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Update 700 1989

posted by  B.B. on  Thu May 15 22:37 CST 2008
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Mon Oct 6 13:15 CST 2014
[RELATED]

Did you check the radiator switch with your ohmmeter - make sure it isn't stuck "On"

The fan relay is involved with
Turn signals
Air Conditioning/ ACC
Seatbelt reminder
Power windows
Electric Cooling Fan
Heater fan
Electric heated front seats
Hot Start valve

Fuse 7 is only for the elec heater fan- unhook the elec heater fan and pull fuse 7
and measure with your 10 Amp meter from each side of the empty fuse socket
with the ignition switch on. (Check you have +12VDC at one side of that fuse socket)
There should be no current at all since the fan is in series to ground.

Did you replace that relay with one from a junker? maybe both relays are tired?
If the relay gets hot with fuse 7 pulled, then it's likely some cold solder or loose joint in the relay
you can pop the case and look over the relay for any signs of heat, look for bad solder joints.
reflow suspicious joints with a solder iron.






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