Thread: 420 SEL Heat
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Old 01-11-2001, 09:49 AM
gregga gregga is offline
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Join Date: Jan 2001
Location: Cedar Rapids, Iowa
Posts: 63
I drove from Iowa to Michigan and back last week with the heat on high and the fan on low. Temp setting was 22. I have a new monovalve and checked the temp sensor in the water outlet. Got a used pushbutton unit yesterday and tried it. No change. Put the original back in and reseated the connector at the water neck and behind the RF headlight. It worked halfway home from the gas station where I work part time and then went back to blowing hot air. Is the temp sensor behind the radio the next thing to troubleshoot? I resoldered the board in the used unit last night after I got home. Should I try it again? Bad wire somewhere? I also checked a bungh of pins, 2, 4, 7 and 10 I think, against pin 12 of the right connector per the Mitchell guide. I'm stumped and have to make the trip again tomorrow. It's no fun trying to regulate temperature with the sunroof.
'89 420 SEL "Moby Dick"
'30 Ford Coupe
'31 Ford Slant Windshield Town Sedan
'33 Ford Pickup
'34 Ford Pickup
'01 Honda Passport
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