low coolant but no leak

James Heidt

Asked by Mar 24, 2016 at 09:45 PM about the 2004 Pontiac Grand Am GT

Question type: Maintenance & Repair

My coolant is going somewhere but I see no leaks.  
I don't know what it is. I've changed the reservoir,
the o rings I flushed out all the hoses. Any answers

4 Answers


Possibly a head gasket, have a block check test performed that will confirm or deny a blown head gasket.


Had same problem with a 2001 Mercury Sable the way I stopped the leak is removed top hose going to radiator and poured some Aluma Seal Stop Leak into hose then reconnected hose and that took care of the could not found anti freeze leak.


Don't put anything in the cooling system especially that car, there are way too many small cooling ports in the engine as well as the radiator and heater core, small enough that that stuff will block them.


Only will clog if you use more then what is recommended if does not stop leak the first time do not continue to add more hoping it will work that is when you can clog up the cooling system.

Your Answer

Add photo

Related Questions

  • Low Coolant 4 answers

    Every time I put coolant in my 2001 Pontiac Grand Am the "low coolant" light still comes on and the car starts to overheat. I don't see any coolant on the ground so I don't know what the problem ...

    2001 Pontiac Grand Am SE


    Maintenance & Repair

  • coolant leak? 2 answers

    I have recently replaced the water pump, thermostat, resovoir bottle and coolant on my 99 grand am. My problem is that im getting the heat on and off and losing coolant. Today i noticed coolant sp...

    1999 Pontiac Grand Am 4 Dr SE Sedan


    Maintenance & Repair

  • it overheats in 20 minutes but no leaks 1 answer

    new hoses new belt but overheats badly in 20minutes but has no coolant leaks

    1997 Pontiac Grand Am 4 Dr SE Sedan


    Maintenance & Repair

  • I have a 1999 Pontiac Grand Am GT. I just replaced the lower intake manifold Gasket due to a coolant leak. And its still leaking coolant. Any ideas? 3 answers

    1999 Pontiac Grand Am 2 Dr GT Coupe


    Maintenance & Repair

  • coolant leak 2 answers

    Drove 15 miles to work when I parked most of the coolant was on the ground and my car overheated. The coolant was under the lower radiator hose. Now looking for the leak the car retains fluid and keep...

    2005 Pontiac Grand Prix


    Maintenance & Repair

Grand Am

Looking for a Used Grand Am in your area?

CarGurus has 1,981 nationwide Grand Am listings starting at $1,995.


Search Pontiac Grand Am Questions

Pontiac Grand Am Experts

#1 tenspeed
Reputation 7,080
#2 John Saffrahn
John Saffrahn
Reputation 1,480
#3 Tom Demyan
Tom Demyan
Reputation 1,240
View All

Related Models For Sale

Used Pontiac Grand Prix"
30 Great Deals out of 4,357 listings starting at $1,995
Used Chevrolet Impala"
934 Great Deals out of 35,696 listings starting at $1,500
Used Pontiac G6"
144 Great Deals out of 5,590 listings starting at $999
Used Chevrolet Malibu"
1,146 Great Deals out of 72,965 listings starting at $695
Used Ford Mustang"
733 Great Deals out of 41,077 listings starting at $900
Used Pontiac GTO"
13 Great Deals out of 515 listings starting at $6,500
Used Pontiac Bonneville"
3 Great Deals out of 859 listings starting at $2,950
Used Honda Civic"
1,143 Great Deals out of 59,092 listings starting at $995
Used Honda Accord"
1,258 Great Deals out of 78,695 listings starting at $1,400
Used Nissan Altima"
1,347 Great Deals out of 87,445 listings starting at $1,095
Used Ford Focus"
1,220 Great Deals out of 56,725 listings starting at $1,495