why does temperature gauge fluctuate from nearly over heating then back down again?

Asked by Jan 12, 2016 at 01:34 PM about the 2006 Pontiac Grand Prix Base

Question type: General

looks like it wants to over heat but hasn't yet

7 Answers

21,120

Check anti freeze level making sure it's not low.

1 of 1 people found this helpful.

already did that and its still doing the same

8,435

If your antifreeze level is ok and ur cooling fans are kicking in normal you may have sticky thermostat. Can you hear the cooling fans kick in when this happens or are cooling fans already running?

1 of 1 people found this helpful.

the fans are going....do I need to replace the thermostat?

8,435

Yes

ok....thanks

21,120

If vehicle is actually not over heating you may just have a bad coolent temperature sensor or like Irodri911 suggested a bad thermostat stuck in the half open and have closed position or a clogged cooling system that needs to be flushed.

1 of 1 people found this helpful.

Your Answer

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 2,492 nationwide Grand Prix listings starting at $1,900.

ZIP:

Pontiac Grand Prix Experts

  • #1
    Js08016
    Reputation
    4,580
  • #2
    Tom Demyan
    Reputation
    3,170
  • #3
    munron
    Reputation
    2,590
View All

Related Models For Sale

Used Chevrolet Impala
507 Great Deals out of 32,641 listings starting at $1,000
Used Pontiac Bonneville
5 Great Deals out of 403 listings starting at $1,995
Used Dodge Charger
347 Great Deals out of 36,030 listings starting at $1,999
Used Pontiac G6
42 Great Deals out of 3,801 listings starting at $1,000
Used Pontiac GTO
401 listings starting at $5,000
Used Chevrolet Monte Carlo
8 Great Deals out of 1,174 listings starting at $1,125
Used Pontiac Grand Am
953 listings
Used Ford Mustang
340 Great Deals out of 42,824 listings starting at $1,488
Used Chevrolet Malibu
1,080 Great Deals out of 54,837 listings starting at $1,250
Used Jeep Grand Cherokee
900 Great Deals out of 71,642 listings starting at $950
Used Chrysler 300
339 Great Deals out of 19,644 listings starting at $1,400

Used Cars For Sale

2008 Pontiac Grand Prix Base For Sale
10 Great Deals out of 355 listings starting at $1,900

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.