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1999 Pontiac Montana 3.4L Heater Controls
Posted to GM HVAC on 11/9/2005 4 Replies

Customer complains that heater stays on "vent" mode when the weather gets cooler outside,but as soon as we check it out it starts to work on all [...] won't stay in this condition long enough to test it [...] for service bulletins, etc. and none [...] tips or ...

4 Replies Received (View Replies)

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Message Closed w/Summary

car Vehicle Data

1999 Pontiac Montana

VIN 1G3CG12KC3
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedHeater Controls
Message Closed w/Summary

car Vehicle Data

1999 Pontiac Montana

VIN 1G3CG12KC3
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedHeater Controls