1998 GMC Sierra technical service bulletins

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

• Mar 1, 2007 Service bulletinReduced steering effort (diagnose/replace steering wheel position sensor)
• Jan 1, 2006 Service bulletinAntilock brake (ABS) activation at low speeds
• Oct 28, 2005 Service bulletinSupplement to bulletin 99-06-04-047A for fuel system cleaning
• Sep 28, 2005 Service bulletinFour wheel drive inoperative and the 4WD service light will illuminate
• Aug 1, 2005 Service bulletinDiagnosis of cracked or broken transmission case
• May 10, 2005 Service bulletin4WD inoperative and diagnostic trouble code (DTC) U1026 atc fuse open
• Mar 1, 2005 Service bulletinReplacement of connector when replacing fuel tank module/fuel pump module
• Nov 17, 2004 Service bulletinService engine soon light and P0300 when towing, cruising uphill or on hard acceleration
• Mar 1, 2004 Service bulletinRattle noise in engine
• Jan 1, 2004 Service bulletinSpring slap noise from the rear of the gmt 400 series truck
• Jan 1, 2004 Service bulletinMalfunction indicator lamp on with a P0300 set and a misfire
• Jan 1, 2004 Service bulletin4L60E, 4L65E forward and low reverse waved steel clutch plate appearance change
• Jan 1, 2004 Service bulletinEngine coolant leak at intake gasket
• Nov 18, 2003 Service bulletinPoor performance from a stop in 2WD, auto or 4WD hi
• Nov 18, 2003 Service bulletinMalfunction indicator lamp on with a P0300 set and a misfire
• Nov 1, 2003 Service bulletin4L60-E automatic transmission oil pump first and second design identification
• Apr 18, 2003 Service bulletinElectric outside rearview mirror switch short circuit
• Mar 14, 2003 Service bulletinInstalling a fuse jumper harness to correct a short circuit in the electric outside rearview mirror switch
• Feb 1, 2003 Service bulletinSlips in 4-WHEEL drive, noise, vibration, leaks, hot odor
• Dec 1, 2002 Service bulletinAntilock brake (ABS) activation at low speeds on various models including the 1995 and 1996 envoy
• Oct 1, 2002 Service bulletinDiagnostic information for intermittent transmission downshift, slip, busy/cycling tcc or noisy cooling fan
• Jun 1, 2002 Service bulletinSome vehicles will not move when 4-WHEEL drive is requested, noise, shudder, poor performance,...