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2002 Montana Intermittently won't accelerate past 30 MPH

Tiny
SYOUNGBLOOD256
  • MEMBER
  • 2002 PONTIAC MONTANA
  • 135,000 MILES
2002 Pontiac Montana will not accelerate after going 30 MPH. There are no check engine lights or any other signs or problems. This usually happens after driving 50 MPH or plus for 10 or miles, it decelerates and won't go above 30 until it sits for a few min turned off. At first it was just doing this for interstate driving, now it is happening more frequently.
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Sunday, March 4th, 2012 AT 1:15 AM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Have the trans checked to verify it is shifting. If it is ok, then I would check the fuel pressure. If that is ok, I would look at the cat converter for being clogged.

Roy
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Sunday, March 4th, 2012 AT 4:13 AM

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