Question about 2004 Pontiac Grand Am

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Coolant flush when is the reccomended time to flush a 2004 pontiac grand am gt is it 60.000 90.000 or 130.000

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Either 100,000 miles or whenever contamination is noted in the coolant.

Posted on Nov 13, 2008


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My coolant isnt circulating,i have heat but low power and high car will overheat if I climb hills.

Hey Rayna,,, if you are sure the coolant is not circulating..??.. Then the water pump is no longer functioning.. OR....the coolant passages have partially clogged up.. When you replaced the thermostat , you should have reversed flushed the entire coolant system, check the radiator hoses for wear (they wear out from the inside), flushed the radiator completely..... Do the complete flush and check the hoses.. refill and see how much better it does..

Jul 11, 2017 | Pontiac Cars & Trucks

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DexCool. However, if you completely flush the entire coolant system clean, you can use whatever you want. GM recommends, and will only warranty the engine, DexCool as the coolant.

DexCool is only a few bucks more per gallon, and your car only hold about 2 gallons total. I just flushed my car and used Havoline brand DexCool. Just make sure whatever brand you buy, it say DexCool on it. And make sure that you either premix it to be 50/50 coolant/water, or buy the premixed stuff. Like I said, you'll need about 2 gallons of mixed 50/50 if you flushed the engine out.

Nov 02, 2010 | 2004 Pontiac Grand Prix

1 Answer

On a 2004 silverado with a 5.3 I am very slowly losing antifreeze. No visible leak anywhere. What are the probable causes?

(inside the radiator.) trans fluid flows thru a line in to the bottom of the radiator. to keep the trany fluid cool. if that line is corroded inside the rad,coolant will get into your trans, check your trany fluid to see if it has coolant in it. if you do change radiator and flush transmission, note: if it is, the odds are the transmission will not function properly even after you have had it flushed.

Jun 08, 2010 | 2000 Pontiac Grand Am GT

1 Answer

I have a 2004 Grand am gt and have noticed that the Temperature Gauge gets to Normal Temp and then slowly moves slightly (about two tick marks) to the right then it returns back to normal. It does this...

well not usally it sounds like the thermostat is sticking i had this promblem on my 01 grand am it was themostat sticking i fixed that by replacing thermostat it worked fine for a year then started to do it again finally noticed that my antifrezze was dirty and i needed a flush have you flushed or changed yours best bet flush the antifreeze then replace thermostat

May 05, 2010 | 2004 Pontiac Grand Am

1 Answer

2004 GP GT Heater fan not working.

1st chek all the fuses and then ensure the connections are all tight and connected may also be the switch itself so i reccomend a test light to determine power to the lever...

Feb 19, 2010 | 2004 Pontiac Grand Prix

2 Answers

Where is the coolant sensor located for a pontiac grand am gt

It looks like this with a connector to it and is on the side of the engine block:

Look right under the radiator hose.

Dec 01, 2009 | 1999 Pontiac Grand Am GT

1 Answer

97 Pontiac grand am overheats as soon as it gets to running temp

If electric fans are coming on, and you have filled the system with the heater turned on high to purge it of air, even though you flushed it, I'd have the radiator flow tested (even when flushing, coolant tends to go around internal blockages, limiting its ability to work correctly) otherwise you need to begin testing from square one like you had never seen it before (don;'t assume anything you did is working) Pressure testing of coolant system, hydrocarbon test at fill opening and engine compression tests are important as well as what I mentioned above.

Jul 16, 2009 | 1997 Pontiac Sunfire

2 Answers

The coolant leaked right out onto the ground, the pump is working

Those cars have big problems with the intake/intake gaskets leaking, and water pumps. When you find the leak, repair and flush with coolant other than dexcool as this is the source of most of the cooling issues on GM cars.

May 30, 2009 | 2004 Pontiac Grand Prix

1 Answer

Heater does not work and car is overheating

Probably a clogged heater core. Orange coolant clots after a while. Should be replaced more often than recommended. If you have intermittent heat you might get lucky with a coolant system flush, otherwise you'll probably have to replace the heater core.

Dec 14, 2008 | 2002 Pontiac Grand Am

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