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www.fullsizechevy.com > ... > Technical / Maintenance Jun 19, 2005 - 17 posts - 9 authors
The truck will start but then die right out. I can do this all day long with the same effect. I can however keep it running by feathering the throttle. if ...
Check your set screw, and make sure it's not too low. Adjust the screw to the point that where it idles at the proper speed. Also, maybe check your throttle cable for too much slack.
First things first, have someone check the fuel pressure with a gauge. The EGR valve is not supposed to be open unless the car is moving at more than 20mph.
Some models have to be retaught how to idle once the battery dies, so you need to start the truck and feather the gas peddle to keep it running and do this for a few minutes, the computer has to relearn how to idle the engine.
after changing the bateery u need to drive the car awhile.. you have to relearn the computer programming. start car and feather gas pedal keep it started and drive a bit.. computer will relearn and be ok
THIS SOUNDS LIKE A INTAKE MANIFOLD VACUUM LEAK. TO CHECK THIS GET A CAN OF CAR SPRAY AND SRAY AROUND THE INTAKE GASKET WHILE THE ENGINE IS RUNNING, IF THE ENGINE HAS A LEAK IT WILL START RUNNING OK WHILE THE YOU ARE SPRAYING.
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