My pontiac is losing about half a gallon of Coolant per week. Also...

5

Asked by Jul 20, 2015 at 10:13 PM about the Pontiac Grand Prix

Question type: Maintenance & Repair

I don't know if it's unrelated or not but the AC sometimes stops blowing cold on driver's
side.

I drive this car to and from work (44 miles a day) six days a week. The floor under the
car, AT my place of residence, is not stained. There is no "mayo" on the oil filler cap
and the oil on the dipstick looks normal.

4 Answers

16,850

I have used this before and it worked for me but no promises to you but if I were you i would give it a try. Its called Bars Radiator and Cooling System Stop leak. Now a few people will say not to use it because it will clogg up your cooling system and it would if you use more then that is recommended so if you do decide to try it and it does not work the first time do not keep adding more hoping it will work that is when you will clogg up your cooling system. Its been working in my cooling system for almost two years now and no problems. The A.C problem is unrelated that is another problem.

1 out of 1 people think this is helpful.
210,735

You can do what friebird suggests or find the leak, could be ahose, radiator, water pump, etc. and repair to stop the car from losing coolant. The AC is a blend door issue or your low on refridgerant. Might be time for a trip to the local garage.

3,505

Agree its good to find the leak if you can. Check the plastic elbows from engine to heater. They like to blow up and leave you stranded. If you can't find it though Bars Leak is an excellent product. You can actually use two applications if one doesn't work, but no more than that. I "fixed" my GP with it several years ago and add a couple of quarts of coolant a year and that's it. No guarantees of course, but it makes more sense than spending hundreds on an old car.

545

Check the heater core. They do not always leak into the car

Your Answer

Add photo

Related Questions

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 3,785 nationwide Grand Prix listings starting at $1,195.

ZIP:

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 3,770
#2 Tom Demyan
Tom Demyan
Reputation 2,520
#3 munron
munron
Reputation 2,010
View All

Related Models For Sale

Used Chevrolet Impala
1,000 Great Deals out of 36,595 listings starting at $1,800
Used Pontiac G8
19 Great Deals out of 428 listings starting at $5,800
Used Dodge Charger
535 Great Deals out of 29,304 listings starting at $2,343
Used Pontiac Bonneville
3 Great Deals out of 667 listings starting at $2,298
Used Chevrolet Monte Carlo
16 Great Deals out of 1,737 listings starting at $1,695
Used Pontiac G6
138 Great Deals out of 4,988 listings starting at $950
Used Pontiac Grand Am
1,716 listings starting at $1,995
Used Chevrolet Malibu
1,158 Great Deals out of 80,222 listings starting at $2,495
Used Pontiac GTO
7 Great Deals out of 500 listings starting at $5,900
Used Ford Mustang
719 Great Deals out of 38,847 listings starting at $1,999
Used Chrysler 300
517 Great Deals out of 21,195 listings starting at $1,500
Used Chevrolet Camaro
655 Great Deals out of 39,478 listings starting at $3,495
Used Nissan Maxima
501 Great Deals out of 25,222 listings starting at $1,500
Used Chevrolet Tahoe
1,103 Great Deals out of 31,960 listings starting at $1,495
Used Pontiac Firebird
10 Great Deals out of 833 listings starting at $3,800