2002 pontiac grand prix antifreeze coolant leak


Asked by Mar 31, 2013 at 09:42 PM about the 2002 Pontiac Grand Prix GT Coupe

Question type: Maintenance & Repair

My antifreeze is leaking on ground near the firewall on the pass. side directly straight down below the alternator under the belt. also now there is a sloshing sound behind the dashboard now.

15 Answers

pump the coolant loop up by putting a pressure checker on the radiator, and watch where's it gushing from....it it's just a hose replace it, hopefully it's not the heatercore, but may not be such a tough job on your Pontiac.

2 out of 2 people think this is helpful.

Sound like a heater core leak and it coming out of the evap. Drain onthe firewall. But im not there so i cant be sure. Have the cooling system pressure tested and observe where the leak it coming from

3 out of 3 people think this is helpful.

thanks. Is it expensive to get it pressure checked


Shouldnt be i guess it depends on where you go


I looked under ythe car on the pass side just between the oil pan anothe small pan just above a coil looking thing, it's all wet there and dripping

10 out of 10 people think this is helpful.

Meanwhile don't let anti freeze level too low. At the store u can get pre mixed anti-freeze that's already to go.

1 out of 1 people think this is helpful.

http://www.harborfreight.com/radiator-pressure-tester-kit-69258.html ~~not all that cheap, but you'd be able to pressure test all the cars in the neighborhood~

2 out of 2 people think this is helpful.

does it mean anything when your in park and you rev the engine and in gurgles

nah, eighty bucks thru amazon or harbor freight---can't duck the cost~

yes Jrock40, it means there is air in the cooling loop~

Best Answer

is there any quick way to get it out

1 out of 1 people think this is helpful.

Look with a bright light and feel around to find the leak, might be something so simple to fix. Loose clamp, short section of hose you could do yourself. When you run the engine, and get it warmed, it will pressurize itself. Top it off with fluid cold, run it till operating temp. Then shut it off at that time trace leak find out source of leak.



there might be a "convenience" shroeder valve near the high-point at the heat exchanger...use this to 'belch' the system of air, else take off the top hose to the heat exhanger enough time to let the air out~


You don't want to drive around with low coolant. It's a sure way to blow your head gasket from overheating. Fill the coolant reservoir, get the engine up to temperature, try to spot where it is leaking from. Bleed the air out using these instructions. http://www.gaownersclub.com/forum/faq.php? faq=maint_repair#faq_cooling_serv

2 out of 2 people think this is helpful.

Your Answer

Add photo

Related Questions

  • What would cause a pontiac Grand Prix to use water. 3 answers

    We have a 1998 Pontiac Grand prix with a 3800 engine and it uses water. We changed the water pump and thermostat. Any idea's on what could be the problem?

    1998 Pontiac Grand Prix


    Maintenance & Repair

  • pontiac grand prix GTP 8 answers

    i have a 2004 pontiac grand prix gtp, i had my power steering pump changed and every since my car is loosing antifreeze n trys to over heat but dont, its not leaking i dont have milky or watery oil ...

    2004 Pontiac Grand Prix GTP


    Maintenance & Repair

  • Pontiac grand prix se 3.1 coolant problems 10 answers

    Ok so I have a 2002 pontiac grand prix se 3.1. I'm kinda lost at what to do since I'm not a car guy, I do have mechanical abilities as I have fixed a couple things already on vehicles. But I was w...

    2002 Pontiac Grand Prix SE


    Maintenance & Repair

  • The coolant light is on in my 2002 Pontiac Grand Prix. 2 answers

    I am constantly topping the fluid in the resivor. I checked under the car and it seems to be coming from the area above the transimisiom pan. I checked the hoses and radiator and found no leaking. It ...

    2002 Pontiac Grand Prix


    Maintenance & Repair

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 3,722 nationwide Grand Prix listings starting at $879.


Search Pontiac Grand Prix Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Pontiac Grand Prix Experts

#1 Js08016
Reputation 3,880
#2 Tom Demyan
Tom Demyan
Reputation 2,580
#3 munron
Reputation 2,060
View All

Related Models For Sale

Used Chevrolet Impala
953 Great Deals out of 35,423 listings starting at $1,700
Used Pontiac Bonneville
9 Great Deals out of 652 listings starting at $1,375
Used Chevrolet Monte Carlo
21 Great Deals out of 1,687 listings starting at $2,491
Used Pontiac Grand Am
1,632 listings starting at $1,298
Used Chevrolet Malibu
1,182 Great Deals out of 83,205 listings starting at $1,800
Used Ford Mustang
564 Great Deals out of 43,003 listings starting at $1,699
Used Chevrolet Camaro
432 Great Deals out of 40,831 listings starting at $3,500
Used Buick Regal
148 Great Deals out of 11,671 listings starting at $1,450
Used Nissan Maxima
399 Great Deals out of 24,556 listings starting at $999
Used Jeep Grand Cherokee
922 Great Deals out of 66,789 listings starting at $1,500
Used Nissan Altima
1,091 Great Deals out of 83,136 listings starting at $1,600

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
13 Great Deals out of 465 listings starting at $900
2007 Pontiac Grand Prix For Sale
3 Great Deals out of 518 listings starting at $2,995
2006 Pontiac Grand Prix For Sale
4 Great Deals out of 639 listings starting at $2,000
2005 Pontiac Grand Prix For Sale
443 listings starting at $5,900