Truck Issues -- Fix It Right The First Time

Model Year

Vehicle Lines(s) / Condition

Do This

 

Don't Do This

Reference Information / Bulletin Number

 

2007-08

Fullsize utililties with 5.3L E85 Engine (RPO LC9 or LMG) -- Intermittent extended crank after hot soak

Replace single dripping injector, or all if more than one drips

Don't clean injectors

PIP4450C

2009

Enclave, Traverse, Acadia, Outlook with Navigation Radio and RPA --Intermittent battery draw

Reprogram radio with latest calibrations in TIS

Don't replace battery, radio, BCM or other modules

PIP4450C

2001-04

LB7 Duramax Diesel -- Injector high pressure lines corroded

Clean connection area of line and nut of injector high pressure lines as required

Don't replace lines

03-06-04-036A

2007-08

Fullsize utilities --1500 Series -- Power steering fluid leak

Determine source of leak

Don't replace power steering rack

07-02-32-002B

2007-08

Fullsize utilities -- Remote  mirror inoperative.

Perform wiring checks

Don't replace mirror assembly

08-08-45-002

2007-08

Fullsize utilities and trucks, H2 -- Clock, clock tab on navigation screen not appearing

Reprogram with 08i software disc

Don't replace radio assembly

08-08-44-002

2008

Sierra, Silverado -- SES P1174

Reprogram ECM using TIS2Web

Don't replace catalytic converter, PCM, injectors, fuel rails, fuel pumps

08-06-04-028

2006-09

All vehicles -- Identifying aftermarket engine calibrations

Block the warranty claim if aftermarket calibration is installed

Don't submit warranty claim if aftermarket calibration is installed.

08-06-04-033- Gas

08-06-04-006B - Diesel

2008-09

GMC Sierra, Yukon, Chevrolet Silverado, Tahoe,  Hummer H2, H3, Cadillac EscaladeGen IV V8 Engines -- Accessory Drive Belt Noise

Replace belt

Don't replace pulley or component

08-06-01-008

2006-07

Silverado, Sierra, Savanna, Express, Topkick, Kodiak -- SES light illuminated

Clean EGR motor commutator

Don't replace EGR motor or valve assembly.

06-06-04-066C