Quote:
Originally Posted by JimmyCriswell
PO bypassed the heater core on my truck but the floor still seems to be lightly blowing heat into the cab.
What would cause this? I cannot hear the blower motor come on when the switch is is turned on either. I have a lot of diagnosing to do.
I suspect hoses are not connected either possibly. I will attempt to take some pictures tonight.
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Texas is likely the cause - 90+ degrees on the first day of Fall. Like Michael said, outside air is coming probably coming in through the cowl.
The outside air door is controlled with vacuum lines. It might be a good idea to check the vacuum system to make sure everything is opening and closing correctly. There is a diagram of the vacuum lines in this
thread.
Andy4639 usually chimes in to these threads with good information.