What do I need to fix im new with cars. I was on the freeway and my 2006 grand prix just started decreasing in speed, I was doing 70 and my speed start going down 30 sec later white smoke came out

Asked by Feb 05, 2015 at 09:16 AM about the 2006 Pontiac Grand Prix GT

Question type: Maintenance & Repair

2 Answers

3,155

Was the smoke coming out from under the hood, or from the exhaust in the rear of the vehicle?

3,155

If your engine controller senses a serious problem, it will go into "limp home mode" and you won't be able to drive over 30 mph. I would recommend getting the vehicle towed to a shop to prevent further damage.

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