S15/T15 Sonoma P/U 2WD V6-4.3L VIN X (1998)
Alternator: Customer Interest
Charging - Battery Weak or Dead/Generator Not Charging
File In Section: 6 - Engine
Bulletin No.: 76-64-07
Date: December, 1997
Subject:
Battery Weak or Dead, Generator Not Charging, Battery MIL May Be On
(Repair and Re-position Generator Wire)
Models:
1998 Chevrolet and GMC S/T Models
1998 Oldsmobile Bravada
with 4.3L Engine (VINs X, W - RPOs LF6, L35)
Condition
Some owners may report the battery is weak or dead, the generator is not charging and/or the battery malfunction indicator lamp (MIL) may be on.
Cause
If following steps 1, 2 and 3 of strategy based diagnostics did not reveal the cause, the generator "L" terminal wire (CKT 225, Red) may be cut or
chaffed causing the generator to not charge. The cut or chaffing is within a few inches of the four pin connector at the rear of the generator. It is caused
by the harness conduit and wire rubbing against a sheetmetal bracket, used to support the heater hoses, that is fastened to the rear of the generator.
Correction
Repair the wire and conduit following the procedure described In Section 8A-5 of the Service Manual.
Route the wire and conduit with slack away from the heater hose bracket.
Important:
The generator is not damaged and should not require replacement.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation
Description
Labor Time
N6270
Engine Wiring -
Use Published Labor Operation Time
Repair
