ION L4-2.2L VIN F (2004)
Evaporator Drain Tube: All Technical Service Bulletins
A/C - Water leaks Into Vehicle Interior
Bulletin No.: 03-01-39-011B
Date: November 22, 2005
TECHNICAL
Subject:
Water Leaks Into Passenger Compartment Through HVAC Module Condensate Drain Tube When Parked on Incline/Uphill Position (Install Auxiliary
Drain Tube Extension)
Models:
2003-2006 Saturn ION Sedans and Coupes
Supercede:
This bulletin is being revised to include the 2005 and 2006 model years. Please discard Corporate Bulletin Number 03-01-39-011A (Section 01 -
HVAC).
Condition
When vehicle is parked on an incline with the front end up during a rainstorm or when driving uphill during a rainstorm, water may leak into the
passenger compartment through the condensate drain tube opening of the HVAC module.
Cause
Water may drain out of the cowl drain, then drain down the front of the dash panel in the engine compartment and seep into the HVAC module
condensate drain tube opening. The water then collects in the heater core cover and upon acceleration may leak into the passenger compartment through
the heater core cover seams.
Correction
Install an auxiliary drain tube with a 90° angle to prevent water from entering the HVAC module condensate drain tube. Refer to the procedure
below: