Comanche 2WD L4-150 2.5L VIN H TBI (1988)
The new valve springs can be removed/ installed with service tool J-5892B. Part number for this tool is 8980 002 694. The tool is available from your
PDC as part of the special tool program.
4.0L ENGINE
The 4.0L engine is basically unchanged for the 1988 model year. Refer to the M.R. 277 and the Mot. I-6 manuals for necessary specifications and
service information.
EMISSION MAINTENANCE TIMER AND INDICATOR LIGHT
1988 Comanche 49-State and Canada models are equipped with an emission maintenance timer and indicator light. The timer and light are used to alert
the owner when oxygen sensorPCV valve replacement and other scheduled emission maintenance is required.
The indicator light is located in the instrument cluster. The timer is mounted on the dash panel at the passenger side of the vehicle.
The timer (C) is operated by the ignition system. It activates (flashes) the indicator light when vehicle mileage reaches the scheduled maintenance
interval of 133,000 kilometers (82,500 miles).
Emission Maintenance Timer Service
The life cycle of the timer coincides with the emission maintenance interval of 133,000 kilometers (82,500 miles). The timer can not be reset after
reaching this mileage interval. The timer can only be replaced or disconnected.
NOTE:
The oxygen sensor and timer are interdependent. If the timer should fail prematurely, the oxygen sensor must be replaced along with the timer.
This is important in preserving the correct sensor replacement interval and ensuring proper engine performance.
