Heater Water Hoses

Removal

Refer to Section 12-02 for heater hose service procedures.

1. Drain coolant from cooling system.

2. Loosen clamps and remove heater water hoses (18472) from vehicle.

3. Cut a new length of heater water hose to dimension of removed heater water hoses.

Installation

1. Route heater water hoses.

2. Connect heater water hose to fittings.

3. Fill and bleed cooling system. Refer to Section 03-03 in the Powertrain, Drivetrain Manual.

4. Check for coolant leaks and for proper operation of system.

   Refrigerant and Heater Line Routing, 5.8L (351 CID) MFI Engine

   

   Item	Part Number	Description
   1	—	Existing Screw (Part of Cowl Top Outer Panel)
   2	19D734	A/C Manifold and Tube
   3	19B632	A/C Accumulator Tube Support Clip
   4	—	Dipstick (Part of 6007)
   5	9D930	Wiring Assy
   6	19703	A/C Compressor
   7	19618	Thermactor System
   8	18472	Heater Water Hose
   9	19850	A/C Evaporator Housing
   10	19B679	A/C Hose Clamp
   11	—	Wiring (Part of 14401)
   12	376240-S100	Hose Clamp (2 Req'd)
   13	8146	Fan Shroud
   14	19835	Condenser to Evaporator Tube
   15	—	U-Nuts (Part of 8146)
   16	19A566	A/C Vacuum Reservoir Tank and Bracket
   17	—	Tag — A/C Service Instructions (Part of 19C808)
   18	8005	Radiator

   Refrigerant and Heater Line Routing, 7.3L (444 CID) Diesel Engine

   

   Item	Part Number	Description
   1	—	Existing Screw (Part of Cowl Panel)
   2	19B632	A/C Accumulator Tube Support Clip
   3	19D734	A/C Manifold and Tube
   4	19B679	A/C Hose Clamp
   5	389766-8287	Heater Hose Connection
   6	18599	Hot Water Heater Elbow Connection
   7	19835	Condenser to Evaporator Tube
   8	18472	Heater Water Hose
   9	18472	Heater Water Hose
   10	18472	Heater Water Hose
   11	—	Locator (Part of 14401)
   12	19850	A/C Evaporator Housing
   13	—	Wiring (Part of 14401)
   14	—	Existing Retainer (Part of 19850)
   15	19E561	A/C Cycling Switch
   16	—	A/C Service Instructions Tag (Part of 19C808)
   17	—	Junction (Part of 18C266)
   18	—	Plate (Part of 6007)
   19	389772-S100	Clamp
   20	—	Connector (Part of 8005)
   21	8005	Radiator
   22	N62332	U-Nut
   23	180331	Bracket Assy
   24	N606677-S2	Bolt
   25	—	Ear (Part of 10346)
   A	—	Tighten to 1.4-2.0 Nm (12-18 Lb-In)
   B	—	Tighten to 7-11 Nm (62-97 Lb-In)

   Refrigerant and Heater Line Routing, 7.5L (460 CID) MFI Engine

   

   Item	Part Number	Description
   1	19703	A/C Compressor
   2	19D734	A/C Manifold and Tube
   3	390761-S100	Clamp (4 Req'd)
   4	19835	Condenser to Evaporator Tube
   5	18472	Heater Water Hose (for Vehicles with Manual Transmission) (2 Req'd)
   6	19930	A/C Blower Housing
   7	19B632	A/C Accumulator Tube Support Clip (2 Req'd)
   8	N805334-S2	Bolt
   9	18472	Heater Water Hose (for Vehicles with E4OD Transmission)
   10	8146	Fan Shroud
   11	376240-S100	Hose Clamp Assy (2 Req'd)
   12	8548	Water Bypass Tube
   13	8005	Radiator