I have a 98 Pontiac Grand AM and I've had the engine replaced with a used one with around 78,000 miles on it. Ever since I've had it back the heat doesn't work right. If I let the car sit for a while it'll have heat but if I'm driving my heat blows cold. It doesn't matter if I let it sit and let the heat get warm as soon as I start driving I lose the heat and it blows cold until I let it sit for a little bit again.
1998 Pontiac Grand AM heat issues
- Thread starter kyo1986
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pat.d.boer
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Make sure your coolant is to the full line. Run the motor to operating temp and check again. Fill again if needed. Keep running.
There is a brass bleeder screw on the left side of the motor off a black pipe.
Crack it loose, watch your eyes and hands. Set it so a little coolant is leaking. Watch for air bubbles and coolant tank level. If you see no air in 2 minutes tighten the bleeder. Fill to line.
There is a brass bleeder screw on the left side of the motor off a black pipe.
Crack it loose, watch your eyes and hands. Set it so a little coolant is leaking. Watch for air bubbles and coolant tank level. If you see no air in 2 minutes tighten the bleeder. Fill to line.