Model Year(s)
Vehicle Line(s) / Condition
Do This
Don't Do This
Reference Information/Bulletin
2002
TrailBlazers, Envoys, Bravada - Essential Tool for HVAC Mode Door Actuator Replacement
Use GE-47676 to replace HVAC mode door actuator.
Don't replace cam assembly.
05-01-38-001A
2003-2005
SSR - Door Will Not Open From Inside Door Handle
Replace door handle hinge support.
Don't replace door panel.
05-08-64-026
2004-2005
Colorado/Canyon - Side Door window Glass Clips Fall Off
Replace door window glass.
Don't re-attach door window glass clips.
04-08-64-022
2001-2005
Chevrolet/GMC 36 Series Cab/Chassis - DTC P1172 or P2636, Fuel Gauge Reads Empty, SES Light On
Modify fuel tank balance line.
Don't replace fuel tank unit, PCM or fuel transfer pump.
05-06-04-008
2004-2005
All Cars and Trucks - State-of-Charge Upon Delivery of a New Vehicle
Check battery's state-of-charge using J-42000 or J-42000-EU.
Don't remove and replace battery.
02-06-03-009A
2002-2004
Silverado, Suburban, Tahoe, Sierra, Yukon/XL, Escalade EXT - Rough Idle, Misfire, MIL DTC P0300
Measure intake manifold for warpage across two runner ports only. Replace upper manifold gasket with teal-green gasket.
Don't measure intake manifold across all four intake runner ports. Don't replace upper intake manifold gasket with orange gasket.
05-06-04-029
2001-2003
Fullsize Pickups - Injector Replacement for High Flow Rates
Use Bulletin 04-06-04-007A for injectors with high fuel return rates. Use Special Policy 04039 for all 01-02 vehicles.
Don't replace 8 injectors for any complaint other than high fuel return rates. All other injector failures are fix as failed.
Special Policy 04039
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