Mountaineer V8-302 5.0L VIN P EFI (1998)
e.
Repair as needed.
Other
^
Check for proper operation of the heater water valve. Visually inspect vacuum hose for kinks, leaks, or disconnects.
^
Temperature differentials between panel and floor vents in mix modes and temperature setpoints that are not at full cool. Setpoints not at full cool or
full heat may exist and are a normal concern and not repairable.
SERVICE PLENUM TIPS
This procedure applies to 1995-1999 Explorers when service of the blend door/plenum or actuator is concerned. The following applies to
EATC-equipped vehicles:
1.
1998 and 1999 blend door actuators are electronically different than 1995-1997 blend door actuators and cannot be interchanged.
2.
The service plenum for 1995-1999 model year vehicles is the 1999 model year Plenum (F87Z-18471-DA).
3.
The service plenum may be different from the plenum being removed from the vehicle in the following ways:
a.
The service plenum has the blend door actuator mounting bracket molded in the plenum. If you have a new or original actuator with the
mounting bracket attached, remove the bracket and discard.
b.
The service plenum will have a hole about 19 mm (3/4") diameter near the heater core cover. This hole is the location for the aspirator tube
connection on 1999 model year vehicles. If the service plenum is installed on an earlier model, this hole should be plugged.
c.
The service plenum has a nylon blend door which is stronger than the ABS plastic door installed on vehicles built through April 1998.
4.
When installing actuators on the plenum, there will be pressure on the door if the actuator is driven to full heat or full cold position. This is
necessary to seat the door and is not the cause of blend door breakage that occurred on earlier vehicles. Driving the actuator to a midrange position
will allow easy installation of the actuator.
PART NUMBER
PART NAME
F87Z-18471-DA
A/C Plenum
OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS: INFORMATION ONLY
OASIS CODES: 208000, 208100, 208200, 208300, 208999
