1998 GMC Pickup TSBs
6 Technical Service Bulletins across 5 categories
Body & Paint
2 bulletinsThis Preliminary Information communication provides information to the technician about vehicles that may have slack in one of the tailgate cables.
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Technician should not replace any parts for this concern. Please communicate to the customer this condition is a normal operating characteristic of their vehicle.
4L80E OUTPUT CARRIER THRUST WASHER CHANGES.
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*TT
Other
1 bulletinSUBJECT REGARDING LUBRICATION OF PROPELLER SHAFT DOUBLE CARDAN CV TYPE U-JOINT CENTERING BALL AND SEAT.*NLM
Electrical
1 bulletinTHE SCREW THAT SECURES THE LEFT AND CENTER INSULATOR PANELS TOGETHER, UNDERNEATH THE I/P ON THE DRIVER'S SIDE MAY PULL...
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THE ONE PUSH/INSERT NUT OUT OF THE CENTER INSULATOR PANEL CAUSING, THE INSTRUMENT PANEL(I/P) INSULATOR PANEL TO RATTLE. YD
Brakes
1 bulletinThis Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need...
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to be replaced if the brake pedal moves or applies on its own at a full turn.
Engine
1 bulletinFOUR WHEEL DRIVE INOPERATIVE AND THE 4WD SERVICE LIGHT WILL ILLUMINATE.
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DIAGNOSIS MAY REVEAL THAT THE ATC FUSE COULD BE OPEN, POSSIBLE DTC C0308, OR VARIOUS U CODES MAY BE SET. THE ENCODER MOTOR MAY ALSO BE SHORTED OR THE TCCM MAY BE DAMAGED. *TT