Jeep Cherokee

 Service Manual

Transmission and transfer case » AW-4 automatic transmission » Diagnosis and testing
Time lag test analysis

If engagement time is longer than specified for D range, check for the following:

•  shift cable misadjusted
•  line pressure low
•  forward clutch worn
•  overdrive clutch worn or damaged

If engagement time is longer than specified for Reverse, check for the following:

•  shift cable misadjusted
•  line pressure low
•  direct clutch worn
•  first/reverse brake worn
•  overdrive clutch worn or damaged

General diagnosis information

Effects of incorrect fluid level

Causes of burnt fluid

Fluid contamination

Preliminary inspection and adjustment

Manual shifting test

Hydraulic pressure test

Pressure test analysis

Time lag test

Test procedure

Time lag test analysis

Service diagnosis

Transmission solenoid testing

Park/neutral position switch

Gearshift cable

Throttle valve cable

Speed sensor testing

Flow testing transmission main cooler

Torque converter stator clutch inspection