Need to replace the Relay,a Radiator Fan Assembly,the Fan Clutch and a Serpentine Belt can u tell me how to do this?
SOURCE: radiator Fan relay
Locate the relay in the under hood relay center remove it and swap it with the A/C relay or a relay that looks the same. If the fan still doesn't come on, the fan is not working anymore. If it does come on, go to the parts store and replace the relay. You can use a jump wire to the hot side of the fan from the pos side of the battery to see if the fan comes on. Also run a jump ground. Disconnect the harness to the fan so you don't back feed the ECM. Just use a couple of flat female blade connectors and wires to jump to the battery to test fan. $600.00 is way too much to replace the fan. You can find a good replacement fan assy. at the local wrecking yard for cheap. They work out just fine.
SOURCE: radiator fan not working replaced relay,temp
Check the wiring from the relay to the fan motor, and check the wiring from the fuse block. Basically check all wires that supply power to the fan motor, use a volt meter. Fan Relay (behind headlight, under battery) on the 2001 GC 4.0L are a piece of ****, I change mine almost yearly. The problem is their location, a high heat area prone to the elements. I understand that 2002 and newer, the location was changed and the problem solved. Relay might close the circuit when cold or at reasonable temps, but might open a circuit when it heats up, causing the problem.
SOURCE: radiator fan not working replaced relay,temp
You didn’t mention replacing the temperature sensor located
on the block in the path of the ‘cooled’ coolant.
I can’t tell you any closer where to look for it since you
didn’t specify which engine you have.
This device is a solid state item called a thermistor.
With the air temperature around 77 degrees F and a 'cold' engine, it should
measure about 10,000 Ohms and hot, around 1,200 Ohms while disconnected from
its mating connector.
With the ignition on, and the connector disconnected from
the sensor, you should measure about 5 volts coming from the ECU.
If this has failed, the ECU is not getting the right info
back from the sensor and doesn’t know if the fan is needed or not.
SOURCE: Radiator fan not operating, radiator fan relay
Jeep WJ Grand Cherokee
The Radiator Cooling Fan Relay Switch for a 2003 Jeep Cherokee is located behind the bumper on the passenger side underneath the headlight.
There are two ways of accessing it:
1. Remove the bumper.
2. Remove the pasenger side headlight assembly and cut a hole in the plastic underneatch click on the link below for more info.
The relay seems to be a common replacement item for this vehicle. One cause of the failure is that the relay overheats, per a note inserted in the replacement part packaging.
The cutout method is used by dealers. In one vehicle, the relay failed again after 40,000 miles or so. While replacing the relay it was noted that it was secured by one screw and it was not tight. This did not provide thermal contact with the chassis which helps cool the relay. The cause of the second failure was likely due to improper installation. Trying to work through a cutout would seem to make it difficult to get both screw isntalled securely. Furthermore, the new parts today use steel pop rivets for installation to help guarantee it will maintain proper thermal contact with the chassis. The pop rivets cannot be isntalled without removing the bumper.
It is not difficult to remove the bumper and grill to get to the relay. It sounds like a big deal but you are talking a half dozen screws and less than a dozen plastic rivets. The act of cutting a hole and working in cramped quarters has to be more difficult and it does not provide as quality a job.
Hope help with this (remember rated this post).
SOURCE: radiator fan motor on 2003 Jeep Grand Cherokee
I hope that you haven't went out and bought a whole new assembly due to the other poster's response. Yes you can just replace the motor otherwise why would you be able to buy the motors separately. There's usually 3 bolts that hold the fan shroud in that you have to remove along with the electrical plug. It takes some manipulation to get the entire fan/shroud assembly out (it helps to have someone underneath the vehicle guiding it) but once out you will see a clip over the top of the fan. It's kind of a challenge to get off but using a hammer and a flat head screwdriver you can work it off. Be aware that you have to put the clip back on so don't pry it off and ruin it....just kind of chisel it off. Once off, the fan blade comes off with a little effort. There's your exposed motor. Take off the 3 bolts and pull out the wires and replace it with your new motor. I hope this helps others....I couldn't find this information anywhere and figured it out along the way.
FAN NOT WORKING
It
can be issue with faulty motor or its faulty fan control relay.
Bother
are to be inspected.
Test
volt at fan relay and fan motor.
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For
more help, I suggest you to go through the troubleshooting links
mentioned below:-----
Click
the link below: ------
How to replace Cooling Fan on Acura Car models?
http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-cooling-fan-on-acura-car.html
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OBD Code P1490 low speed fan relay ckt open-short
http://schematicsdiagram.blogspot.com/2012/11/obd-code-p1490-low-speed-fan-relay-ckt.html
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Engine cooling components working?
http://repairhelpcenter.blogspot.com/2011/11/engine-cooling-components-working.html
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How does Vehicles Engine cooling system works?
http://repairhelpcenter.blogspot.com/2011/11/how-does-vehicles-engine-cooling-system.html
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Hyundai Sonata cooling fan not working
http://schematicsdiagram.blogspot.in/2012/02/hyundai-sonata-cooling-fan-not-working.html
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Fuel pump relay and cooling fan relay troubleshooting on
1997 ford thunderbird?
http://repairhelpcenter.blogspot.com/2011/10/fuel-pump-relay-and-cooling-fan-relay.html
--------------
Fan belt routing diagram for 2004 Volkswagen Jetta?
http://carbeltrouting.blogspot.com/2011/12/fan-belt-routing-diagram-for-2004.html
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Timing belt, drive belt, serpentine belt, accessory belt,
fan belt, engine belt routing diagrams for all types of car models?
http://carbeltrouting.blogspot.in/2012/02/timing-beltdrive-beltserpentine.html
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A/C, heater, defroster fan, not working?
http://technoanswers.blogspot.in/2012/02/ac-heater-defroster-fan-not-working.html
---------
Blower fan not running on Isuzu trooper?
http://technoanswers.blogspot.in/2012/02/blower-fan-not-running-on-isuzu-trooper.html
---------
How to replace blower motor fan assembly on 2000 GMC
Yukon?
http://repairhelpcenter.blogspot.com/2012/01/how-to-replace-blower-motor-fan.html
----------
Heater AC or defroster fan not working on KIA?
http://technoanswers.blogspot.in/2012/02/heater-ac-or-defroster-fan-not-working.html
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These
will help.
Thanks.
Physically look in the radiator under the cap for coolant level, and check the valve in the cap for sticking. If air is present in the radiator it can't get out, and more coolant can't get in,(from the overflow). Either clean the cap or replace it and check that it is the CORRECT cap.
Radiator fins dirty, clean with a strong stream of water, not high pressure water.
Radiator clogged, have it boiled out, or replace.
Thermostat stuck open or shut, replace it.
Water pump worn out, can no longer move enough coolant, replace it.
Fan shroud broken or missing....
Electric Fan(s) not working, Check the fan, relay, fuse and engine temperature sensor's.
Belt driven fan, belt slipping, fan clutch is bad, fan blades have flattened out.
Air dam under front bumper is gone, loose, or broken. It actually has a purpose other than scraping on the driveway or curbs. It forces air up into and thru the condenser and radiator. If it
Physically look in the radiator under the cap for coolant level, and check the valve in the cap for sticking. If air is present in the radiator it can't get out, and more coolant can't get in,(from the overflow). Either clean the cap or replace it and check that it is the CORRECT cap.
Radiator fins dirty, clean with a strong stream of water, not high pressure water.
Radiator clogged, have it boiled out, or replace.
Thermostat stuck open or shut, replace it.
Water pump worn out, can no longer move enough coolant, replace it.
Fan shroud broken or missing....
Electric Fan(s) not working, Check the fan, relay, fuse and engine temperature sensor's.
Belt driven fan, belt slipping, fan clutch is bad, fan blades have flattened out.
Air dam under front bumper is gone, loose, or broken. It actually has a purpose other than scraping on the driveway or curbs. It forces air up into and thru the condenser and radiator. If it
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