05 Grand Prix Temp Sensor Off and Rough Warm Start

Asked by Scott Dec 27, 2017 at 08:08 PM about the 2005 Pontiac Grand Prix Base

Question type: Maintenance & Repair

05 3.8, 160000 miles. After sitting for an especially
cold 4 day weekend, it started a little rough
(understandable) and then when I stopped for gas it
wouldn’t start again without giving it gas. At this
point I noticed that the temp sensor did the usual
ramp up at starting but then went back to off once
the car was running. After work, it started normal
but I restarted once I got home and it needed the
gas pedal to start again. The radiator fans came on
immediately upon restarting. Outdoor temps range
from -10 to +15 F here.

2 Answers

Upon starting the following morning, very cold start, it started like normal and the radiator fans were not running. This leads me to believe the thermostat is working properly, but the temperature gauge has failed. However, this does not explain the difficulty starting when warmed up.

And now that I’m driving my thermostat is working... for today...we’ll see if it works tomorrow

Your Answer:

Own this car?

Share your experience with others.

2005 Pontiac Grand Prix

Review another car

CarGurus Experts

  • #1
    munron
    Reputation
    8,220
  • #2
    James Sparrow
    Reputation
    7,520
  • #3
    Dorian Hendricks
    Reputation
    6,170
View All

Know more, shop wisely

Search

Related Models For Sale

Used Pontiac GTO
9 Great Deals out of 204 listings starting at $10,950
Used Chevrolet Corvette
793 Great Deals out of 14,532 listings starting at $4,999
Used Chevrolet Impala
220 Great Deals out of 3,850 listings starting at $1,995
Used Ford Mustang
947 Great Deals out of 19,852 listings starting at $1,950
Used Dodge Charger
819 Great Deals out of 14,534 listings starting at $2,500
Used Pontiac Grand Am
40 listings starting at $3,667
Used Chevrolet Monte Carlo
4 Great Deals out of 199 listings starting at $3,500
Used Pontiac G6
6 Great Deals out of 279 listings starting at $2,470
Used Chrysler 300
276 Great Deals out of 5,093 listings starting at $700
Used Cadillac CTS-V
7 Great Deals out of 89 listings starting at $16,997
Used Chevrolet Tahoe
1,332 Great Deals out of 34,727 listings starting at $1,550

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. Content will be removed if CarGurus becomes aware that it violates our policies.