Uplander FWD V6-3.5L VIN L (2006)
Heater Hose: All Technical Service Bulletins
Cooling System, A/C - Ticking Noise at Idle
Bulletin No.: 06-06-02-002C
Date: August 24, 2006
TECHNICAL
Subject:
LZE LZ4 LZ9 Ticking or Clicking Noise Heard Inside Vehicle On Passenger Side at Idle (Install Updated Heater Inlet and Outlet Coolant Hoses/Pipes)
Models:
2006 Buick Rendezvous, Terraza
2006 Chevrolet Impala, Malibu, Malibu Maxx, Malibu SS, Monte Carlo, Uplander
2006 Pontiac G6, G6 GT, G6 GTP, Montana SV6
2006 Saturn Relay
with 3.5L or 3.9L V6 Engine (VINs K, N, 1 - RPOs LZE, LZ4, LZ9)
Supercede:
This bulletin is being revised to update the parts information. Please discard Corporate Bulletin Number 06-06-02-002B (Section 06 -
Engine/Propulsion).
Condition
Some customers may comment on a ticking or clicking noise heard inside the vehicle on the passenger side. The noise may be noticeable with the engine
on and at idle, with the vehicle in PARK, and with the HVAC and radio off.
Cause
The noise may be caused by normal EVAP purge valve operation. The EVAP purge valve operation may be internally grounding out, creating a noise
path through the coolant inlet and outlet hoses/pipes
Correction
Perform the diagnosis FIRST to determine if the EVAP purge valve operation is normal. Confirm the customer concern by using a Tech 2(R) to disable
the EVAP purge valve. If the ticking or clicking noise heard inside the passenger side of the vehicle is gone, perform the following steps:
Drain the cooling system. Refer to Draining and Filling Cooling System in SI.
Remove the intake manifold cover, if equipped. Refer to Intake Manifold Cover Replacement in SI.
Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in SI.
Release the rubber coolant inlet and outlet hoses/pipes clamps at the engine pipes using the J 38195 hose clamp pliers, or equivalent.
Remove the coolant inlet and outlet hoses/pipes clamp nuts from the throttle body studs.
Remove the quick connect fitting from the coolant inlet and outlet hoses/pipes. Refer to Quick Connect Fitting(s) Service (Metal Collar) in SI.
