Century V6-231 3.8L (1985)
Fuel Level Sending Unit: All Technical Service Bulletins
Fuel - Extended Crank, Driveability/Low Fuel Pressure
Bulletin 85-6E-23
Date
Nov. '85
Ref. No.. 85-305-6E
SUBJECT:
EXTENDED ENGINE CRANKING TIME AND/OR VEHICLE DOES NOT MAINTAIN FUEL RAIL PRESSURE
MODELS AFFECTED:
1984 AND 1985 VEHICLES EQUIPPED WITH PORT FUEL INJECTED ENGINES
FUEL SENDER PULSATOR
Some 1984 and 1985 vehicles equipped with Port Fuel Injected Engines, may experience extended engine cranking time, poor driveability, won't stay
running, and/or may not maintain fuel rail pressure.
Chart A-7 in section 6E3 of the Buick Chassis Service Manual states that, while performing the Fuel System Diagnosis procedure, if the fuel rail pressure
does not hold, but will maintain pressure while pinching the pressure line flex hose, the problem is either a leaking pump coupling hose or a faulty
