GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Cadillac
🢒
2009
🢒
SLS
🢒
Diagnostic Navigation
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Vehicle Diagnostic Information
🢒 Generator Replacement
Generator Replacement LY7
Removal Procedure
Disconnect the battery negative cable. Refer to
Battery Negative Cable Disconnection and Connection
.
Remove the drive belt from the generator. Refer to
Drive Belt Removal
.
Raise and support the vehicle. Refer to
Lifting and Jacking the Vehicle
.
Disconnect the electrical connector (1) from the generator.
Reposition the protective boot from the generator output battery terminal for access.
Remove the generator output BAT terminal nut (3) and disconnect the battery positive lead (2) from the generator.
Remove the lower generator bolts.
Lower the vehicle.
Remove the upper generator bolts.
Remove the generator from the engine.
Installation Procedure
Install the generator to the engine.
Install the upper generator bolts.
Raise and support the vehicle. Refer to
Lifting and Jacking the Vehicle
.
Caution:
Refer to
Fastener Caution
in the Preface section.
Install the lower generator bolts and tighten to
46 N·m (36 lb ft)
.
Install the battery positive lead (2) and the generator BAT terminal nut (3) to the generator and tighten to
13 N·m (115 lb in)
.
Install the BAT terminal boot.
Connect the electrical connector (1) to the generator.
Lower the vehicle.
Install the drive belt to the generator. Refer to
Drive Belt Installation
.
Connect the battery negative cable. Refer to
Battery Negative Cable Disconnection and Connection
.
Generator Replacement LH2 w/AWD
Removal Procedure
Disconnect the battery negative cable. Refer to
Battery Negative Cable Disconnection and Connection
.
Remove the generator drive belt. Refer to
Drive Belt Removal
.
Remove the upper generator mounting bolts (1, 3).
Raise and support the vehicle. Refer to
Lifting and Jacking the Vehicle
.
Remove the front air deflector. Refer to
Front Air Deflector Replacement
.
Cut the tie strap securing the wiring harness to the generator.
Remove the lower generator mounting bolt.
Lift the generator off of the mounting bracket in order to gain access to the connector and the generator output BAT terminal nut.
Disconnect the wire harness electrical connector from the generator.
Reposition the protective boot from the generator output battery terminal for access.
Remove the generator output battery terminal nut and disconnect the battery positive lead from the generator.
Remove the generator from the vehicle.
Installation Procedure
Position the generator near the installed position.
Caution:
Refer to
Fastener Caution
in the Preface section.
Connect the battery positive lead to the generator then install the generator output battery terminal nut and tighten to
10 N·m (89 lb in)
.
Press the protective boot on to the generator output BAT terminal.
Connect the wiring harness connector to the generator.
Position the generator to the generator bracket on the engine.
Install the lower generator bolt, but do not tighten at this time.
Lower the vehicle.
Install the upper generator bolts in the sequence shown and tighten to
50 N·m (37 lb ft)
.
Raise and support the vehicle. Refer to
Lifting and Jacking the Vehicle
.
Install a new tie strap to secure the wiring harness to the generator.
Install the front air deflector. Refer to
Front Air Deflector Replacement
.
Lower the vehicle.
Install the generator drive belt. Refer to
Generator Drive Belt Replacement
.
Connect the battery negative cable. Refer to
Battery Negative Cable Disconnection and Connection
.
Generator Replacement LH2 w/RWD
Removal Procedure
Disconnect the battery negative cable. Refer to
Battery Negative Cable Disconnection and Connection
.
Remove the generator drive belt. Refer to
Generator Drive Belt Replacement
.
Remove the upper generator mounting bolts (1, 3).
Raise and support the vehicle. Refer to
Lifting and Jacking the Vehicle
.
Remove the front air deflector. Refer to
Front Air Deflector Replacement
.
Cut the tie strap securing the wiring harness to the generator.
Remove the lower generator mounting bolt.
Lift the generator off of the mounting bracket in order to gain access to the connector and the generator output BAT terminal nut.
Disconnect the wire harness electrical connector from the generator.
Reposition the protective boot from the generator output battery terminal for access.
Remove the generator output battery terminal nut and disconnect the battery positive lead from the generator.
Remove the generator from the vehicle.
Installation Procedure
Position the generator near the installed position.
Caution:
Refer to
Fastener Caution
in the Preface section.
Connect the battery positive lead to the generator then install the generator output battery terminal nut and tighten to
10 N·m (89 lb in)
.
Press the protective boot on to the generator output BAT terminal.
Connect the wiring harness connector to the generator.
Position the generator to the generator bracket on the engine.
Install the lower generator bolt, but do not tighten at this time.
Lower the vehicle.
Install the upper generator bolts in the sequence shown and tighten to
50 N·m (37 lb ft)
.
Raise and support the vehicle. Refer to
Lifting and Jacking the Vehicle
.
Install a new tie strap to secure the wiring harness to the generator.
Install the front air deflector. Refer to
Front Air Deflector Replacement
.
Lower the vehicle.
Install the generator drive belt. Refer to
Generator Drive Belt Replacement
.
Connect the battery negative cable. Refer to
Battery Negative Cable Disconnection and Connection
.