Savana 3500 V8-6.6L DSL Turbo VIN 6 (2007)
Turbocharger Vane Position Sensor: All Technical Service Bulletins
Diesel Engine - MIL ON/Multiple DTC's Turbocharger VPS
TECHNICAL
Bulletin No.: 09-06-93-003B
Date: January 04, 2011
Subject: Check Engine Light Illuminated, DTC P2564, P2565, P2563, P0234, P0299, P0401, P0698 or P0106 Set (Replace Turbo Vane Position
Sensor and Cut Out a Square Section)
Models:
2006-2008 Chevrolet Express
2006-2008 GMC Savana
All Equipped with Engine RPO LLY or LMM
Vehicles Built Prior to October 2008
Please Refer to GWM/IVH
Supercede:
This bulletin is being revised to add a part allowance amount. Please discard Corporate Bulletin Number 09-06-93-003A (Section 06 -
Engine/Propulsion System).
Condition
Some customers may comment on an intermittent MIL/SES Light illumination with the following DTCs set: P2564, P2565, P2563, P0234, P0299,
P0401, P0698 or P0106.
Cause
On vehicles built prior to October 2008, the turbocharger vane position sensor may contact against the engine cover insulation, creating an open or short
in the vane position sensor harness.
Correction
Important
Vehicles built after October 2008 have a revised engine cover to clear the vane position sensor.
1. Remove the engine cover. Refer to Engine Cover Replacement in SI.
2. Inspect for damage to the vane position sensor harness at the top of the sensor due to contact with the engine cover.
3. If the harness is damaged, replace the Turbo Vane Position Sensor with P/N 12635324. Refer to Turbocharger Vane Position Sensor Replacement
in SI.
4. Place the engine cover on a workbench. Notice the two raised areas on the inside of the engine cover (1). Tape an x using the two raised areas as a
straight edge (2).
