Lumina APV V6-191 3.1L (1990)
Fuel Gauge: All Technical Service Bulletins
Fuel Gauge - Poor Mileage Range
Number:
90-358-6C
Section:
6C
Date:
October 1990
Corp. Bulletin No.: 036304
Subject:
FUEL TANK SENDER ASSEMBLY CALIBRATION/POOR MILEAGE RANGE
Model and Year:
1990 U VAN (APV)
TO:
ALL CHEVROLET DEALERS
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.
Part Name
Part Number
Fuel Tank Assembly
14098942
Fuel Tank Sender Unit
25028199
Parts are currently available from GMSPO.
Labor Operation Number:
L1200
REFER TO APPLICABLE MODEL YEAR LABOR TIME GUIDE FOR LABOR TIME.