C 2500 Truck 2WD V8-5.7L VIN R (1997)
Fuel Injector: All Technical Service Bulletins
Fuel - Correct Solvent for CSFI Poppet Cleaning
File In Section: 06 - Engine
Bulletin No.: 99-06-04-006
Date: February, 1999
INFORMATION
Subject:
Correct Solvent for CSFI Poppet Cleaning Procedure
Models:
1999 Cadillac Escalade
1996-99 Chevrolet, GMC S/T, M/L, C/K, G, P Models
1996-99 Oldsmobile Bravada
with 4.3L, 5.0L or 5.7L Engine (VINs X, W, M, R - RPOs LF6, L35, L3O, L31) and All Transmission Types
Some technicians, when servicing 1996 and newer Truck CSFI (Central Sequential Fuel Injection) fuel systems (ref. Corporate Bulletin 87-65-07A), may
be using an incorrect solvent when attempting to clean CSFI poppet valves.
Important:
The ONLY solvent that will have any effect on the deposits occurring on poppet valves is: "PORT FUEL INJECTOR GASOLINE DETERGENT"
(P/N 12345104) (IN CANADA USE P/N 12345515).
The use of Goodwrench "Fuel Injector Cleaner" (P/N 12346291), or any other "Fuel Injector Cleaner" is completely non-effective, and not appropriate
for this concern.
Parts Information
Parts are currently available from GMSPO.
