Removal & Installation
Before servicing the vehicle, refer to the Precautions Section.
NOTEDisconnecting the negative battery cable on some vehicles may interfere with the functions of the on-board computer systems and may require the computer to undergo a relearning process, once the negative battery cable is reconnected.
NOTEIf working near and/or around the SRS system and components, be sure to properly disable the SRS system. See disarming/arming the SRS system.
- Disconnect the negative battery cable.
- Tag and disconnect the alternator wiring.
Remove the alternator brace bolt. Remove the drive belt.
Support the alternator and remove the mount bolt(s). Remove the unit from the vehicle.
- Position the alternator into place and install the mount bolt(s) loosely.
Install the drive belt(s). Tighten belt enough to allow approximately
inch of play on the longest run between pulleys.
NOTEThe alternator belt is properly adjusted when the cooling fins and pulley assembly on the unit are not capable of being turned by hand.
- Connect the alternator wiring.
- Connect the battery ground cable.
- Using the GM diagnostic scan tool or aftermarket equivalent reprogram the necessary systems and components. Be sure to follow the scan tool manufacturer-s directions.
There are many possible ways in which the charging system can malfunction. Often the source of a problem is difficult to diagnose, requiring special equipment and a good deal of experience. However, when the charging system fails completely and causes the dash board warning light to come on or the battery to become dead the following items may be checked:
- The battery is known to be good and fully charged.
- The alternator belt is in good condition and adjusted to the proper tension.
- All connections in the system are clean and tight.