Calais L4-151 2.5L VIN U TBI (1989)
Fuel Pressure: Technical Service Bulletins
Fuel Pressure Relief - Procedure Update
NUMBER:
91-T-140
CORP.REF.NO: 136301R
DATE:
June 1991
SECTION:
6A,6C,6E2,6E3
SUBJECT:
SERVICE MANUAL UPDATE FUEL PRESSURE RELIEF REVISED PROCEDURE
MODELS/YEARS:
1989-91 CUTLASS CALAIS, CUTLASS CIERA AND
CUTLASS CRUISER W/2.3L, 2.5L & 3.3L (VIN A,D,U,R,N) ENGINES
This information replaces Fuel System Pressure Relief Procedures found in the following service manuals:
1989-91 Cutlass Ciera/Cruiser with 2.5L (VIN R) 1989-91 Cutlass Calais with 2.5L (VIN U) 1991 Cutlass Calais with 2.3L (VIN A and D) and 3.3L
(VIN N)
CAUTION: To reduce the risk of fire and personal injury, relieve the fuel system pressure before servicing fuel system components. After relieving
system pressure, a small amount of fuel may be released when servicing fuel lines or connections. To reduce the chance of personal injury
cover fuel line fittings with a shop towel before disconnecting, to catch any fuel that may leak out. Place the towel in an approved container
when disconnect is completed.
Fuel pressure relief procedure:
1989-91 2.3L (VIN A and D) and 2.5L (VIN R and U)
1.
Loosen fuel filler cap to relieve tank presssure (Do not re-tighten at this time).
2.
Raise vehicle.
3.
Disconnect fuel pump electrical connector.
4.
Lower vehicle.
5.
Start engine and run until fuel supply remaining in fuel pipes is consumed. Engage starter for 3.0 seconds to assure relief of any remaining
pressure.
6.
Raise vehicle.
7.
Connect fuel pump electrical connector.
8.
Lower vehicle.
9.
Disconnect negative battery terminal to avoid possible fuel discharge if an accidental attempt is made to start the engine. 3.3L (VIN N)
Tool required: J 34730-1, Fuel Pressure Gage.
1.Disconnect negative battery terminal to avoid possible fuel discharge if an accidental attempt is made to start the engine.
2.Loosen fuel filler cap to relieve tank pressure (Do not re-tighten at this time).
3.Connect J 34730-1 to fuel pressure connection. Wrap a shop towel around fitting while connecting gage to avoid spillage.
4.Install bleed hose into an approved container and open valve to bleed system pressure. Fuel connections are now safe for servicing.
5.Drain any fuel remaining in gage into an approved container.
