reduced engine power

2005 PONTIAC GRAND PRIX
70,000 MILES • 6 CYL • 2WD • AUTOMATIC
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COMPTON85
  • MEMBER
  • 1 POST
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

Aug 24, 2011 at 1:37 PM
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SATURNTECH9
  • ✓Experienced Mechanic
  • 30,869 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.
Aug 24, 2011 at 1:40 PM
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WRENCHTECH
  • ✓Experienced Mechanic
  • 20,760 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.
Aug 24, 2011 at 1:42 PM
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