Fuel Gage - Won't Read Below 1/4 Tank

CHEVROLET NUMBER: 86-T-216

SECTION: 6C - Engine Fuel

DATE: January, 1987

SUBJECT: FUEL GAGE WON'T READ BELOW 1/4 TANK

MODELS: 1986 C, K PICKUP TRUCKS

FIQURE NO. 1 - FUEL TANK ASSEMBLY:

Some late built 1986 C/K trucks may have been built with 1987 fuel tanks. The 1987 fuel tank contains a fuel baffle which can cause interference with the fuel sender float arm and not allow the fuel gage to read below 1/4 tank of fuel. If the truck is equipped with dual fuel tanks, this condition can occur in either tank. If this condition is encountered, the fuel tank must be replaced. The 1987 fuel tanks can be identified by removing the fuel tank and fuel tank sender and checking for the reservoir (plastic) which is attached to the bottom of the tank by two studs which are approximately 4" from the center of the fuel sender unit, See Figure No. 1. Refer to section 6C-Fuel System for fuel tank removal and reinstallation procedures.
PARTS INFORMATION

Part
Number Description Application Quantity

14071994 Fuel Tank 1986 C,K 1,2,3 1
right hand, left hand all engines 16 gallon tank

14071984 Fuel Tank 1986 C,K 1,2,3 1
right hand, left hand all engines 20 gallon tank