C 1500 Truck 2WD V6-262 4.3L VIN Z (1992)
EGR Valve: Technical Service Bulletins
Linear EGR - Installation Procedure Revision
FILE IN SECTION: 6E - Engine Fuel & Emission
BULLETIN NO.: 51-65-32
DATE: May, 1995
SUBJECT:
Section 6E3, 9, 9C, 9A - Driveability and Emissions - Revised Linear EGR installation Procedure
MODELS:
1992-95
Chevrolet and GMC Truck M/L Vans
1992-95
Chevrolet and GMC Truck S/T Models
1993-95
Chevrolet and GMC Truck C/K Models
1994-95
Chevrolet and GMC Truck G Vans
1994-95
Chevrolet and GMC Truck P3, P/G Chassis
1992-93
Oldsmobile Bravada
with 4.3L, 7.4L Engines (VINs W, N - RPOs L35, L19)
and (VIN Z - RPO LB4 - with California Emissions)
This service bulletin revises the Linear EGR installation Procedure, in the following service manuals:
1992-93 Oldsmobile Bravada Service Manual, page 6E3-C7-6.
1992-93 Light Duty Truck, Fuel and Emissions Service Manual, pages 9-19 and 90-6.
1994-95 S/T Driveability Emissions and Electrical Diagnosis Service Manual and the 1994 S/T Truck Supplement with RPO CTF, page 9A-8.
1994-95 C/K, M/L, G Van and P/G and P3 Chassis Driveability Emissions and Electrical Diagnosis Service Manuals, page 9A-6.
The revised procedure is as follows:
Install or Connect
1. EGR valve and new gasket.
2. Valve to flange bolts.
Tighten
Tighten bolts in two steps.
a. The first step to 10 Nm (89 lb.in.).
b. The second step to 25 Nm (18 lb.ft.).
3. Electrical connector.
