Car stalls while driving then takes a while to refire?

1994 PONTIAC TRANS AM
85,000 MILES • 5.7L • V8 • 2WD • AUTOMATIC
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WALKERWEISER
  • MEMBER
  • 1 POST
Car stalls while driving then takes a while to refire. It does matter if it is cold or hot. I have changed the icm, fuel pump, fuel filter, air filter, plugs, plug wires, coil and coil wires. Sometimes its starts then dies. Sometime you can drive it and it runs fine. then you try and start it after driving it. it starts the dies just like you turned the key off. It does this randomly. Any thoughts?
Jan 22, 2015 at 1:33 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
clean throttle plate on both sides with choke cleaner and iac hole. scan for codes and check fuel pressure with a gauge 41-47 psi any thing lower pump is bad.
Jan 22, 2015 at 4:14 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,583 POSTS
They replaced the fuel pump so I don't think that is it, I can tell you if the MAF sensor is starting to go out it can tell the PCM to turn off the fuel, and can heck this by unplugging the MAF sensor to see if it makes a difference, here is the location of the sensor so you can give it a shot. Please go over this video as well

https://youtu.be/lXLJbuAZ4CE?si=qfg3CJ1tZMgOUOHd

Check out the images (below). Please let us know what happens.



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Sep 28, 2024 at 11:59 AM
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