Corsica V6-173 2.8L (1987)
Fuel Gauge Sender: All Technical Service Bulletins
Fuel Gauge - Reads Incorrectly
Number:
87-225
Section:
8C
Date:
Sept., 1987
Subject:
FUEL GAUGE READS INCORRECTLY
Model and Year:
1987 BERETTA, CORSICA WITH 2.8L M.P.F.I. ENGINE
TO:
ALL CHEVROLET DEALERS
Comments regarding 5-9 gallons of fuel remaining in the fuel tank when the fuel gage reads empty have been received on some early built 1987 2.8L
MPFI (LB6) equipped Corsicas with RPO U21 (gauge package) and Berettas with the base gauge package.
FIGURE 1
These comments may be attributable in part to operator inability to accurately interpret fuel gage reading due to gage graphics and usage of a short gage
pointer (Figure 1), and/or an inaccurate fuel tank sending unit.
Vehicles that have been noted as exhibiting this concern may be repaired by following the steps below and applicable shop manual procedures.
1.
Send gauge cluster assembly to authorized A.C. Delco Service Center for pointer replacement (longer pointer) and recalibration (Ref. A.C. Delco
Service Bulletin 87-CH-L-01).
2.
Install fuel tank sender assembly, P/N 25091401, that incorporates usage of a new float that reduces empty reserve to one gallon on 2.8L M.P.F.I.
(RPO LB6) engines.
Use applicable labor operations and time.
