My 99 Pontiac grand am keeps dumping coolant. I was told it was due to the thermostat housing which I replaced abd for a while it stopped leaking but it started again. It is alsorunning hot any ideas?


Asked by Nov 29, 2014 at 02:27 PM about the 1999 Pontiac Grand Am 4 Dr GT Sedan

Question type: Maintenance & Repair

1 Answer


head gasket seal maybe not good...or cracks .replace it or check if you have some leak///or poor coolant and dirty stuff in the bowl like brown or white gelly liquid...stuff.!!!..hum not good :( //flush the system and clean it whit Radiator flush cleaner /flush again and put some new coolant--for alumiun block only////////..I have before have this problem on my 97 grand am SE 3.1 sfi v6 engine and blow lt on the left side of the head of the engine ,, it start like you before ,,thermostat problem and after head gasket come later.. be aware of it !!! my advises and opinion ... here my picture of my old 97 grand am

Your Answer

Add photo

Related Questions

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"
28 Great Deals out of 4,397 listings starting at $1,972
Used Chevrolet Impala"
948 Great Deals out of 35,754 listings starting at $700
Used Pontiac Firebird"
11 Great Deals out of 895 listings starting at $2,900
Used Chevrolet Camaro"
812 Great Deals out of 38,797 listings starting at $2,650
Used Chevrolet Malibu"
1,146 Great Deals out of 72,632 listings starting at $695
Used Ford Mustang"
717 Great Deals out of 41,256 listings starting at $900
Used Pontiac Bonneville"
3 Great Deals out of 863 listings starting at $1,450
Used Honda Civic"
1,122 Great Deals out of 58,107 listings starting at $1,300
Used Honda Accord"
1,269 Great Deals out of 77,637 listings starting at $1,395
Used Nissan Altima"
1,373 Great Deals out of 87,444 listings starting at $1,195

Used Cars For Sale

2004 Pontiac Grand Am For Sale
481 listings starting at $2,699