1995 Grand Am hesitating on highway

Tiny
RICK3557
  • MEMBER
  • 1995 PONTIAC GRAND AM
I have a 1995 Pontiac Grand Am with a 3.1 V6 engine and Automatic trans and 124,000 miles on it. It misses when accelerating on the highway. If I floor it then the hesitation stops and it kicks in to passing gear. But if I slowly accelerate then it misses and the "service engine soon" light comes on and stays on until I shut the engine off. My son checked the codes and said it was a bad EGR valve. We then replaced the EGR valve but it is still doing the same thing. Does this sound like anything anybody has had trouble with? Thanks, Rick
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Friday, June 1st, 2007 AT 10:24 AM

3 Replies

Tiny
TOTALLY CONFUSED
  • MEMBER
Hi there I understand where your coming from. My 93 grand am was doing that about a month ago and now it won't go over 15 mph. So if you find out anything then let me know. I wish I could help you but I can't even help myself :roll:
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Friday, June 1st, 2007 AT 8:59 PM
Tiny
SUTHERNROSE
  • MEMBER
I have a 95 Grand Am 6 cyl AT and I am having a problem with accelerating and stalling also. I have had the car for about 8 months and it seems to do better at times and then at times will cut out constantly. Anybody know how to fix this? I also had my car diagnosed and was told it was an oxygen sensor but did not need replacing.
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Friday, June 8th, 2007 AT 10:59 AM
Tiny
TBDK
  • MEMBER
I just serviced my 87 Grand AM. It's got a 3.0 V6 bored out.40 over. It would loose power and back fire. Check engine light would come on and stay there til car got shut off. I also got real bad fuel economy. Turned out it was the Crankshaft position sensor. I thought It may have been the Throttle position sensor but upon buying the manual and reading I found out I almost put a new $50 part on my car That It Didn't Need. I would check the Throttle position Sensor, The MAP or Mass Airflow(which ever your car may have), The Crankshaft sensor, and also make sure it's not time for a tune up.
Hope this helps.
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Saturday, June 9th, 2007 AT 10:16 AM

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