Question about 1990 Plymouth Voyager

1 Answer

Radiator fan comes on but turns slow

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.

Posted by Steve Roll on


1 Answer


  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Plymouth Master
  • 5,692 Answers

Because of the Voltage, many of the fans have relays. You can get free wiring and fusebox diagrams at 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


1 Related Answer

Ted Schore

  • 7353 Answers


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


Add Your Answer


Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Cooling Fan Not Working

if the fan is electric, the problem is probably the fan thermostat. usually fitted into the water pipes near the radiator.

May 06, 2013 | 1996 Ford Escort 4 Door

1 Answer

Maza 323 radiator fan rotating direction

the direction of fan rotation will be on the motor body but check that th curved edge ( leading edge) of the fan blade is facing the radiator and that air is being pulled through th radiator. THe motors are dc operation and can spin in both directions and the fans themselves are made to fit in front of the radiator( a/c fan) and blow air through the radiator. So checking these points is necessary

Jan 19, 2013 | Mazda 323 Cars & Trucks

1 Answer

Big white fan connected or near radiator not working causing my temperature guage to slowly rise while im driving the car. i then switch my air-con on while driving slowly temperature goes down

That's the radiator fan malfunctioning. Check the fan motor itself by conecting direct to battery while disconected from harness. If not OK replace. If OK check the fan switches, These are sensors that turn the fan on when temperature rises. If bad replace.

Oct 05, 2012 | Cars & Trucks

1 Answer

Power steering pump on my 2001 mini one stays on when the ignithion is turned off

It is not your ps pump that is staying on, it is the ps pump COOLING FAN located below the pump. On 2001-05 Minis, this fan is wired directly into the wiring of the main radiator cooling fan, which has two speeds, low and high. When the engine compartment temperature reaches a certain level, the main radiator fan is supposed to come on, and since the ps cooling fan is also wired into that, it is supposed to also come on. But, that low fan speed is achieved by routing power to a resistor, located at the top back of the radiator on passenger side, that cuts the power down. This resistor is highly prone to corrosion and failure. When that happens, neither the main radiator cooling fan nor the ps pump cooling fan can come on UNTIL the engine compartment temperature reaches an alarming level, which switches through a relay power directly to the fans, by-passing the resistor. By then both fans are attempting to bring the temperature back down to a safe level. Then, if you turn your engine off before the temperature reaches the lower threshold so that the fans are still running, the ps pump cooling fan will just keep right on running, as there will be no relay signal given to turn it off, and your battery will be drained.
To fix this, the resistor either needs to be replaced, or, the resistor can simply be removed and the contacts jumped. This last fix will mean that when the lower temperature threshold is reached, the main radiator cooling fan will come on at full speed, and the ps pump cooling fan will also come on. After my ps pump failed due to fan failure, I did this to my '03 Mini, and have run it for years this way. No more ps pump problems. You do need to make sure you keep the fan clear of debris and freely turning, or you could have bigger problems, like a fire, since the wires will get very hot sending power to the fan motor when the fan is bound up with the motor not turning. A blown fuse will often be the first indication of a fan bound up.

Apr 14, 2012 | BMW Mini Cars & Trucks

1 Answer

May i know the rotation of the two auxillary fan along the radiator to reduced the heat on it

The fans can spin in either direction based on how the fan blade is position. If you're worried about the fan facing the right direction here's how to verify it. When the fan is on it is suppose to pull the air through the radiator and pushing it out into the engine compartment. Basically the fan helps more air come into the front of the car which in return cools down the radiator. So just check which way the air is being sucked in and pushed out, the outwards air should be going in the direction towards the rear of the vehicle. If you have any more questions please let me know.

Mar 25, 2011 | 1996 Nissan Maxima

1 Answer

I have an 99 mercury villager and the ''engine fan'' won't come on I took the connectoroff and wired it directly to the battery and it does work, So is it a blown fuse or some sensor and If so where is...

you have one low speed relay and 2 high speed relays in the battery box under the hood. Check them first.
Could be the ECT Sesnor, engine coolant temp sensor. Does it come on when you turn a/c on?

Go here for team help

Jul 28, 2010 | 1999 Mercury Villager

2 Answers

Radiator fan not working.i do not know the problem is the electric motor or the relay

You can wire positive and ground right to the fan motor to see if the fan works.

Feb 04, 2010 | 1995 Mitsubishi Mirage

2 Answers

I have hot wired the rad fans to run

If you have hot wired the fans already why not bypass the speed regulator circuit you could add a 3 way inline switch to manually control your fans. Since you have replaced the thermostat, try checking the Rad to see it is circulating properly when engine is cold remove the rad cap start the car and look into the you should be able to tell if it is circulating or not. Have a rad shop test your coolant to make sure you have the needed blend to cool your engine this is normaly done free of charge. Good Luck to you!!

Jul 14, 2009 | 1993 Audi 90

1 Answer

A/C issues?

This is a case of AC fan on radiator not working. The fan, one of two, comes on when you turn on the AC. Well, supposed to come on.. Have that fan chk'd

Jun 26, 2009 | 1999 Acura TL

Not finding what you are looking for?
1990 Plymouth Voyager Logo

3,054 people viewed this question

Ask a Question

Usually answered in minutes!

Top Plymouth Experts


Level 3 Expert

85239 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

14850 Answers


Level 3 Expert

4369 Answers

Are you a Plymouth Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides