Jeep Cherokee (XJ): Diagnosis and testing

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Cooling system DESCRIPTION The cooling system regulates engine operating temperature. It allows the engine to reach normal operating temperature as quickly as possible, maintains normal operatin ...

Next pageOn-board diagnostics (OBD). Accessory drive belt diagnosis. Preliminary checks

On-board diagnostics (OBD) COOLING SYSTEM RELATED DIAGNOSTICS The Powertrain Control Module (PCM) has been programmed to monitor the certain following cooling system components:  If the en ...

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Low pressure cycling clutch switch. Refrigerant system leaks. Vacuum system
Low pressure cycling clutch switch Before performing diagnosis of the low pressure cycling clutch switch, be certain that the switch is properly installed on the accumulator fitting. If the switch is too loose it may not open the Schrader-type valve in the accumulator fitting, which will prevent ...