Jeep Cherokee (XJ): Service procedures

Previous pageDiagnosis and testing

Engine diagnosis-introduction Engine diagnosis is helpful in determining the causes of malfunctions not detected and remedied by routine maintenance. These malfunctions may be classified as eithe ...

Next pageValve timing. Valve service. Piston fitting

Valve timing Disconnect the spark plug wires and remove the spark plugs. Remove the engine cylinder head cover. Remove the capscrews, bridge and pivot assembly, and rocker arms from above the ...

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Monitored systems
OPERATION There are new electronic circuit monitors that check fuel, emission, engine and ignition performance. These monitors use information from various sensor circuits to indicate the overall operation of the fuel, engine, ignition and emission systems and thus the emissions performance ...