be replaced. Or, there is a problem with its electrical connection, that needs to be traced. Good luck, let me know if you have any questions.

Mar 30, 2010 | 1993 Chevrolet Lumina

1 Answer

1989 park avenue would run about 60 miles then die, could restart immediately, but would go about 4 to 10 miles then die again, could restart immediately but would repeat the 4 to 10 mile thing. A couple...


check harmonic balancer for slop back and forth,,,,these 3.8's have a crank posision sensor behind the balancer,that run off of the balancer,,,gthe rubber wears out and they start to flop around and timing gets messed up.../they cost around 100 bucks for a aftermarket,and if thats the problem,do yourself a favor and replace CPS while tour at it....good luck...Lee

Jan 10, 2009 | 1989 Buick Park Avenue

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