Cooling System, A/C - Leaking/Heater Hose Coolant Loss

TECHNICAL

Bulletin No.: 09-06-02-009

Date: October 30, 2009

Subject: Leaking/Loss of Coolant from Heater Hose (Replace Heater Outlet Hose/Install New Hose Clamps and Tie Strap Away from Tensioner Pulley)

Models:
2009 Chevrolet Express Van
2009 GMC Savana Van
All Equipped with Diesel Engine RPO LMM
Vehicles Built Prior to August 27, 2008
Please Refer to GMVIS

Condition

Some customers may comment on a fluid leak. Upon further inspection, the technician may find coolant leaking from the heater outlet hose.

Cause

This condition may be caused by the heater outlet hose being too long and making contact with the belt tensioner pulley.

Correction





Replace the heater outlet hose with GM P/N 15853836 and secure away from belt tensioner pulley. Install two new hose clamps, P/N 11517133. Refer to Heater Outlet Hose Replacement (6.6L - without Bypass Valve) in SI. Then secure the heater hose to the lower radiator hose with a tie strap (1).

Parts Information





Warranty Information





For vehicles repaired under warranty, use the table.





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