Auto Repair Manual Free Download and ReviewsFree download ebook pdf files automotive manual

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An optional auxiliary air conditioning and heating system is available. The system is a one-piece unit that is located on the LH side of the vehicle between the side windows and the floorpan, behind the rear wheel well. The driver has primary control of the auxiliary air conditioning and heating system or can transfer control to a rear passenger control panel. All of the auxiliary A/C-heater system components are serviceable from the inside of the vehicle except the lines. Component Locations The auxiliary A/C and heating system has the following features: The auxiliary A/C and heating system is functioning whenever the instrument panel mounted A/C control is in any position except OFF. The auxiliary blower motor recirculates the air inside the vehicle. Outside air is not available to the auxiliary system. Air is cooled and dehumidified by the auxiliary A/C evaporator core only if the instrument panel mounted A/C control is adjusted to a position that requires A/C compressor operation. The temperature blend door and the A/C damper door are controlled by electric actuator motors. Movement of the auxiliary temperature control between COOL and WARM causes a corresponding movement of the temperature blend door to mix air flowing through and around the auxiliary heater core. Movement of the auxiliary mode control between PANEL and FLOOR causes a corresponding movement of the A/C damper door to direct air flow between the panel (headliner) registers and the floor duct. Blower Motor The auxiliary air conditioning system contains a blower motor which is controlled by the heater blower motor switch on the front or rear auxiliary A/C control. Control Assembly The auxiliary A/C system has dual controls for the driver and rear passengers consisting of temperature, blower speed, and mode. The front auxiliary A/C control is mounted in the overhead console or the front floor console. The rear auxiliary A/C control is mounted in a separate overhead console positioned on the roof trim panel or the rear of the front floor console. Front Auxiliary A/C Control

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1. Disconnect battery ground cable. 2. Remove air cleaner outlet tube. 3. Drain cooling system and remove fan blade and fan shroud . Refer to Section 03-03. 4. Relieve fuel system pressure and disconnect fuel lines. Refer to Section 10-01. 5. Remove upper radiator hose. 6. Remove windshield wiper governor and support bracket. Refer to Section 01-16. 7. Discharge air conditioning system. Refer to Section 12-00. 8. Disconnect A/C compressor to condenser discharge line at A/C compressor and remove bolt retaining hose assembly to RH ignition coil bracket. 9. Remove 42-pin engine harness connector from retaining bracket on power brake booster . 10. Disconnect 42-pin connector and transmission harness connector. 11. Disconnect throttle valve control actuating cable from throttle body . 12. Disconnect heater water hose. 13. Remove nut retaining ground strap to RH cylinder head . 14. Remove upper stud and lower bolt retaining heater water hose to RH cylinder head and position out of way. 15. Remove heater blower motor switch resistor. 16. Remove bolt retaining RH front engine support insulator to front sub-frame . 17. Raise vehicle on a hoist. Refer to Section 00-02. 18. Drain engine oil. 19. Remove the lower splash shield. NOTE: Two through bolts for LH front engine support insulator and one through bolt for RH front engine support insulator . 20. Remove front engine support insulator through bolts. 21. Remove EGR valve to exhaust manifold tube nut from RH exhaust manifold and remove EGR valve to exhaust manifold tube . 22. Disconnect three-way catalytic converter from RH and LH exhaust manifold . 23. Lower exhaust and wire to crossmember in positions shown. 24. Position a screw-type jackstand and a block of wood under oil pan , rearward of oil drain hole. 25. Raise engine approximately 100mm (4 inches). 26. Insert two wood blocks approximately 60-70mm (2.5-2.75 inches) thick under each front engine support insulator. 27. Lower engine onto wood blocks and remove jack from under oil pan .

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NOTE: Replacement of the suction accumulator/drier is not required when repairing the air conditioning system except when there is physical evidence of system contamination from a failed A/C compressor or damage to the suction accumulator/drier. Removal 1. Disconnect battery ground cable (14301). Refer to Section 14-01. 2. Remove A/C air inlet duct (19A618) as described. 3. Drain radiator (8005) and disconnect heater water hose (18472) at the heater core (18476) in the engine compartment. Refer to Section 03-03. 4. Remove ground strap attachment (if present) from heater core tube. 5. Discharge A/C system. Refer to System Discharging and Recovery in Section 12-00. 6. Disconnect the refrigerant lines at the A/C evaporator core in the engine compartment using Spring Lock Coupling Tools 412-027 (T81P-19623-G2) (1/2 inch) and 412-040 (T85L-19623-A) (3/4 inch). Cap tubes to prevent entrance of dirt and moisture. 7. Remove heater outlet floor duct (18C433) as described. 8. Remove instrument panel (04320). Refer to Section 01-12. 9. Disconnect electrical harness connectors from heater blower motor switch resistor (18591) , blower motor (18527) and A/C electronic door actuator motor (19E616) . 10. Disconnect wiring harness retainers from A/C evaporator housing (19850). 11. Remove nut and bolt from the support bracket at left side of A/C evaporator housing . 12. Remove four nuts retaining A/C evaporator housing which are located in the engine compartment. 13. Remove A/C evaporator housing assembly. A/C Evaporator Housing Retaining Nut Locations

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On all models, the fuse panel is located under the instrument panel, left of the steering column. Fuse & Circuit Breaker Identification 1 – 15 Amp Brake & Hazard Warning Lights, Speed Control Module, Cornering Light Relay 2 – 6-Amp Circuit Breaker Windshield Wiper & Washer Pump, Interval Wiper 3 – Not Used 4 – 15 Amp Taillights, License & Parking Lights, Side Marker & Coach Lights, Cluster Illumination Lights, Radio & Clock Illuminator, A/C-Heater Illumination 5 – 15 Amp Turn Signal & Back-Up Lights, Keyless Entry Illumination, Day/Night Mirror, Turbo Overboost Buzzer 6 – 20 Amp Heated Back Light Control, Deck Lid Release, Electronic Chime Module, Lights Outage & Clock Display, Cornering & Rear Reading Lights, Tripminder, Illuminated Entry, Anti-Theft Module, Radio & Cluster Illumination 7 – 15 Amp Foglights (Turbo Only) 8 – 15 Amp Courtesy & Glove Box Lights, Key Warning Buzzer, Illuminated Entry Module, Remote Electric Mirrors, Electronic Radio & Cluster Memories, Anti-Theft Relay & Clock 9 – 30 Amp A/C-Heater Blower Motor 10 – 20 Amp

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The manual climate control system heats and/or cools the vehicle depending on the function selector switch position and the temperature selected. The function selector switch position determines heating or cooling and air distribution. The temperature control setting determines the air temperature. The heater blower motor switch varies the blower motor speed. Component Locations Air Conditioning System Components Refrigeration System Components – 5.4L And 6.8L (7.3L Diesel Similar) Refrigeration System Components The A/C refrigerant system is a clutch cycling orifice tube type. The system components are: A/C compressor. A/C clutch. A/C condenser core. A/C evaporator core. Suction accumulator/drier. Connecting refrigerant lines. The refrigeration system operation is controlled by the following: A/C evaporator core orifice. A/C cycling switch. A/C pressure cut-off switch. The refrigerant system incorporates an A/C compressor controlled by an A/C cycling switch. The A/C cycling switch senses pressure in the suction accumulator/drier to