Question about 1990 Plymouth Voyager
The radiator fan comes on but rotates slowly. It is not a 2 speed fan. Wired it directly to the battery so I know it works like it is supposed to. Also hard wired the fan in instead of the bullet plug it had before. After all this it does come but turns slowly.
Because of the Voltage, many of the fans have relays. You can get free wiring and fusebox diagrams at Autozone.com after registering your vehicle. That is if you want to go back to stock.
I reread your statement and I think you mean that you tested the fan separately but when it is connected to the car it will only turn slowly.
Test the voltage going to the fan even though you did not use the stock connector. Look at the wiring diagrams and see if the power wire to the fan is controlled by a resistor or Relay which is limiting the fan speed. This is probably in the opposite direction of the connector you bypassed.and is meant to work automatically with a temperature sensor tripping it.
Posted on Jul 27, 2012
HACK! the radiator relay is probably bad, located down near radiator left lower corner,bolted to frame,have to get at it from underneath. Be sure fuse #24 (40 amp) is good. A scanner should activate the fan if the relay is good, if not its probably bad, Make sure the fan does not pull more than 20 amps when running, if it does, that could have burned up the relay.
Posted on Sep 14, 2011
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