Jeep Cherokee

 Service Manual

Transmission and transfer case » Automatic transmission-30RH » Diagnosis and testing
Gearshift cable

(1) The floor shifter lever and gate positions should be in alignment with all transmission PARK, NEUTRAL, and gear detent positions.

(2) Engine starts must be possible with floor shift lever in PARK or NEUTRAL gate positions only.

Engine starts must not be possible in any other gear position.

(3) With floor shift lever handle push-button not depressed and lever in: (a) PARK position-Apply forward force on center of handle and remove pressure. Engine starts must be possible.

(b) PARK position-Apply rearward force on center of handle and remove pressure. Engine starts must be possible.

(c) NEUTRAL position-Normal position. Engine starts must be possible.

(d) NEUTRAL position-Engine running and brakes applied, apply forward force on center of shift handle. Transmission shall not be able to shift from neutral to reverse.

Automatic transmission diagnosis

Effects of incorrect fluid level

Causes of burnt fluid

Fluid contamination

Preliminary diagnosis

Park/neutral position switch

Gearshift cable

Throttle valve cable

Road testing

Analyzing road test

Hydraulic pressure test

Air testing transmission clutch and band operation

Converter housing fluid leak diagnosis

Diagnosis charts