GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2007 🢒 Yukon - 4WD 🢒 Bulletins 🢒 LY2, LY5, LY6, LH6, L76, LMG, LC9, L92, Coolant or Rubber Type Odor, Loss of Engine Coolant and/or Overheat Condition (Add Second Clip to Upper Radiator Hose)

LY2, LY5, LY6, LH6, L76, LMG, LC9, L92, Coolant or Rubber Type Odor, Loss of Engine Coolant and/or Overheat Condition (Add Second Clip to Upper Radiator Hose)

Subject:LY2, LY5, LY6, LH6, L76, LMG, LC9, L92, Coolant or Rubber Type Odor, Loss of Engine Coolant and/or Overheat Condition (Add Second Clip to Upper Radiator Hose)

Models:2007 Cadillac Escalade, Escalade ESV, Escalade EXT
2007 Chevrolet Avalanche, Suburban, Tahoe
2007 GMC Yukon, Yukon XL, Yukon Denali, Yukon Denali XL
with 4.8L, 5.3L, 6.0L or 6.2L VORTEC GEN IV V-8 Engine (VINs C, J, K, M, Y, 0, 3, 8 -- RPOs LY2, LY5, LY6, LH6, L76, LMG, LC9, L92)
with Active Fuel Management™ and E85 Flex Fuel


Condition

Some customers may comment on a coolant or rubber type odor. There may be a loss of coolant and/or overheat condition. Upon further investigation, the technician may find that the radiator vent inlet hose is close to the drive belt idler pulley.

Correction

    Object Number: 1823093 Size: SH
  1. If the radiator vent inlet hose is close to the drive belt idler pulley, add an additional clip in a new location. Refer to the above graphic illustration.

    2. Object Number: 1823094 Size: SH
  2. Add a second radiator vent inlet hose clip, P/N 15045503, to the upper radiator hose. Position the new clip approximately 31 mm (1 in) from the air cleaner resonator outlet duct assembly and secure the radiator vent inlet hose to the new clip. Refer to the above graphic illustration.

    3. Important: If the radiator vent inlet hose has to be replaced, Do Not use the old clamps and clips.

  3. If the radiator vent inlet hose is close to the drive belt idler pulley and the hose shows wear marks and/or is cut by the drive belt idler pulley, replace the hose with P/N 15788670. Follow the repair procedure above to add a second radiator vent inlet hose clip in a new location. Refer to the Radiator Vent Inlet Hose Replacement procedure in SI.

Parts Information

Part Number

Description

Qty

15045503

Clip, Radiator Vent Inlet Hose

1

15788670

Hose, Radiator Inlet Vent

1

Warranty Information

For vehicles repaired under warranty, use:

Labor Operation

Description

Labor Time

J7609*

Clip, Radiator Vent Inlet Hose - Install

0.1 hr

Add:

Diagnosis Time

0.0-0.3 hr

J3515

Hose And/Or Pipe, Coolant Vent - Hose - Replace

Use Published Labor Operation Time

* This labor operation is for bulletin use only. It will not be published in the Labor Time Guide.