Wagoneer L6-242 4.0L VIN L FI (1989)
SERVICE MANUAL REVISION
This bulletin is being issued to revise the A/C System Operation Chart for 1987 through 1990 MJ/XJ vehicles equipped with Air Conditioning.
This revision involves the position of the heater water valve. (The heater water valve is OPEN when the mode lever is in the VENT position and the
temperature lever is not in the cool position.)
Please insert the enclosed page 24-29 in your 1990 Jeep Service Manual (Publication No. 81-370-0145) and make the corrections shown in Figure 1 in
your Jeep Service Manuals as listed in the following chart:
