How to Replace Alternator 96-99 Buick LeSabre
Difficulty: Intermediate · About 35 min · Buick Lesabre
Replace the alternator on a 1996-1999 Buick LeSabre.
Tools you will need
- Ratchet
- 8mm wrench
- 10mm socket
- 13mm socket
- 15mm socket
Parts and supplies
- Alternator
Steps
- Disconnect the battery
Disconnect the negative terminal with an 8mm wrench.
- Remove the old alternator
Fit a 15mm socket and wrench to the tensioner to slacken the belt, remove the two 13mm bolts at the front of the alternator and the single 10mm bolt at the back, then unplug its wiring harness.
- Install the new alternator
Set it in place, insert and tighten the two 13mm bolts, insert the 10mm bolt at the back, then reconnect the wiring harness.
- Reinstall the serpentine belt
Loop it around the crank pulley, use the 15mm socket on the tensioner to pull it clockwise, work the belt over the alternator, then release the tensioner.
- Reconnect the battery
Reconnect the negative terminal with the 8mm wrench.
Check your vehicle’s repair manual for exact specifications and fit.