GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Isuzu 🢒 2002 🢒 Isuzu T-Series (Truck Line C) 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 Heater Inlet Pipe Replacement

Removal Procedure
  1. Drain the engine coolant. Refer to Cooling System Draining and Filling in Engine Cooling.
  2. Remove the inlet hose clamp to the engine pipe.

    3. Object Number: 392201 Size: SH
  3. Remove the hose clamps from the heater core.
  4. Remove the inlet pipe mounting bolts, washers and nuts.
  5. Remove the inlet pipe clamp on the frame.

    6. Object Number: 220038 Size: SH
  6. Remove the inlet pipe (5).

Installation Procedure

    Object Number: 220038 Size: SH

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  1. Push the pipe into the heater inlet hose connector (1) until the retainer locking tabs lock (2, 3). Pull back on the hose to check for proper engagement.

    2. Tighten
    Tighten the quick connect heater inlet connector to 35 N·m (26 lb ft).

  2. Install the inlet pipe.

    3. Object Number: 392201 Size: SH
  3. Install the pipe clamps on the frame.
  4. Install the inlet pipe mounting bolts, washers and nuts.

    5. Tighten
    Tighten the nuts to 23 N·m (17 lb ft).

  5. Install the inlet hose clamp from the heater core.
  6. Install the inlet hose clamp to the engine pipe.
  7. Fill with engine coolant. Refer to Cooling System Draining and Filling in Engine Cooling.