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

18,180

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.
232,405

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.

3,825

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.

605

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 2,846 nationwide Grand Prix listings starting at $1,995.

ZIP:

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 4,120
#2 Tom Demyan
Tom Demyan
Reputation 2,760
#3 munron
munron
Reputation 2,150
View All

Related Models For Sale

Used Chevrolet Impala
507 Great Deals out of 29,009 listings starting at $1,100
Used Pontiac G8
18 Great Deals out of 336 listings starting at $4,995
Used Pontiac Bonneville
538 listings starting at $3,699
Used Dodge Charger
280 Great Deals out of 26,733 listings starting at $2,250
Used Chevrolet Monte Carlo
13 Great Deals out of 1,394 listings starting at $1,995
Used Pontiac G6
53 Great Deals out of 4,170 listings starting at $699
Used Pontiac Grand Am
1,220 listings starting at $950
Used Pontiac GTO
4 Great Deals out of 431 listings starting at $5,995
Used Ford Mustang
362 Great Deals out of 46,795 listings starting at $1,999
Used Chevrolet Camaro
154 Great Deals out of 32,696 listings starting at $1,995
Used Chevrolet Malibu
810 Great Deals out of 80,894 listings starting at $995
Used Honda Accord
723 Great Deals out of 86,674 listings starting at $1,250
Used Pontiac Firebird
8 Great Deals out of 732 listings starting at $1,800
Used Chrysler 300
330 Great Deals out of 20,311 listings starting at $1,000
Used Nissan Maxima
283 Great Deals out of 26,254 listings starting at $1,990