Question about 1990 GMC Sierra

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Dies when ideling or surges - 1990 GMC Sierra

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  • gpzbrooks Aug 02, 2009

    my 1990 GMC is fuel injected

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Change diaphragms in carbs

Posted on Aug 02, 2009

  • Daniel Bakewell Dec 29, 2009

    accelerator switch sticky or air meter problem, so many other things on electronic systems, it may need ecu diagnostic as it could be anything including lambda sensors

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My 94 mustang, with a 3.8, keeps dieing at a stop, or just coasting while off the throttle. It will also die while ideling in gear. However it does start rt back up again. Any tips please?


90% of poor running' poor idling, surging problems are caused by a dirty throttle body. When was the last time you cleaned it? Best procedure is to remove it from the intake manifold to clean if off the car. At the same time clean as much ditr from the intake manifold as well and the IAC and TPS sensors. Install a new gasket and replace.

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I have A 97iDodge1500 4x4 with a 5.9 and it just surges when ideling from 100 rpm to 1300 until it dies. Would the sending unit do that


COULD BE THE AIR IDLE MOTOR, IF IT DOESN'T HOLD IDLE, ANYTHING ELSE MAY NEED TO LOOK AT DATA, LIKE TEMPERATURE, O2 FUNCTION OR FUEL PRESSURE, THEY ALSO HAVE A DISTRIBUTOR PICK UP THAT GOES BAD ON THIS MODEL. BUT YOU NEED CODES AND DATA TO REPAIR THE IDLE, AS A 1999 (DEKOTA ) IS VERY SLOW ON READING DATA.

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My Opel Corsa 1.4 (2008) has an inconsistant idling, the engine seems to be surging but does not die when idling. This is a 2008 model with ecotec engine.


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My 98cavalier idels rough and it has a surg will u are driving and about dies. ( new fuel pump.plugs .wires.filter


I worked on a Z24 model that drove me crazy - turned out to be a cracked intake manifold. Something to consider, especially if it only screws up while hot.

Jul 08, 2011 | 1998 Chevrolet Cavalier

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Will the idel controll valve make the car idel high and make it die when stoped


Yes its very possible that the IAC valve is bad.Here is something you can try.Take the connector off of the IAC if this remedies the situation then replace the IAC.If the idle is surging then I would look at the throttle position sensor.And also remember that if a sensor was bad you would get a check engine light that should come on.You might also have a vacuum hose that came off.

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1991 honda accord- coolent leaked out from water pump area but water pump seems fine-also when car is ideling car would have little power surges and come close to dying - any ideas


for the water pump leaking, get some engine coolant stop leak from any automotive store, it usually contains pump seal lubricant also. the power surges are a separate problem from your pump leak.

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1 Answer

Erratic idle surging at idel and in gear 91 honda accord LX


Sounds like an idle air control valve issue. these can stick open and cause surging. That would be my first step.

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its the idle air contol motor. its located on the bottom of the throttle body.


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