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98 gmc safari with a no re-start problem. Cold starts everytime, runs great. But, try to restart after running for a while and its a no-go...Additionally, IF it does start warm it is hard to do so and it will run for a while with minimal acceleration. If excessive pressure is placed on the gas pedal it will die and not restart for 30-45 minutes minimum...
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Could be the fuel pump as they use the fuel as a lubricant. When run dry this can cause wear to the impeller of the pump.
I would check the fuel pressure in the fuel rail.
sounds to me like your starter isn't shimmed correctly common problem for the 5.0l and 5.7l. your starter isn't meshing with your fly wheel correctly and causing unnecessary strain cause the problems you stated.
Call up your local truck parts dealer and get the part! I believe that you have the solution to the starting problem if you replace the auto choke control.
Try changing the fuel filter and checking the fuel pressure at the shredder valve. The readings should be 60 to 65psi with the fuel line pressurized with the engine not running, once the engine is running. It should drop by 5psi. Start with the simple things first. Keep me posted, be glad to help.
My 1997 safari was doing the same. After being shut off for a short period of time it started as if it was flooded. If I put the accelerator to the floor it would fire up. As well, I had no engine codes to report. I replaced the fuel pressure regulator and everything is great. It was leaking fuel into the engine causing it to act flooded when starting. Once started, the computer system made adjustments for the leaking fuel so the engine ran fine. If you turn the van off and immediately try to start it, it should fire up. (don't give it time to leak extra fuel into the engine)
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