2006 Grand Prix Supercharged Engine sputtering and etc.

Asked by May 22, 2014 at 11:54 PM about the 2006 Pontiac Grand Prix GT

Question type: Maintenance & Repair

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

1 Answer

4,875

Or it could be a bad thermostat. Do some trouble shooting before spending money on incorrect parts. It is important that modern engines run at the correct temperature. Not sure if that's causing the chugging problem or not, but it won't be helping.

1 people found this helpful.

Your Answer

Pontiac Grand Prix Experts

  • #1
    Js08016
    Reputation
    4,650
  • #2
    Tom Demyan
    Reputation
    3,230
  • #3
    munron
    Reputation
    2,690
View All

Related Models For Sale

Used Chevrolet Impala
390 Great Deals out of 25,628 listings starting at $900
Used Dodge Charger
247 Great Deals out of 32,817 listings starting at $2,000
Used Pontiac Bonneville
323 listings starting at $3,395
Used Chevrolet Monte Carlo
3 Great Deals out of 926 listings starting at $3,900
Used Pontiac GTO
357 listings starting at $5,900
Used Ford Mustang
253 Great Deals out of 36,718 listings starting at $2,500
Used Pontiac G6
24 Great Deals out of 2,849 listings starting at $699
Used Pontiac Grand Am
709 listings starting at $2,500
Used Chevrolet Malibu
458 Great Deals out of 49,834 listings starting at $2,111
Used Chrysler 300
313 Great Deals out of 19,356 listings starting at $1,500
Used Chevrolet Silverado 1500
1,758 Great Deals out of 149,164 listings starting at $444

Used Cars For Sale

2007 Pontiac Grand Prix GT For Sale
42 listings starting at $2,770
2006 Pontiac Grand Prix GT For Sale
36 listings starting at $2,500

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.