Question about 2002 Jeep Grand Cherokee

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Radiator fan relay vs cooling fan

I had the radiator fan relay replaced in June because it was draining my battery. Now, the "cooling" fan is running slow and causing my car to overheat. Are these the same problem -- meaning, should the dealership have fixed this all at once? or do I have a legitimate second problem? I just don't want to shell out $400 for this new fan when I already spent $800 on the new relay.

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  • lisa731 Dec 08, 2008

    So...is it fair for me to ask if the dealership can pay for the new relay since its less than 6 months old?!? THANKS!!

  • calvin May 21, 2013

    they have 2 speed fans runs bout 30% in low and 100% on hi

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This sounds like the cooling fan motor was the real problem, when it does this the motor is partially shorted, this overheats the new fan relay and will burn it out, I think most likely they should have caught this when the fan relay was replaced, now the motor and the relay should be replaced, as the new relay may be damaged. Also make sure the electrical connector to the fan motor is not burnt, if it is then replace it along with the motor.

Posted on Dec 08, 2008

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The fan relay is likely shorted and keeping the fan motor energized; to check this you can remove the relays from the fuse panel... remove the cooling fan rely from the underhood PDC (Power Distribution Center). Fot this and additional fuse details, check this link: wjjeeps.com/fuses.htm

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1 Answer

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93Toyota Corolla DX > test the Radiator Fan and replacing The A/C


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RADIATOR REPLACEMENT


  • At the time of installation, please refer to the following items.
  • Start the engine, and check for coolant and A/T fluid leaks.
  • Check the A/T fluid level.
  1. Drain engine coolant.
  2. Canada: Disconnect relay block (for daytime running light system) from battery hold-down clamp.
  3. Disconnect upper radiator hose from radiator.
  4. Disconnect lower radiator hose from water inlet pipe.
  5. Disconnect A/T oil cooler hoses from oil cooler pipes.
  6. Disconnect No.1 and No.2 cooling fan connectors.
  7. Disconnect No.1 Engine Coolant Temperature (ECT) switch wire connector.

  8. Remove radiator and cooling fans assembly.
    1. Remove the 2 bolts and 2 upper supports. Torque: 12.8 Nm (9 ft. lbs.)
    2. Lift out the radiator, and remove the radiator and cooling fans assembly.
    3. Remove the 2 lower supports.
  1. Remove A/T Oil cooler hoses from radiator.
  2. Remove lower radiator hose from radiator.
  3. Remove No.1 ECT switch.

  4. Remove No.1 cooling fan from radiator. Remove the 2 bolts and cooling fan. Torque: 5.0 Nm (44 inch lbs.)
  5. Remove No.2 cooling fan from radiator. Remove the 3 bolts and cooling fan. Torque: 5.0 Nm (44 inch lbs.)
INSTALLATION
Installation is in the reverse order of removal.

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