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Reduced engine power

Tiny
COMPTON85
  • MEMBER
  • 2005 PONTIAC GRAND PRIX
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 70,000 MILES
I have a 2005 pontiac Grand Prix. It keeps losing its engine power. I've cleaned throttle body and made it look brand new inside and also put a can of seafoam in the tank. Reduced engine power message keeps coming up as my wife sits in the middle of the road.
Shutting it off for a minute then restarting it helps for awhile then all over again after awhile

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Wednesday, August 24th, 2011 AT 8:37 PM

2 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
You need to take it to a auto parts store like auto zone and have them scan it for codes. Let me know the exact code numbers you probably have a problem in your throttle control system.
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Wednesday, August 24th, 2011 AT 8:40 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
You're having an electronic issue likely with the electronic throttle system. You need to get it into a capable shop for diagnosis. The parts are expensive and can leave you stranded if you ignore it.
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Wednesday, August 24th, 2011 AT 8:42 PM

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