Reduced engine power

Tiny
JBEL
  • MEMBER
  • 2008 PONTIAC MONTANA
  • 2WD
  • AUTOMATIC
  • 16,000 MILES
My engine light came on and it says reduced engine power. Then the van loses power and will only drive at 30 km an hr. It doesn't stall or stop. After a day or two it'll run fine but the more I drive it it will do the same thing. Ran a coding device on it and it said it was the cam sensor. Had it changed and it ran fine for an hour and now it did the same thing.
Friday, February 7th, 2014 AT 8:57 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
When a car goes into limp mode with the codes you have either either means the throttle body is going out or the computer is having a problem. If i was to guess I would say it would be the throttle body becasue they have had problems with those.

Here is a guide and some diagrams to help you see if you can get the problem fixed.

https://www.2carpros.com/articles/how-a-throttle-body-works

Please let us know what happens.

Cheers, Ken
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Wednesday, October 18th, 2017 AT 2:33 PM

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