Question about 1992 Buick LeSabre

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Rough running, back-fireing, stalling in mid drive and while stopped. Got tune-up, new crank shaft sensor, repaired muffler, and cadillac converter, and gas filter......still running same.

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Check the firing spec for the vehicle and make sure you spark plug wiring is in the right order

Posted on Jul 01, 2009

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Check engine timing.

Posted on Jul 01, 2009

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1 Answer

I just want to know how to take the carb off and clean it


You have fuel injection --No Carb

Against Federal Law to remove the Exhaust Converter
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Replace all of the ignition coils. You will pay about $450 in parts. That will fix your problem. It fixed mine.

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Running rough ,no power back fires sometimes while exceleration. new plugs,plug wires ,cap,rotor,o2 sensor, fuel filter firing order is right ...


Check Alternator for bad diodes and A/C output,
you shouldn't have

Check fuel pump--with a scope, to see if that
is getting ready to fail

Exhaust Converter- most likely clogged,thus
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Timing Chain --loose ?
Rock crank back and forth
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3 Answers

Car shaking and sputtering. just changed o2 sensor and it did nothing. there is no pick up either


Exhaust couldbe stopped up. remove the O/2 and run it for a minute with the leak and see if the power is back like it used to be. If it is change the stopped up part ( cat converter, Muffler or bent pipe) and drive on. When running with a bad O/2 the convetor can melt and cloggup ( happen all at once)

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Have they checked your TPS sensor as this is the most common cause for rough idles and stalls...

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1 Answer

2001 VW JETTA SPUTTERING AND BACK FIREING WONT GO OVER 10MPH


First check all wires for any thing loose.
The muffler blowing up leads me to think the engine is so far out of time the PCM cant correct it.

REally you need to get it to a good mechanic.

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It is one of 2 things fuel pump or Crank Shaft Position Sensor. Best bet would be the Crank Shaft Sensor, and what that does is tell the computer where the crank is and when to fire the right plug at the right time

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1999 cavalier misfire/crank shaft code


sounds like you could of crosed your wires

Oct 15, 2008 | 1999 Chevrolet Cavalier

3 Answers

95 cadillac eldorado engine stalls rough idle check engine light is on


I have a 1994 Cadillac Eldorado and every time i start it the car has rough Idle and the Idle fluctuate's. I also can feel it in the gas pedal when the car is doing this I tried replacing the throttle body sensor but it still does it I also was told it was the Idle error sensor. So instead of spending the unecessary money again I thought I would go online and see if anyone could help me with this problem.

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