GM Service Manual Online
For 1990-2009 cars only

Heater Outlet Hose Contacts or Rubs Generator (Reroute and Tie Strap Hose/Replace Hose if Necessary)

Subject:Heater Outlet Hose Contacts or Rubs Generator (Reroute and Tie Strap Hose/Replace Hose if Necessary)

Models:1999-2000 Chevrolet and GMC C6-7 H-Series Conventional Medium Duty Models
With Gasoline Engine (VINs B, D -- RPOs L21, LP4)



Condition

Some drivers may comment that the heater outlet hose is routed too close to the generator or that the hose contacts and rubs on the generator.

Correction


Object Number: 774359  Size: MH

Inspect the heater outlet hose (2) routing for rub marks or possible damage. If the hose shows no evidence of damage, secure the outlet hose away from the generator using two nylon tie straps (1), P/N 12337820, or equivalent. This will create the necessary additional hose clearance at the generator.

If the heater outlet hose shows evidence of damage, replace the hose using P/N 15713862. This service hose is approximately 1105 mm (44 in) long. The hose will have to be cut down to a length of 890 mm (35 in) before installation. After installation, secure the hose with tie straps as described above. Refer to the HVAC subsection of the applicable Service Manual for heater outlet hose replacement procedures.

Parts Information

Part Number

Description

Qty

12337820

Strap Asm.

2

15713862

Hose-Htr Otlt

1

Parts are currently available from GMSPO.

Warranty Information

For vehicles repaired under warranty, use:

Labor Operation

Description

Labor Time

D2775

Hose-Heater Outlet - Replace

(with A/C)

0.2 hr*

D2745

Hose-Heater Outlet - Replace

(w/o A/C)

0.2 hr*

Add

To replace hose if necessary

0.4 hr

* Time reflects inspection and tie strapping of hose with no replacement.