Filed Under (Mazda) by admin on 08-03-2016
DESCRIPTION The liquid cooling system consists of a radiator, water pump, thermostat, electric or belt-driven cooling fan,
pressure cap, heater, and various connecting hoses and cooling passages in the engine block and cylinder head. MAINTENANCE
DRAINING Remove radiator cap and open heater control valve to maximum heat position. Open drain cocks or remove plugs in bottom of radiator and engine block. In-line engines usually have one plug or drain cock, while “V” type engines have 2, one in each bank of cylinders. FLUSHING CAUTION: Some manufacturers use an aluminum and plastic radiator. Flushing solution must be compatible with aluminum. Radiator Connect flushing gun to water outlet of radiator. Disconnect water inlet hose. To prevent flooding engine, use a hose connected to radiator inlet. Use air in short bursts to prevent damage to radiator. Continue flushing until water runs clear.
Filed Under (Dodge) by admin on 27-10-2010
The heater-A/C housing assembly must be removed from the vehicle and disassembled for service access of the blower motor, blower motor wheel, heater core, evaporator coil, blend-air door, and each of the various mode control doors. WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY . REMOVAL 1. Disconnect and isolate the battery negative cable. 2. Remove the instrument panel from the vehicle. Refer to: “Body and Frame : Interior Moulding/Trim : Dashboard/Instrument Panel : Service and Repair” See: Body and Frame\Interior Moulding / Trim\Dashboard / Instrument Panel\Service and Repair 3. If the vehicle is not equipped with air conditioning, go to Step 6. If the vehicle is equipped with air conditioning, recover the refrigerant from the refrigerant system. Refer to: “Heating and Air Conditioning : Service and Repair” See: Service and Repair 4. Disconnect the liquid line refrigerant line fitting from the evaporator inlet tube. 5. Disconnect the accumulator inlet tube refrigerant line fitting from the evaporator outlet tube. Install plugs in, or tape over all of the opened refrigerant line fittings. 6. Drain the engine cooling system. Refer to: “Engine, Cooling and Exhaust : Cooling System : Service and Repair” See: Engine, Cooling and Exhaust\Cooling System\Service and Repair 7. Disconnect the heater hoses from the heater core tubes. Install plugs in, or tape over the opened heater core tubes. 8. Remove the four nuts from the heater-A/C housing mounting studs on the engine compartment side of the dash panel. 9. Remove the nut that secures the heater-A/C housing mounting brace to the stud on the passenger compartment side of the dash panel. 10. Pull the heater-A/C housing rearward far enough for the mounting studs and the evaporator condensate drain tube to clear the dash panel holes. 11. Remove the heater-A/C housing from the vehicle. DISASSEMBLY 1. Place the heater-A/C housing on a work bench, with the heater-A/C housing cover facing down. 2. Remove the two screws that secure the heater-A/C housing cover to the top of the blower motor housing cover. 3. If the vehicle is so equipped, unplug the two vacuum harness connectors from the recirculation air door actuator. 4. Unplug the vacuum harness connector from the panel-defrost door actuator. 5. Remove the four screws that secure the floor duct to the bottom of the heater-A/C housing and remove the duct from the housing.
Filed Under (Chrysler) by admin on 19-10-2010
HEATER CORE – LHD WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS. FAILURE TO TAKE THE PROPER PRE-CAUTIONS COULD RESULT IN ACCIDENTAL AIR-BAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY. DO NOT OPEN THE RADIATOR DRAIN COCK OR DISCONNECT COOLANT HOSES WHEN THE SYSTEM IS HOT AND UNDER PRESSURE. SERIOUS BURNS FROM COOLANT CAN OCCUR. REMOVAL 1. Disconnect the negative battery cable. 2. Drain the cooling system. Refer to: “Engine, Cooling and Exhaust : Cooling System : Service and Repair” See: Engine, Cooling and Exhaust\Cooling System\Service and Repair 3. Evacuate the refrigerant system. Refer to: “Heating and Air Conditioning : Service and Repair” See: Service and Repair 4. Remove the instrument panel. Refer to: Body and Frame, Interior Trim, Dashboard/Instrument Panel, Service and Repair, Instrument Panel Service Procedures, Instrument Panel Assembly Procedures, See: Body and Frame\Interior Moulding / Trim\Dashboard / Instrument Panel\Service and Repair\Instrument Panel Service Procedures\Instrument Panel Assembly Replacement 5. Remove the refrigerant lines from the evaporator connections. 6. Remove the heater core coolant supply hoses from the heater core. 7. Working from inside the engine compartment, remove the A/C-heater housing retaining fasteners from the bulk head. 8. Remove the A/C-heater housing drain tube. Remove the spring clip from the A/C-heater housing and body attachement point. 9. Remove the A/C-heater housing retainer bolts. 10. Disconnect the electrical connectors from the A/C-heater housing. 11. Remove the A/C-heater housing from the vehicle and place the assembly on a bench. 12. Dissemble the heater core. 13. Remove the heater core from the housing. INSTALLATION Install heater core into HVAC housing. Assemble the HVAC housing. Take the HVAC housing from the work bench and place into vehicle. Install HVAC housing to vehicle. Install underhood HVAC housing drain tube to housing and install spring retainer clip. 6. Install electrical connectors to HVAC housing. 7. Install heater supply hoses to heater core connections. 8. Install refrigerant lines to the evaporator. 1. 2. 3. 4. 5.
Filed Under (BMW) by admin on 09-09-2010
Remove alternator drive belt, refer to Engine, Cooling and Exhaust – Engine – Drive Belts, Mounts, Brackets and Accessories – Drive Belt – Service and Repair – Procedures See: Engine/Drive Belts, Mounts, Brackets and Accessories/Drive Belt/Service and Repair Note: Drain and dispose of coolant. Installation: Replace seal. Tightening Torque, refer to Specifications – Mechanical. See: Specifications Vent cooling system and check for leaks, refer to Engine, Cooling and Exhaust – Cooling System – Service and Repair – Procedures. See: Service and Repair M52/S52 The water drain plug is located on the exhaust side between cylinders 4 and 5 in the engine block (illustration). M52TU / M54 / M56 The water drain plug is located on the exhaust side on cylinder 2 in the engine block. Release belt pulley. Release water pump. 2001 BMW 330xi (E46) AWD Sedan L6-3.0L (M54) Tighten two screws (M6) into thread of water pump and water pump out of timing case. Installation: Replace O-ring and coat with coolant as anti-friction agent.
Filed Under (BMW) by admin on 05-09-2010
Only open sealing cover on expansion tank when engine has cooled down. Drain coolant, refer to Cooling System – Service and Repair – Procedures See: Service and Repair Remove fan cowl, refer to Fan Shroud – Service and Repair – Procedures See: Fan Shroud/Service and Repair Note: When removing the fan cowl, note the engine variant. Air conditioner Disconnect plug connection on temperature switch. Disconnect upper water hose. Disconnect lower water hose. 2000 BMW Z3 Roadster 2.5 (E36/7) L6-2494cc 2.5L DOHC (M52 TU) Disconnect expansion hose. Automatic transmission Remove transmission oil cooler lines, catch transmission oil as it escapes and dispose of correctly. Installation: Check transmission oil level and correct if necessary, refer to Transmission and Drivetrain. Check connection for leaks. Unfasten left and right radiator mounts by pressing detent down with screwdriver. Sectional view of radiator mount: 1. Screwdriver 2. Front trim 3. Retaining lug for radiator