Car over heating

Asked by Oct 31, 2015 at 01:56 PM about the Pontiac Grand Prix

Question type: General

Water full I drive about half mile needle
goes up pass 210 at times it will drop down
to 165 175 fast  could this be that get
getting stuck

2 Answers

33,895

Sounds like you need a new thermostat. While you are at it flush the engine and put new anti-freeze in.

3,485

I'm not sure that you have a problem at all. While it does seem a bit extreme, I think what you are seeing is the engine heating up, the thermostat opening, the temperature dropping, and the thermostat closing again. That's a pretty normal cycle. Having said that, thermostats don't last forever and they aren't expensive so change it out just to be sure. And as has been mentioned if your coolant is 5 years old or older its time to flush the system and put in new coolant. Change the plastic elbows that run to the heater while you're at it. They don't last forever either and will leave you stranded when they go.

Your Answer

Add photo

Related Questions

  • about my car 1 answer

    My heating gauge only goes up when my air is on an it's summer time I need my air what should I do I need help

    2000 Pontiac Grand Prix

    -

    General

  • car overheating 1 answer

    2006 poniac gran prix i have change the bottom hose, thermostat, heating sensor, radiator, water pump and it still over heat what can it be

    2006 Pontiac Grand Prix Base

    -

    General

  • car overheating 2 answers

    2006 poniac gran prix i have change the bottom hose, thermostat, heating sensor, radiator, water pump and it still over heat what can it be and can take the radiator cap off right after shoudnt the...

    2006 Pontiac Grand Prix Base

    -

    General

  • why does temperature gauge fluctuate from nearly over heating then back down again? 7 answers

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

    2006 Pontiac Grand Prix Base

    -

    General

  • Over heating and no heat 16 answers

    My fans work my hoses are hot and I have fluids and my gauge still in the red zone and no heat even on full blast just cold air I did change thermostat someone please help me

    2004 Pontiac Grand Prix GT1

    -

    Maintenance & Repair

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 3,770
#2 Tom Demyan
Tom Demyan
Reputation 2,510
#3 munron
munron
Reputation 2,000
View All

Related Models For Sale

Used Chevrolet Impala
920 Great Deals out of 36,052 listings starting at $1,500
Used Pontiac G8
21 Great Deals out of 405 listings starting at $5,000
Used Dodge Charger
550 Great Deals out of 28,589 listings starting at $2,275
Used Pontiac Bonneville
4 Great Deals out of 672 listings starting at $2,298
Used Pontiac G6
140 Great Deals out of 4,883 listings starting at $999
Used Chevrolet Monte Carlo
17 Great Deals out of 1,730 listings starting at $1,695
Used Pontiac Grand Am
1,703 listings starting at $1,995
Used Chevrolet Malibu
1,112 Great Deals out of 78,203 listings starting at $2,495
Used Pontiac GTO
5 Great Deals out of 494 listings starting at $5,900
Used Chevrolet Camaro
664 Great Deals out of 38,931 listings starting at $2,995
Used Chrysler 300
514 Great Deals out of 20,476 listings starting at $1,500
Used Ford Mustang
724 Great Deals out of 38,166 listings starting at $1,750
Used Nissan Maxima
425 Great Deals out of 24,976 listings starting at $1,500
Used Jeep Grand Cherokee
1,087 Great Deals out of 69,712 listings starting at $495
Used Dodge Challenger
425 Great Deals out of 24,974 listings starting at $7,980