Subject: | No Start, No Crank, I/P Lamps Illuminated (Battery,
Batteries, Generator, Alternator, Gauges, SES, SIR, Brake, Security, Theft,
ABS, Hot, Light, Lamp), DIC Messages (Repair Loose Generator to Engine Mounting
Bolts and/or Wiring) |
Models: | 2001- 2002 Cadillac DeVille, Seville |
Condition
Some customers may comment on one or more of the following conditions:
• | Intermittent illumination of one or more of the following Instrument
Cluster panel warning lamps. |
• | Gauge readings which seem to be incorrect. |
• | Erratic RPM display on the tachometer. |
• | Engine is difficult/hard to start. |
• | Check Generator displayed on the Driver Information Center. |
• | The transmission shifts hard. |
• | Noise underhood (growl, rattle, hiss, tapping, grinding). |
Cause
This condition may be caused by the following:
• | Loose/missing generator to engine mounting bolts |
• | Chassis to engine and generator ground mounting bolt loose |
• | Loose generator wiring connection |
Correction
Use the following procedure to access the generator for repair of loose
mounting bolts and/or wiring:
- Place the vehicle in position to be lifted by a hoist.
- Remove the rear seat cushion to gain access to the battery.
- Disconnect the negative battery cable.
- Open the hood.
- Remove the ground cable attaching bolt
from the right front chassis rail.
- Raise the vehicle.
- Remove the bumper to radiator support close-out panel.
- Remove the generator attaching bolt #2.
- Remove the ground cable from the vehicle and clean both ends of
the cable if there is any indication of corrosion.
Important: Tightening the mounting bolts in an improper sequence may result in
a loose ground.
- Inspect for missing mounting bolt(s) #1 and #3. Replace them as necessary.
Tighten
Tighten the generator attaching bolt(s) #1 and #3 to 50 N·m(37 lb ft).
- Reposition the ground cable to the generator and install the generator
attaching bolt #2.
Tighten
Tighten the #2 generator attaching bolt to 50 N·m(37 lb ft).
- Position the protective boot of the generator BAT output terminal
aside.
- Remove the retaining nut from the BAT terminal.
- Inspect and clean any corrosion, as required, from the wire terminal
to generator terminal interface.
- Reinstall the wiring harness to the BAT terminal.
Tighten
Tighten the BAT terminal retainer to 12.5 N·m(111 lb in).
- Reposition the BAT terminal protective boot back into proper position.
- Reinstall the lower bumper to radiator support close-out panel.
- Lower the vehicle.
- Reinstall the chassis end of the ground cable into position.
- Install the engine ground cable bolt into the chassis retainer.
Tighten
Tighten the engine ground cable bolt to 50 N·m(37 lb ft).
- Reconnect the negative battery cable to the battery.
Tighten
Tighten the battery cable retainer to 17 N·m (13 lb ft).
- Refer to Corporate Bulletin Number 02-06-03-006
for proper testing procedures of the Battery and Generator.
- Reposition the rear seat cushion.
- Start the vehicle and observe the Drivers Information Center for
messages.
- If the tire pressure monitor message is displayed, refer to Tire
Pressure Monitoring Sensor Programming in SI.
- Set the clock to the correct time for the customer.
Warranty Information
For vehicles repaired under warranty use:
Labor Operation
| Description
| Labor Time
|
N6602*
| Loose Generator to Engine Mounting Bolts and/or Wiring Repair
| 0.6 hr
|
*This is a unique labor operation number for use only with this bulletin. This number will not be published in the Labor Time Guide.
|