Guide :Maintenance & Repair : 2006 Pontiac Grand Prix GT

2006 Grand Prix Supercharged Engine sputtering and etc.

I recently purchased a 2006 Grand Prix GT 3.8L with a Supercharger. The vehicle ran great on my test drive, but after taking it home i noticed that there is a slight chug / sputter at low speeds (0-15) and at some high speeds (40-45 and 50-55).Now, I assumed that it may have been bad gas, so I used up the remaining gas that was in the car when I got it, and filled it up with brand new 93. This helped the problem a bit, but it is still occasionally chugging. There is no check engine light on. Any ideas?Additionally, the thermostat gauge claims that the car is running cold-- I assume this is a bad thermostat sensor and intend on replacing it. Could it be something else, you think?Thanks so much for your time

Research, Knowledge and Information :


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Pontiac Grand Prix Car Questions- Repair Forum Answers


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