Question about 1992 GMC Sierra K1500

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The truck will start. but dies when taking foot off pedal. it has to accerlated to keep runing. but as soon as u go down on the accerlation it dies off.

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Check out the voltage to the tps sensor

Posted on Jul 28, 2010


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Intermintent pinging on accerlation

Intermintent pinging Bruce, Try a couple tanks of better grade fuel (premium) to see if pinging reduces/ or goes away.

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Gas pedal hard to push

I know this might seem silly but seen it a number of times in the shop, make sure nothing like double floor matts or newspaper is causing your stiff gas pedal. Open hood with engine off and manually play with accerlator and see if it binds. if you have one person in seat and another under hood that's under way of checking if its a mechanical or electrical issue

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Will it blow if the engine is not running and you push the gas pedal to the floor ?
Could be something in the engine wiring harness or the throttle body.

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If the engine is stalling with your foot off the pedel then look at the iac motor,make sure it is plugged in,also check for stored trouble code,then erase them,if you had the battery unhooked when doing water pump then this is normal,just keep the rpm up for a few min to let ecm relearn idle speed, when the battery is unhooked all the learned info in ecm is lost, i.e idle,shift points etc...

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Engine will start but dies as soon as I take my foot off the gas

just keep reving it and runing the engin it will get to wear it will idle soon its just cloged up some times geting it hot or reving the hell outa it will soon help

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I don't know how many miles you have or the condition of the car, but it sounds like it might just be your TPS (throttle position sensor) might be bad as well as the throttle could be sticking open and just need to be cleaned. Find where the throttle cable goes to the intake and just take some spray injector cleaner or something of that nature to clean the throttle plate. Start with the latter first.

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