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Re: Car stalls after A short drive and wont start and run...
After it stalls and won't start check for spark and fuel. If it is missing spark, check the crank sensor and the ignition module. If it has spark check the resistance of the injectors.
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Can either be fuel filter is dirty or fuel pump is going and there may be a short or burnt wire on the fuel relay. they should all be located in the same area.
If it stalls when the brake lights come on then the idle is too slow. The high amps of the lights will load down the engine and lowers the idle.
Sometimes that's caused by a vacuum leak near the manifold area.
Sometimes air in the coolant will cause an idle problem. Air will keep the air temp sensor from sending proper info.
Hope this helps.
Sometimes that's caused by a vacuum leak near the manifold area.
Sometimes air in the coolant will cause an idle problem. Air will keep the air temp sensor from sending proper info.
Hope this helps.
it could be a bad fuel pressure regulator. or a blocked fuel filter. heres the regulator symtoms. the vehicle runs rough, the engine will not start ( usually in the morning )many times engine starts but stalls shortly after starting. a bad regulator can result in fowled spark plugs, replacement is only cure. ( black soot on plugs, blake smoke from tail pipe, running rough and stalling. check fuel filter first.
it looks like your engine is having an over rich fuel mixture maybe, thatswhy when you press the pedal to the floor it starts becouse you allow lots of air to help clean the mixture while cranking, also you should have black smoke in the tailpipe until it cleans up and runs fine, i think youre having a leak in one our more injectors you should check them first for proper seal under pressure these is done in an injector test machine, second it may be a defective map sensor these trucks some times have a bad map and dont give a MIL (malfunction indacator lamp) and last but more rare to be is a blocked fuel pressure regulator chek fuel pressure it should be between 38 and 45 psi and it shoul hold these pressure when you turn off the engine if pressure drops fast its injector seal problems or fuel pump check
U DON'T HAVE A CARBURETOR SO FORGET THAT, THE FUEL REGULATOR WOULD NOT CAUSE THIS PROBLEM. I AM A GM FACTORY TECH AND KNOW THIS WITH CERTAINTY. U COULD HAVE SLUDGE IN THE IDLE SPEED CONTROL AIRBYPASS VALVE.
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