Rampage L4-135 2.2L (1983)
Heater Hose: Customer Interest
Heater - Insufficient Output
Models
All 1981, 1982 & 1983 Front Wheel Drive Equipped with 2.2 Liter (135 Cu. In...) Engine
Subject
Insufficient Heat Due to Slow 2.2 Liter Engine Warmup
Index
HEATERS & AIR CONDITIONING
Date
March 9, 1983
No.
24-02-83
P-708-C
SYMPTOM/CONDITION
Complaints of slow engine warmup on subject model vehicles resulting in low heater and defrost output temperatures, may be resolved by following
repair procedure and installing parts listed below. Parts must be ordered separately.
Parts Required:
Qty
Name
Part Number
1
Clamp
870469
2
Clamps
4041608
1
Cap
2128425
1
Gasket
4179895
1
Thermostat
4105768
1
"T" Connector
4266410
REPAIR PROCEDURE
The repair consists of relocating the heater return hose to allow the engine coolant to bypass the radiator and decrease the warm-up time. A new
improved thermostat will also be required for a vehicle built prior to March 1, 1983.
1.
Completely drain cooling system.
NOTE:
Removal of the coolant control EGR switch from the top of the thermostat housing will allow air to enter the cooling system to aid in
more complete draining.
2.
Replace old thermostat and gasket using new thermostat PN 4105768 and gasket PN 4179895.
NOTE:
Vehicles built after March 1, 1983 will have the new thermostat already installed.
3.
Disconnect heater return hose from radiator.
4.
Position cap PN 2128425 over radiator heater return nipple and secure with clamp PN 870469.
