18NA019

File in Section:
Bulletin No.:
Service Bulletin
Date:
18-NA-019
February, 2018
TECHNICAL
Subject:
No Start, Hard Start with Belt Squeal, Belt Break, Loss of Power Steering and/or Power
Brake Assist
Brand:
Model:
Chevrolet
GMC
Model Year:
VIN:
from
to
Express
2018
2018
Savana
2018
2018
from
to
SOP
1GAZGPFP2J1196477
Engine:
LV1
Transmission:
All
Involved Region or Country
North America and NA Export vehicles
Additional Options (RPOs)
Equipped with 4.3L 6 Cylinder Engine (RPO LV1)
Condition
Some customers may comment on one or more of the following:
• Vehicle will not start.
• Vehicle hard to start with a squeal noise originating from the engine compartment.
• Vehicles belt broken.
• Loss of power steering.
• Loss of vehicles power brake assist.
Cause
This may be caused by water leaking from cowl area into generator vents.
Under certain weather conditions, this water can freeze inside and prevent the generator
from turning.
Correction
Replace generator, belt, and any other pulleys that have been contaminated with rubber
build up from the belt heating up. Seal water leak at cowl with Kent clear seam sealer.
Service Procedure
If you encounter a vehicle with one or more of the
above concerns, complete the following:
1. Replace any of the components that may have
been damaged or contaminated.
4943982
2. Apply Kent ® High Tech Clear Seam Sealer to the
seam illustrated above.
Important: Be sure to apply the sealer to the
entire seam.
4943934
Copyright 2018 General Motors LLC. All Rights Reserved.
Page 2
February, 2018
Bulletin No.: 18-NA-019
Parts Information
Contact Kent Automotive at 1-888-937-5368 or
Kent Automotive
Causal
Part
Description
Part
Number
Qty
N/A*
Kent ® High Tech
Clear Seam
Sealer**
P 10200
1
* For warranty transactions, DO NOT mark this/these parts
as the Causal Part. Enter the word “Bulletin” in the Causal
Part Description free-flow text field.
**We believe this source and their products to be reliable.
There may be additional manufacturers of such products/
materials. General Motors does not endorse, indicate any
preference for or assume any responsibility for the products
or material from this firm or for any such items that may be
available from other sources.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation
Description
Labor Time
0560052
Plenum Panel Resealing
Use Published Labor
Operation Time
Version
2
Modified
Released January 22, 2018
February 22, 2018 — Updated break point with VIN.
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these
technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper
service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a
job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your
vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the
information.
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