87 Pickup heater fan problems
#1
Registered User
Thread Starter
87 Pickup heater fan problems
So I'm a little confused with this one. When you have the key on or truck on the heater fan doesn't do anything. But after you drive it for maybe 10 minutes it kicks on. It's really weak but hot air none the less. I'm thinking it could be wiring or a relay but would like some input if someone understands my problem.
#2
Registered User
iTrader: (-1)
Dirty contacts in the heater/ac control unit on the fan switch, failing fan resistor, failing fan unit, or just a loose connection at one of those three places.
I'd guess loose connector maybe first since it comes on eventually, and maybe the "percussive" test on the fan unit second.
I'd guess loose connector maybe first since it comes on eventually, and maybe the "percussive" test on the fan unit second.
#3
Registered User
Thread Starter
Alright. Thank you. I'm actually going to assume its something in the motor compartment. It has a newer motor and the previous owner messed up a lot of connectors and electrical components. What should I check in there?
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