Quote:
Originally Posted by bzook
When I got home last night I covered the cowl with a thick moving blanket. Suddenly I had heat! It looks like there is a blend door issue letting outside air override that of the heater core. Now, which vacuum pod or actuator should I be looking for? Maybe for the time being I can shove foam under the cowl. I had never heard of this problem in all the heater related threads I'd read through. Thanks again.
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I have the same issue with my car... I have checked heater core flow and the circulation pump. I have also bypassed the mono valve. Unfortunately, it is -5 F here in New Hampshire, and I have 45 minute commute. Were you able to access the cowl vent actuator? Did that fix your problem?