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(5) Remove both coolant lines from vehicle. INSTALLATION (1) Install both flexible coolant lines to the supple- mental cabin heater and install the clamps. (2) Install the flexible coolant lines to the coolant pipes and install the clamps. (3) Install the supplemental cabin heater into the vehicle (Refer to 24 - HEATING & AIR CONDITION- (4) Lower the vehicle. COOLING - STANDARD PROCEDURE). (6) Verify operation of the supplemental cabin heater. HEATER PIPES REMOVAL WARNING: Allow the engine cooling system to cool NOTE: Steel heater lines from engine compartment (1) Drain the engine cooling system (Refer to 7 - COOLING - STANDARD PROCEDURE). (2) Remove clamps from both the EGR cooler and the lower heater port. Separate hoses from the mat- (3) Remove retaining nut from heater line under hood bracket. (4) Raise and support the vehicle. Take note of the location of the flexible section of the cabin heater (5) Remove the clamps from cabin heater lines to the rubber connection nearest the tubes. Separate (6) Remove the cabin heater intake pipe from the heater unit (Refer to 24 - HEATING & AIR CONDI- HEATER/INLET HOSE - REMOVAL) (Fig. 7). (7) Remove heater pipe assembly retaining screws and remove assembly from vehicle. INSTALLATION (1) Position the heater pipe assembly and install the retaining screws. (2) Install the heater unit intake pipe to the heater unit (Refer to 24 - HEATING & AIR CONDI- (3) Connect heater hoses to the heater unit and tighten the clamps. (4) Install heater unit intake pipe to heater unit (Refer to 24 - HEATING & AIR CONDITIONING/ (5) Lower the vehicle. heater line under the hood bracket. (7) Connect the heater lines to the heater hoses at the heater core and EGR port. Position spring clamps (8) Fill the engine cooling system (Refer to 7 - COOLING - STANDARD PROCEDURE). RS CABIN HEATER 24 - 121 HEATER HOSES (Continued) |