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Heater blowing cold air on my 2001 pontiac grand am gt v6
2001 Pontiac Grand Am

Heater blowing cold air on my 2001 Pontiac grand am Gt V6

(2001 Pontiac Grand Am)
On my 2001 Pontiac Grand Am GT the heater just started blowing cold air today after a aftermarket stereo was installed a couple days ago.....is this a Thermostat issue or more likely a problem with the stereo install?
Tags: pontiac, grand am
1 answer & 0 comments
Popular Answer
on October 03, 2019
I would suggest that something must have been disrupted having the stereo installed. It seems too coincidental. The temperature blend door motor and wiring, which switch the doors in the plenum from hot to cold for air flow, reside behind the dash, perhaps something got disturbed. It's worth having the folks who installed the stereo recheck the area of their work.
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General Diagnosis
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on October 03, 2019
I would suggest that something must have been disrupted having the stereo installed. It seems too coincidental. The temperature blend door motor and wiring, which switch the doors in the plenum from hot to cold for air flow, reside behind the dash, perhaps something got disturbed. It's worth having the folks who installed the stereo recheck the area of their work.
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