For 1990-2009 cars

# ERRATIC FUEL GAUGE READINGS SENDING UNIT REPLACEMENT

#### MODELS AFFECTED: 1985-86 DEVILLE/FLEETWOOD 1986 ELDORADO AND SEVILLE 1985-86 CIMARRON EQUIPPED WITH DIGITAL CLUSTER

Some 1985-86 De Villes, Fleetwoods, Cimarrons and 1986 Eldorados and Sevilles equipped with a digital fuel gage, may experience one of the following erratic fuel gage reading conditions:

1. The fuel gage will "count down" (decrease in one gallon increments) to a flashing "E" while having sufficient fuel in the tank.

#### NOTE: The Cimarron fuel remaining bars will disappear until the "low fuel" indicator illuminates with one bar remaining.

2. The fuel gage reads full at all times (1986 C, E, and K only).

To diagnose these conditions, refer to the following fault trees and then Chart "A" if replacement of the tank sending unit is required.

Chart A: Fuel Sender Units ---------

Car Type Model Year Engine Type Part Number -------- ---------- ----------- -----------

J 1995 2.0 25092967 2.8 25092968

1986 2.0 25092971 2.8 25092095

C 1985 4.1 25092964 (1st Design Integral Wires to RFI Connector) 25092966 (2nd Design Shade Type Connection To RFI) 1986 4.1 25092972

E/K 1986 4.1 25092308

For warranty purposes, use labor operation L1200 to replace the fuel tank gage unit.

#### Vehicle Time

1985-1986 De Ville and Fleetwood 1.6 Hours 1986 Eldorado and Seville 1.1 Hours 1985-1986 Cimarron .9 Hour

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.