Question about 2005 Pontiac Montana

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2005 PONTIAC mONTANA-NO HEAT

After the latest cold snap we had a problem starting the van. Once she started we have no heat. The fans are blowing only cold air. As well we can not change from vents to anything else, like floors defrost...
We have replaced both fuses that have to do with the climate control and heat. Any help would be great.

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  • neuffie Feb 07, 2009

    Thanks to all that replied. We took it in for a diagnotic and it turns out that there was a "service call" to have the heaters reprogrammed. This service call had been out since Feb 2008. But since GM had put it down as a service call no one whos vehicles are affected will know about it till they go in to the garage/dealer for a problem or this problem.

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Had the same problem with 03 Montana and it was the actuator assemble. It controls the hot and cold air and controls all of the other functions....defrost, floor etc...

Posted on Feb 06, 2009

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Your radiator may have frozen the thermostat

Posted on Jan 11, 2009

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