Question about 2002 Chrysler PT Cruiser

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How to test radiator fan motor

The fan motor doesn't start when up to temp. Then it over heats. How do you test the fan?

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Please check the fuses, and the relay first. Your local library should have a electrical schematic that you can copy. I am hesitant to tell you how to test the electric fan motor because if you do it wrong, you may damage the motor and have to replace it..

Posted on Nov 04, 2014

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Hello,

Well--you can unplug the fan (assuming a two wire fan) and run wires to your battery (positive and negative) (thus put a wire or alligator clip on one plug contact of the fan and run to battery--each contact of fan plug) this will effectively bypass any sensors (possible fan fault). If your fan works the motor is good and you have a bad sensor--if your fan does not work the motor on the fan is bad.

I hope this helps.

Posted on Nov 02, 2014

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I had this problem several years ago on a buick, and it turned out to be a relay in the electric box under the hood. You can check the fan by unplugging it, and making two jumpers with wire, and go straight to the battery. Make sure the polarity is correct, I don't know if the fan has a diode in the wiring or not. Any how if it runs the problem is not the fan, check your owners manual for the location of fuses and relays, ant research the switch location on the engine. Good Luck.

Posted on Oct 31, 2014

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First check fluid lvl then check fuse for fan then unplug temp sensor switch and use jumper wire in the wire socket fan should come on if not check temp sensor switch.

Posted on Oct 31, 2014

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Posted on Jan 02, 2017

udesh99
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SOURCE: Radiator Fans on 01 Town and Country do not come on

Ok, Dont replace anything with out checking .....Pls check your wire Connction By Muilti Meter. I think your has loose Connection.

Posted on Jun 01, 2009

  • 122 Answers

SOURCE: REPLACED RADIATOR, WATER PUMP, RADIATOR

sound like it need a good flush with a garden hose through each heater hose as well as through radiator

Posted on Feb 21, 2010

kapishtech
  • 2272 Answers

SOURCE: radiator fan doesn´t work. i would

Check you fan test the rad fans on a hot wire from the battery.If it runs with direct connection from battery that means fan is actually working but any of the other fan connecting parts internally are not letting the fan to work.But if fan does not work when you manually test it by connecting it to 12 volt battery then ,yes the fan is faulty and it needs to be replaced.But if fan isa working then the other parts to be checked are fan relay.Sounds like you need a new fan relay. This relay is NOT in the fuse/relay box under the hood. It is bolted to the radiator support, under the air filter box. ----------- Actually there are many other users facing this same problem Due to faulty fan relay.It was a recall by Chrysler voyager company ,because many of the users face the same problem.But the recall was for the car made in the year 1996.But your problem is same as that.I will mention what company has mentioned in its service bulletin:------ There was a Recall on the fan relay:------
Radiator Fan Motor - Relay Operation
NO: 08-34-96
GROUP: Electrical
DATE: Oct. 25, 1996
SUBJECT:
Radiator Fan Relay Operation
MODELS:
1996 - 1997 (NS) Town & Country/Caravan/Voyager
1996 - 1997 (GS) Chrysler Voyager (International Market)
DISCUSSION:
Conditions related to the radiator fan relay may result in the radiator fans not turning "ON" or not turning "OFF" as designed.
The screws that mount the relay to the left front frame rail may break causing the relay to overheat and turn off because it no longer has heat sinking capability to the frame rail. If broken radiator fan relay screws are found, they must be replaced with revised screw P/N 06035202. Also, the relay may have been damaged because of the overheating (but may still be functioning) caused by the lack of heat sinking and should be replaced.
Some vehicles may have an intermittent interference condition between the radiator fan blade(s) and the fan shroud that causes a high current draw that will fail the radiator fan relay. The relay can fail in an open condition preventing the fan motors from running and causing the engine to overheat. The relay can fail in a closed condition causing the radiator fans to continue to run with the ignition switch turned "OFF". If a failed radiator fan relay is found, it must be replaced with revised relay P/N 04886288AA AND screws P/N 06035202. Revised relay P/N 04886288AA has a higher current capacity that is able to handle the extra current draw related to the intermittent radiator fan/shroud interference.
A small number of vehicles may have corrosion develop in the radiator fan relay connector. On vehicles with this condition, the radiator fan relay connector should be replaced using pigtail service package P/N 04897034AA.
So as per your problem mentioned i think its a relay for radiator fan,that has to be replaced.The cost of new relay is near to $80.Replace the relay and it will work. On some Chrysler car models the relay is inside the engine bay bolted to front of the engine bay behind the bumper under the main air filter housing.Its fitted with 2 bolts.Just follow the fan wires.it connects to the relay.But if your relay checks out ok and working then,Problem is related to pcm. power train conrol module not sending a "turn me on signal" to the relay. Thanks. Keep updated for any more query. You can rate this solution and show your appreciation.

Posted on Sep 01, 2010

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Cooling fan(s) wiring diagram


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To find the RADIATOR COOLING FAN MOTOR RELAY, we need additional information about your 1995 Oldsmobile Aurora 4.0L SFI DOHC 8cyl.
Please select one of the following:

The Radiator Cooling Fan Motor Relay is located: Under hood, passenger side, upper firewall, mounted in corner in relay block
When testing a cooling fan switch, first test it with the engine cold, then test it when the engine reaches a specified temperature. Check your vehicle's service manual for more directions.
To check a switch, disconnect the connector at the switch. with an ohmmeter, check for continuity between the terminals of the switch with the switch moved to the on position and to the off position.

To find the RADIATOR COOLING FAN MOTOR RELAY, we need additional information about your 1995 Oldsmobile Aurora 4.0L SFI DOHC 8cyl.
Please select one of the following:

The Radiator Cooling Fan Motor Relay is located: Under hood, passenger side, front side of wheelwell, mounted in relay panel
The continuity through a switch can be checked with an ohmmeter. With the switch open, there should be infinite resistance. With the switch closed, there should be zero resistance. With the switch off, there should be no continuity between the terminals. With the switch on, there should be good continuity between the terminals. If the switch is activated by something mechanical and doesn't complete the circuit when it should, check the adjustment of the switch. (Some switches are not adjustable.) If the adjustment is correct, replace the switch. Another way to check a switch is to simply bypass it with a jumper wire. If the component works when the switch is jumped, a bad switch is indicated.
Voltage drop across switches should also be checked. Ideally, when the switch is closed there should be no voltage drop. Any voltage drop indicates resistance and the switch should be replaced.
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1 Answer

Car went over temp after about 30 minutes of driving. What could this be?


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