temp keeps going up and down on my 2000 grand prix gt whats wrong

Asked by Jul 18, 2016 at 10:34 PM about the 2000 Pontiac Grand Prix GT

Question type: Maintenance & Repair

all new parts just changed radiator thermostat upper intake gaskets on upper
and lower intake both hoses and hoses ALSO NEW COOLANT TEMP
SENSOR

8 Answers

74,125

Did you replace the water pump all so?

Best Answer Mark helpful
30

Fan work all the time?

No didn't replace water pump and the fans are on when I check

I tried to bleed the system of air but don't know how just kinda winged it did it twice for about 10 minutes do I need to do it longer or something else I'm not doing

30

Did u put the thermostat in the correct direction. Does it actually over heat or just fluctuate and I are u driving it when it does, going fast, driving slow or parked. Does your passenger floor board get wet and/or does water come out of a/c drain with a/c off

thermo is in right just fluctuates does it while parked or in stop and go traffic no water have seen water coming out after have run ac but from underneath the car while off

fans seem to run all the time and put on new coolant res tank

30

Could have bad gauge

Your Answer

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 1,800 nationwide Grand Prix listings starting at $2,500.

ZIP:

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
386 Great Deals out of 25,605 listings starting at $900
Used Pontiac Bonneville
324 listings starting at $3,395
Used Chevrolet Monte Carlo
923 listings starting at $3,900
Used Chevrolet Camaro
242 Great Deals out of 28,774 listings starting at $1,800
Used Ford Mustang
251 Great Deals out of 36,708 listings starting at $2,500
Used Pontiac Grand Am
697 listings starting at $2,500
Used Chevrolet Malibu
449 Great Deals out of 49,700 listings starting at $2,111
Used Pontiac Firebird
8 Great Deals out of 674 listings starting at $3,695
Used Chevrolet Silverado 1500
1,758 Great Deals out of 149,002 listings starting at $828

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.