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Weird heater problem

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Weird heater problem

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Old

Oct 25, 2014 | 09:57 AM

#1

tinman52

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Welder User

Joined: Feb 2009

Posts: 5,269

Likes: 50

From: northwest MT

Club FTE Silver Member

Weird heater problem

I just noticed when I turn on the heater fan in my '79 F250 the temp gauge goes to hot really quickly and stays there. Turn it off and it comes right back down. It doesn't seem to be overheating, so I'm assuming it's an electrical problem, but how are these two systems connected? Any ideas?
Truck has a 300 six and no A/C. Thanks!

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Old

Oct 26, 2014 | 09:28 AM

#2

dlburch

Cargo Master

Joined: Jul 2005

Posts: 2,309

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From: Kansas

just curious if the oil pressure or fuel gauges are affected at all?

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Old

Oct 26, 2014 | 09:36 AM

#3

bertha66

Lead Driver

Joined: Oct 2004

Posts: 8,062

Likes: 35

From: Central Oregon

Pull the heater control panel and check for a burnt/bear wire.

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Old

Oct 26, 2014 | 06:24 PM

#4

tinman52

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Welder User

Joined: Feb 2009

Posts: 5,269

Likes: 50

From: northwest MT

Club FTE Silver Member

Thanks for the replies. No other gauges seem to be affected.

Good idea on the bare wires.....about the only thing it could be it seems. Will check it out.

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