S15/T15 4WD Jimmy V6-262 4.3L VIN W CPI (1993)
EGR Valve: Technical Service Bulletins
MIL ON - DTC 32/EGR Valve Failure
Group Ref.: Engine Fuel & Emission
Bulletin No.: 376513
Date: November, 1993
SUBJECT:
DIAGNOSTIC TROUBLE CODE 32 (REPLACE LEGR VALVE AND BASE GASKET, REPAIR COWL BURN THROUGH)
MODELS:
1992-93 CHEVROLET AND GMC M/L VANS AND SIT TRUCKS 1992-93 OLDSMOBILE BRAVADA (EQUIPPED WITH 4.3L (L35) ENGINE)
CONDITION:
Some owners may experience Diagnostic Trouble Code (DTC) 32 and Linear Exhaust Gas Recirculation (LEGR) valve failure. The vehicle may have a
rough idle or lack of power (valve failed open), or detonation (valve failed closed).
CAUSE:
Water intrusion into the LEGR valve coil housing. The valve corrodes internally, causing the pintle to stick. A stuck pintle will cause a DTC 32 to be set
because the actual LEGR pintle position will not be within 20 percent of the desired LEGR pintle position.
CORRECTION:
M/L Van Replace the failed LEGR valve with P/N 17093134 and LEGR base gasket 3522442. For M/L vans built before February 1993, inspect the
cowl area for spot weld burn-through (see illustration). If burn-through is found, repair with body putty.
S/T Trucks Replace the failed LEGR valve with P/N 17093134 and LEGR base gasket 3522442.
The latest LEGR valve has an RTV seal added to the cap and housing crimp area to prevent water intrusion into the valve coil housing.
PARTS INFORMATION:
Linear Exhaust Gas
17093134
Recirculation Valve