Express 1/2 Ton Van V6-4.3L VIN W (1999)
Fuel Injector: All Technical Service Bulletins
Fuel System - Rough Idle, Hard Start, No Start
File In Section: 06 - Engine/Propulsion System
Bulletin No.: 00-06-04-018
Date: May, 2000
TECHNICAL
Subject:
Rough Idle After Start, Hard Start, or No Start (Replace Fuel Tank Fill Pipe Assembly/Clean SCPI Poppet Valves)
Models:
1997-1999 Chevrolet and GMC M/L Van
1998-2000 Chevrolet and GMC G Van
1999-2000 Chevrolet and GMC C/K Models (Silverado and Sierra)
With 4.3L, 5.0L, or 5.7L Gasoline Engine
(VINs W, X, M, R - RPOs L35, LF6, L30, L31)
Built Prior to the Following VIN Breakpoint or Production Date:
Model
VIN/Production Date
C/K
11-19-1999
(Silverado and Sierra)
Van
10-22-1999
(Passenger/Cargo Only)
M/L (Chevy)
XB191755
M/L (GMC)
XB534449
Condition
Some drivers may comment on any or all of the following conditions:
^
No Start
^
Hard Start
^
Rough Idle
^
Other driveability concerns relating to the fuel system
Cause
Under certain conditions, the fuel elements may extract compounds from the fuel filler hose. These hose compounds, when mixed with the gasoline, may
deposit onto the fuel injectors, causing the fuel injector to stick in a closed position.
Correction
A revised fuel tank fill pipe assembly, which incorporates a new filler hose, has been developed. If the fuel injectors are sticking due to compound
deposits, the new filler hose will correct the condition. However, additional factors may cause fuel injectors to stick, allowing for a repeat condition.
Review the vehicle history to determine if a fill pipe assembly has been previously replaced since February 15, 2000. If the fill pipe was not replaced
previously, replace the fuel tank fill pipe assembly on affected vehicles. Use the applicable part number listed below. Refer to the Engine Controls
subsection of the appropriate Service Manual for filler pipe/hose replacement procedures. The fuel injectors should also be cleaned as part of this
procedure. Refer to Corporate Bulletin Number 00-06-04-003, dated January 2000 for fuel injector cleaning procedures.
Parts Information
Part Number
Description
15760284
Pipe Asm., F/Tank Fill
G(G Van)
15050573
Pipe Asm., F/Tank Fill
(M/L Van)
15747585
Pipe Asm., F/Tank Fill
(C/K E63 (Fleetside) w/o AC7)
15747588
Pipe Asm., F/Tank Fill
(C/K E62 (Stepside) w/o AC7)
Parts are currently available from GMSPO.
Warranty Information