Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
PIT3227J
Service Bulletin/Repair Instructions
This Preliminary Information communication provides information to the technician about vehicles that may have slack in one of the tailgate cables. Technician should not replace any parts for this concern. Please communicate to the customer this condition is a normal operating characteristic of their vehicle.
PIP3720D
Service Bulletin/Repair Instructions
This Preliminary Information communication provides information to the technician with the axel setup information from American Axle Manufacturing. Technician should be advised that the maximum pinion shim to be used or stacked behind the pinion is 0.050?, and the minimum pinion shim is 0.020? for an 8.6 axle. The range for available pinion depth shims for the 10.5? axle is 0.006? to 0.024?. When setting the backlash it should be set between 0.003? to 0.005? on a new ring and pinion for any American Axle Manufacturing application. The ring and pinion can be reused or adjusted if the mileage is less than 500 miles, if not used for towing. Technician should be advised that a ?roller coaster? or ?hourglass? pattern on the bearings may be normal up to 10,000 miles and possibly longer. With a mis-machined housing you may get a heel pattern on both sides of the gear teeth at build up can generally be corrected with backlash adjustments. When setting up an 8.6? axle with a 5 cut gear set is to use a 0.035? pinion shim and set backlash to 0.004?. When using the newer 2 cut gear set also use a 0.035? pinion shim and still set backlash to 0.004?. To set the gear pattern use backlash to adjust the pattern heel to toe. Use the pinion shim to adjust the height of the pattern. The proper drive pinion bearing pre-load is from 15 - 30 inch pounds with new bearings. The total torque to turn after the differential case is installed should increase 5 - 10 inch pounds at the pinion. A new pinion nut must be used whenever the old one is removed. The axle shaft end play specification is 0.012? per side and the radial specification is 0.002? - 0.003?. Technician should be advised that synthetic lube can be used in all new American Axle Manufacturing axle assemblies. The new pinion seal for the 8.6? axle assembly is a two piece design.
01655
Service Bulletin/Repair Instructions
REPEAT DIAGNOSTIC TROUBLE CODE (DTC) P0410 WITH WATER IN THE AIR PUMP. *MJ
020090002
Service Bulletin/Repair Instructions
SUBJECT REGARDING LUBRICATION OF PROPELLER SHAFT DOUBLE CARDAN CV TYPE U-JOINT CENTERING BALL AND SEAT.*NLM
020701
Service Bulletin/Repair Instructions
INFORMATION ON INSTRUMENT PANEL COVER SOFT TOUCHED PAINT PEEL, BLISTER, OR CRACKING CONDITIONS, ON SOME GMC, CHVROLET, AND CADILLIAC FULL SIZE PICKUPS AND SPORT UTILITY TRUCKS. *JB
010101
Service Bulletin/Repair Instructions
SUBJECT REGARDING LOCKOUT PREVENTION FEATURE, OPERATOR OVERRIDE PROCEDURE. *SLC
061000
Service Bulletin/Repair Instructions
THIE PURPOSE OF THIS MESSAGE IS TO PROVIDE CLARIFICATION ON BULLETIN NUMBER 000604007A. THE SUBJECT OF THE BULLETIN IS INCREASED ACCELERATOR PEDAL EFFORT, REPLACED THROTTLE BODY ON CERTAIN PICKUP MODELS EQUIPPED WITH THE GEM 3 V-8 ENGINE. *TT
3170E
Service Bulletin/Repair Instructions
IPC, INTERIOR LIGHTS AND/OR HEADLAMPS FLICKER. *AK FB2
3389
Service Bulletin/Repair Instructions
FOUR WHEEL DRIVE INOPERATIVE AND THE 4WD SERVICE LIGHT WILL ILLUMINATE. 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