A/C, Cooling System - Auxiliary Heater Coolant Leak
Bulletin No.: 07-01-37-003Date: November 28, 2007
TECHNICAL
Subject:
Coolant Leak from Auxiliary Heater - Fuel Operated [FOH] (Replace Hose Clamps)
Models:
2006-2007 Chevrolet Express
2006-2007 GMC Savana
with Heater-Auxiliary, Fuel Operated (RPO K08) and
6.6L Diesel Turbo Engine (VIN 2 - RPO LLY) or 6.6L Diesel Engine (VIN 6 - RPO LMM)
Condition
Some customers may comment on a coolant leak.
Cause
This condition may be caused by insufficient clamp load on the auxiliary heater hose clamps.
Correction
DO NOT REPLACE THE AUXILIARY HEATER ASSEMBLY.
Replace the auxiliary heater hose clamps with a universal worm clamp.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer