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Jeep Truck
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1988
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Cherokee 2WD L4-150 2.5L VIN H TBI
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Repair and Diagnosis
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Powertrain Management
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Tune-up and Engine Performance Checks
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Idle Speed
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Adjustments
Idle Speed: Adjustments
Idle speed
adjustment is electronically controlled by the Idle Speed Actuator (ISA) motor and adjustment is not required.