Skylark L4-138 2.3L SOHC VIN 3 MFI QUAD 4 (1992)
PCV Heater: Technical Service Bulletins
Emissions - Diagnose/Replace Crankcase Vent Heater
Bulletin: 92-6E-28
Date: Nov. '92
Ref.No.: 92-325-68
Corp.Ref.No.: 276106
SUBJECT:
CRANKCASE VENT HEATER POTENTIAL SERVICE ISSUES (DIAGNOSE/REPLACE CRANKCASE VENT HEATER ASSEMBLY)
MODELS AFFECTED:
1992 SKYLARK WITH 2.3L QUAD OHC ENGINE (L40, VIN CODE 3)
CONDITION:
Several conditions may occur. The Skylark may have an ABS light on, or no HTR-A/C (HTR-A/C fuse blown). Service conditions are not limited to the
examples given above; refer to the bulletins referenced below and Section 8A in the 1992 Skylark Service Manual for additional systems which may be
affected.
CAUSE:
The crankcase vent heater assembly may have shorted out.
CORRECTION:
Replace the crankcase vent heater assembly if assembly has shorted out (GM P/N 24572353 Heater, Crankcase Vent).
SERVICE INFORMATION:
Review Section 6E3-C13 bulletin 92-6E-21 to determine if crankcase vent heater has shorted out. Replace the crankcase vent heater as needed.
Section 8A-32 in the Service Manual is the wiring schematic information for the crankcase vent heater assembly.
Parts are currently available from GMSPO.
