The diagnosis and repair procedures in a GM Service Manual contain both
general and specific Dangers,
Warnings, Cautions, Notes or Importants. GM is dedicated to the presentation of
service informat
WARNING: Certain components in the Antilock Brake System (ABS) are not
intended
to be serviced individually. Attempting to remove or disconnect certain
system components may result in personal injury
WARNING: In order to reduce the risk of fire and personal injury
observe the
following items:
Replace all nylon fuel pipes that are nicked, scratched or damaged
during installation, do not attempt
Power Transfer Unit Case Disassemble
Power Transfer Unit Case Holding Fixture Installation
Power Transfer Unit Case
Procedure
Always secure with the pivot pin after rotating.
NOTE:
The power transfer unit can be rotated 360 degrees to facilitate repair.
Special Tools
DT-3289-20 Holding
Ambient Air Temperature Calculation Reset (with Ambient Air
Temperature Sensor Wired to ECM)
Diagnostic Instructions
Perform the Diagnostic System Check prior to using this diagnostic
procedure: Diagnostic
System Check - Vehicle
Review the description of Strategy Based Diagnosis:Strategy Based