EXPERTEC TSB (90-358-6C)

Publication date: 1990-09-21
Reference number: 90-358-6C

EXPERTEC TSB

TECHNICAL SERVICE BULLETIN

Reference Number(s): 90-358-6C, Date of Issue: 09/21/90

FUEL TANK SENDER ASSEMBLY CALIBRATION/POOR MILEAGE

Model(s): 1990 Chevrolet U VAN (APV)

Bulletin No.: 90-358-6C

Date: September 21, 1990

CONDITION

Comments have been received on 1990 U-Vans noting poor vehicle mileage range and/ or poor empty reserve characteristics. Indication to the vehicle operator of these conditions may be that a fuel fill of only 15-16 gallons may be achieved when fuel gauge reads approximately empty.

CAUSE

Fuel tank sender calibration and/or concavity (bowing upward) of lower fuel tank surface.

CORRECTION

Replace existing fuel tank and fuel tank sender assembly with those indicated below following applicable Service Manual procedures.

PARTS INFORMATION

Description	Part Number
Fuel Tank Assembly	14098942
Fuel Tank Sender Unit	25028199

Parts are currently available from GMSPO.

WARRANTY INFORMATION

Labor Operation Number: L1200

NOTE: Refer to applicable model year labor time guide for labor time.