1999 Pontiac Grand Prix Engine Stalls after Driving Long Di

  • 6 CYL
  • FWD
  • 15,300 MILES
Hi, I bought my 1999 Pontiac Grand Prix GTP back in January and it has 153,000 miles on it. My problem started in March. I will drive the car to work, to pick up my kids and then home and generally do not have any problems with the car, unless I accelerate too high and then the car sounds like it's suffocating (not getting enough fuel). If I drive the car to other places for example to work, pick up the kids, the store and on the way home the car will die the RPM's drop and then it chugs a bit then stalls. When you go to start it back up, it acts like it's out of fuel, unless you wait a minute before starting, then it starts up and you can drive it a few more miles and then it stalls again. And I go through the same process of restarting then going. It stalls about 4 more times before getting it home and then after it sits for 8 hours, it will start up and run like nothing is wrong until I go other places that I don't normally go. I have cleaned the MAF sensor, replaced the alternator, the battery and the fuel filter. Also, after drving for a bit, there is a whining sound(sounds like a shop vac), that sounds like the fuel pump when I turn the key on except it does it after about 30 minutes of driving and won't stop until you turn the car off. Then after the car sits, you don't hear it until driving for about 20 minutes again. The check engine light is not on and it's not throwing any codes. Please help because I can't afford to spend a whole lot of money taking it to shop to shop to shop to figure out what is wrong with it. Thank you so much! Kim
Do you
have the same problem?
Friday, August 27th, 2010 AT 2:36 PM

1 Reply

Replace EGR valve. Sounds like it's stuck open.
Was this
Thursday, September 2nd, 2010 AT 2:30 PM

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