EXPERTEC Technical Service Bulletins (51-65-15)

Publication date: 1995-04-03
Reference number: 51-65-15

EXPERTEC TECHNICAL SERVICE BULLETINS

TECHNICAL SERVICE BULLETIN

Reference Number(s): 51-65-15, Date of Issue: April 3, 1995

Model(s)::

1991-95 GMC Chevrolet and GMC Truck WL, C/K, G, R/V, S, P3, P/G Models with 2.2L, 2.5L, 4.3L, 50L Engines (VINs 4, A, Z, E, H - RPOs LN2, L38, LB4, L03) Without 4L80E Transmission

NOTE: This is a Service Manual revision.

SERVICE INFORMATION

This bulletin advises of a chart revision in the following service manuals: See Fig 1 .

1991 Light Duty Truck Fuel and Emissions - page 9-5

1992 Light Duty Truck Fuel and Emissions - page 9-7

1993 Light Duty Truck Fuel and Emissions - page 9A-5

1994 S/T, G, C/K, P3 and P/G Driveability Emissions - page 9B-5

and Electrical Diagnosis

1995 S/T Driveability Emissions and Electrical Diagnosis - page 9B-5

Fig 1: EGR System Check - W/Negative Back Pressure EGR Valve - Table