F 350 2WD Pickup V8-7.3L DSL (1988)
Housing Assembly HVAC: Customer Interest
Heater - Insufficient Heat Inside of Vehicle
Article No. 88-9-10
HEATER - INSUFFICIENT HEAT - VEHICLES WITH OR WITHOUT AIR CONDITIONING BUILT BEFORE 4/01/88
LIGHT TRUCK:
1987-88 F SERIES, BRONCO
This article is being republished in its entirety to expand the model year and service procedure to include vehicles that do not have air conditioning.
ISSUE:
Insufficient heat inside of vehicles equipped with or without air conditioning may be caused by the heater air baffle missing from the plenum
chamber. The heater air baffle prevents cold air from leaking in around the heater core.
ACTION:
To correct this, check to see if the heater air baffle is present. If the heater air baffle is not present, install a heater air baffle using the
following service procedure.
FIGURE 9
1.
Remove the heater core access cover to see if the heater air baffle is present. If missing proceed to Step 2.
NOTE:
IF THE TEMPERATURE BLEND DOOR SHAFT CAN BE SEEN NEXT TO THE HEATER CORE, A HEATER AIR BAFFLE
NEEDS TO BE INSTALLED.
2.
Remove the heater core.
3.
Remove the heater core face gasket, Figure 9.
4.
Install the heater air baffle, (E7TZ-18D416-A) by inserting the pin on the bottom of the baffle into the lower surface of the plenum chamber,
Figure 9.
5.
Reinstall the heater core face gasket.
6.
Reinstall the heater core.
7.
Apply a bead of Ford Silicone Sealer, (D6AZ- 19562-AA) around the heater core access cover.
8.
Reinstall the heater core access cover.
