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Old 02-06-2015, 11:46 AM
JamesDean's Avatar
Electrical Engineer
Join Date: Apr 2005
Location: NE Ohio
Posts: 5,009
Originally Posted by lakerat View Post
I think I have found the problem to low heat output. I put a digital thermometer in the side vent and get about 120 degrees on high blower setting I noticed that when I put the blower on low speed it goes up to 160 degrees this indicates a clog in the heater core do you guys agree?
I dont have any data to compare but I would think with more air moving across the heater core the temperature would resultant temperature would drop as you are cooling the core a bit and there is less time for that air to warm up.

Another thought, and I don't know how closely it will be related, is that maybe your recirculation pods are not opening. I know on those models there is no recirculation switch like in the later models however I do believe--under certain conditions--the recirc pods open allowing for in-car air to be used for heating.
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Old 02-06-2015, 12:49 PM
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Join Date: Dec 2014
Location: Canada
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I guess it's not that cold in Texas, so if you ask me it should be blowing hotter than that on high. Hopefully somebody else can measure theirs and then you can compare. It's -20 here so it wouldn't be a good comparison if I did it.
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