K 2500 Truck 4WD V8-305 5.0L VIN M SFI (1996)
EGR Valve: All Technical Service Bulletins
Linear EGR Valve - Installation
File In Section: 6E - Engine Fuel & Emission
Bulletin No.: 57-65-28
Date: January, 1996
INFORMATION
Subject:
Linear EGR Valve Installation
Models:
1993-96 Chevrolet and GMC Truck S/T; M/L, C/K, P, G Models
1993-94 Oldsmobile Bravada
1996 Oldsmobile Bravada
with 4.3L V6, 5.0L V8, 5.7L V8 Engine
(VINs W, X, M, R - RPOs L35, LF6, L30, L31)
When installing Linear EGR Valves, take care to orientate the valve properly before installation. It is possible to rotate the Linear EGR valve 18O°, and
then install it on the intake manifold.
Notice: Linear EGR Valves improperly installed do not function as intended. Possible driveability concerns include a rough idle and the setting of codes
DTC 32 (EGR Error) or DTC 1406 (Pintle Position Error).
Linear EGR Valves improperly installed may respond to high vacuum conditions (at idle) by pulling the valve open, or high back pressure conditions by
pushing the valve open.
When replacing or re-installing a LEGR valve, install the valve (with a new gasket) in the correct orientation.
A new insulated gasket for use with this valve has been released for production and service.
(figure 1) Linear EGR Legend
