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EGR System Check - Updated Chart

File In Section: 6E - Engine Fuel & Emission

Bulletin No.: 51-65-15

Date: April, 1995

SERVICE MANUAL UPDATE

Subject:
Sections 9, 9A, 9B - Driveability Emissions and Electrical Diagnosis - Revised "EGR System Check with Negative Back Pressure EGR Valve" Chart

Models:
1991-95 Chevrolet and GMC Truck M/L, C/K, G, R/V, S, P3, P/G Models with 2.2L, 2.5L, 4.3L, 5.0L Engines (VINs 4, A, Z, E, H - RPOs LN2, L38, LB4, LO3) without 4L8OE Transmission





This bulletin advises of a chart revision in the following service manuals:

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 and Electrical Diagnosis, page 9B-5

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