Jeep Cherokee (XJ): Lubrication and maintenance
Jeep Cherokee (XJ) 1984 - 2001 Service Manual > Lubrication and maintenance
Service procedures
RECOMMENDATIONS
When service is required, DaimlerChrysler Corporation
recommends that only Mopart brand parts,
lubricants and chemicals be used. Mopar provides
the best engineer ...
Other materials:
Powertrain control module (PCM)
DESCRIPTION
The Powertrain Control Module (PCM) is located
in the engine compartment (Fig. 1). The PCM is
referred to as JTEC.
OPERATION
The PCM operates the fuel system. The PCM is a
pre-programmed, triple microprocessor digital computer.
It regulates ignition timing, air-fuel ratio,
emis ...