AC Fan or Switch
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Freshman User
Joined: Jul 2005
Posts: 25
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From: Kentucky
AC Fan or Switch
2 or 3 days ago I started my truck and AC fan would not blow. I moved AC/Heat selector to all positions, restarted truck, checked AC compressor, and no fan. I got on Interstate and as I got up to speed and still moving selector and fan switch to all positions, nothing changed. Then all of a sudden everything started working. Worked every time since, until this morning. After 3 or 4 stops, got in truck and started and fan would not blow. When driving at road speeds cool air would come out but was getting no help from fan. I stopped at parts store and tech unplugged fan connection to check fan and had power going to fan, felt I had a bad fan, plugged back in with power on and fan started working and worked ever since. Any ideas on what my be wrong?
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Freshman User
Joined: Jul 2005
Posts: 25
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From: Kentucky
That's what I am hoping has happened. I have driven 8-900 miles since it first happened and started my truck 30-40 times without it failing. It has never stopped working while truck is running, only at start up. Just thought someone may have had same odd problem. Thanks for everyone's input.
Posting Guru
Joined: Nov 2004
Posts: 1,137
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From: Asheville, NC
My '83 had a sticking ignition switch when I got it. The heater fan would not work unless I physically twisted the key back from the start position. A good cleaning and lubrication of the switch cured the problem. Also checked out and replaced the switch rack. It was worn, but not terribly.
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Freshman User
Joined: Jul 2005
Posts: 25
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From: Kentucky
Problem got worse and fan finally quit. Installed new fan motor and getting more air on low setting than I have in months. It must have been getting weaker for some time and had not noticed the difference until I put new fan motor.
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kasoe
1987 - 1996 F150 & Larger F-Series Trucks
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Feb 25, 2007 12:04 PM
