I change my water hose on a Grand Prix 2006 3800. Then I change the thermostat but it still rising but never go in the red I don't have any leak anywhere but I have to out more water in it. This start

Asked by Jun 24, 2016 at 08:50 PM about the 2006 Pontiac Grand Prix

Question type: Maintenance & Repair

What else do y'all think is wrong?

1 Answer

4,245

If its using coolant its likely a head gasket failure and its leaking into the engine and being sent out the exhaust as steam. It could also be ending up in the oil. Check it. If its a milky color then that's where the coolant is going, if its not, then its likely leaking into a cylinder. I'd start out with an application or two of Bar's Leak. It's available at any auto parts store, is safe for your cooling system and works very well. It may well save you having to pull the engine apart to replace gaskets which is a major job, and may not be worth it on a 10 yer old car. I've used Bar's Leak on my car and it pretty much solved the problem.

Your Answer

Pontiac Grand Prix Experts

  • #1
    Js08016
    Reputation
    4,390
  • #2
    Tom Demyan
    Reputation
    2,990
  • #3
    munron
    Reputation
    2,400
View All

Related Models For Sale

Used Chevrolet Impala
105 Great Deals out of 994 listings starting at $1,500
Used Dodge Charger
61 Great Deals out of 780 listings starting at $2,000
Used Pontiac G6
6 Great Deals out of 150 listings starting at $2,000
Used Chevrolet Monte Carlo
18 listings starting at $6,000
Used Pontiac Grand Am
34 listings starting at $3,695
Used Ford Mustang
8 Great Deals out of 1,150 listings starting at $2,999
Used Pontiac GTO
2 listings starting at $13,900
Used Chevrolet Malibu
82 Great Deals out of 2,177 listings starting at $2,994
Used Chrysler 300
98 Great Deals out of 1,012 listings starting at $2,300
Used Honda Accord
81 Great Deals out of 1,075 listings starting at $1,200

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
3 Great Deals out of 19 listings starting at $2,200
2007 Pontiac Grand Prix For Sale
12 listings starting at $1,800
2006 Pontiac Grand Prix For Sale
14 listings starting at $6,998
2005 Pontiac Grand Prix For Sale
4 listings starting at $2,990

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.