Jeep Cherokee (XJ): Diagnosis and testing
Jeep Cherokee (XJ) 1984 - 2001 Service Manual > Transmission and transfer case > Automatic transmission-30RH > Diagnosis and testing
- 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
Gearshift mechanism. Converter drainback valve. Brake transmission shift interlock
mechanism
Gearshift mechanism
DESCRIPTION
The shift mechanism is cable operated and provides
six shift positions. The shift indicator is located
on the console next to the gear shift. The shift positions
ar ...
Automatic transmission diagnosis. Effects of incorrect fluid level. Causes of burnt fluid
Automatic transmission diagnosis
Automatic transmission problems can be a result of
poor engine performance, incorrect fluid level, incorrect
linkage or cable adjustment, band or hydraulic
control ...
Other materials:
Modes of operation
OPERATION
As input signals to the Powertrain Control Module
(PCM) change, the PCM adjusts its response to the
output devices. For example, the PCM must calculate
different injector pulse width and ignition timing for
idle than it does for wide open throttle (WOT).
The PCM will operate in two ...