How to Troubleshoot the Air Conditioning in a Jeep Grand Cherokee

Written by ehow cars editor
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Air conditioning problems can unfortunately be quite common in vehicles, both new and old. Often the problems can be easy to diagnose and easy to fix. Save yourself much time and money avoiding costly trips to the dealer or a mechanic by learning to troubleshoot air conditioning problems in your Jeep Grand Cherokee.

Skill level:
Challenging

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Things you need

  • Screwdriver

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Instructions

  1. 1

    Start the engine and adjust the climate controls. If they seem to work fine but have effect on the air then the problem is probably a simple blown fuse. If the controls do not work correctly then the problem is probably with the control panel. If you cannot hear the sound that accompanies turning the air from low to high, then the problem is likely with the blower motor.

  2. 2

    Replace a blown fuse easily. There are three fuse boxes in a Jeep Grand Cherokee, and the one that powers the air conditioning is found under the instrument panel to the left side and slightly below the steering column. The correct fuse is the red number five.

  3. 3

    Disconnect the air bag system first before gaining access to the control panel. Do this by disconnecting the black negative battery cable and waiting at least two minutes.

  4. 4

    Remove the center section of the instrument panel on the dashboard that surrounds the air conditioning and heating controls. Unscrew the four screws that hold the climate control assembly into place. Pull the controls out.

  5. 5

    Get to the blower motor in a Grand Cherokee by first disabling the airbags. Unscrew the glove box and remove it. Unscrew and remove the blower motor wire harness found directly behind the blower motor. Unscrew three screws holding the blower motor into place and then remove the motor.

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