Engine - MIL ON/DTCs P0008/P0009/P0016/P0017/P0018/P0019
TECHNICALBulletin No.: 07-06-01-013B
Date: June 18, 2008
Subject:
LP1, LY7 MIL/DTCs P0008, P0009, P0016, P0017, P0018 or P0019 (Replace Primary Drive and Both Secondary Drive Timing Chains)
Models:
2007 Buick LaCrosse/Allure
2007 Cadillac CTS, SRX, STS
with 2.8L HFV6 or 3.6L HFV6 Engine (VINs T, 7 - RPOs LP1, LY7)
Attention:
The bulletin does not apply for 2008 model year 2.8L HFV6 or 3.6L HFV6 Engines.
Supercede:
This bulletin is being revised to include additional information on model years for the third design roller-type chain, add an Attention statement that this bulletin does not apply to the 2008 model year and update the Parts Information. Please discard Corporate Bulletin Number 07-06-01-013A (Section 06 - Engine/Propulsion System).
Condition
Some customers may comment on the Malfunction Indicator Lamp (MIL) being illuminated. Technicians may find the Diagnostic Trouble Codes (DTCs) shown above stored.
Cause
This condition may be caused by stretched primary drive and both secondary drive timing chains. Correction Refer to SI for the follow diagnostic information if only one of the DTCs shown above are set.
If there are more than one of the above mention DTCs set, inspect for stretched timing chains. Refer to Camshaft Timing Drive Components Cleaning and Inspection (Fourth Design) in SI.
The above illustration shows the third design roller type chain (1) (for model years 2005-2006 and early built 2007 - LY7) and the fourth design link type chain (2) (for model year 2007 - LY7).
It may take several thousand miles/kilometers of use before the timing chains begin to stretch. Inspect both the primary drive and both secondary drive timing chains for the following:
^ Binding links
^ Loose links
^ Loose pins
If any of the chains are stretched, replace the primary drive and both secondary drive timing chains only. DO NOT replace any of the other timing chain component parts.
Parts Information
Warranty Information
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