Lumina V6-204 3.4L DOHC (1991)
Fuel Injector: All Technical Service Bulletins
Fuel System - Phantom Stalls at Closed Throttle/Loads
File In Section: 6E - Engine Fuel & Emission
Bulletin No.: 67-63-03
Date: June, 1996
Subject:
Phantom Stalls at Closed Throttle and High Engine Loads
(Replace Fuel Injectors)
Models:
1991-93 Chevrolet Lumina
1991-93 Oldsmobile Cutlass Supreme
1991-93 Pontiac Grand Prix
with 3.4L Twin DOHC V6 Engine (VIN X - RPO LQ1)
Condition
Some owners may experience a phantom stall when the engine throttle is closed and high load demands are placed on the engine. Typically this is
encountered when the owner is maneuvering in a parking lot at an idle speed with a closed throttle and placing a high load demand on the engine such as
power steering. The engine could stall but would restart immediately. This type of stall is very difficult to duplicate.
Correction
A new fuel injector, part number 25170699, has been released for service to correct this condition. The new fuel injector is designed to flow richer at a
low pulse width. Before replacing the injectors, remember to check the following:
1.
Minimum air rate setting.
2.
Vehicles equipped with manual transmissions: check crankshaft end play, refer to bulletin 236007.
3.
Power steering pressure switch.
4.
Make sure the latest calibration is installed in the vehicle, refer to bulletin 336506.
Parts Information
Parts are currently available from GMSPO.
Qty
Part Number
Name
6
25170699
Injector Asm - M/Port fuel
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation
Labor Time
J5650 Injector, fuel -
Use published labor
replace
operation time.
