DeVille DTS V8-4.6L VIN 9 (2002)
Tools Required
J 34730-1A Fuel Pressure Gauge
Important
The replacement fuel tanks listed in the Parts Information section come complete with the sending unit/fuel pump, hoses, pressure sensor, etc.
Important
This procedure takes into consideration that the EVAP emission canister was removed during the diagnosis; however, it does include
information on installation of the new EVAP emission canister.
1.
Lower the vehicle.
2.
Open the hood.
3.
Remove the fuel injector sight shield (engine cover).
^
On V6 supercharged engines, remove the nut and oil filter cap.
^
On V8 engines, remove the two nuts.
4.
Remove the rear seat cushion and disconnect the negative battery cable.
5.
Remove the fuel cap.
Caution
Gasoline and gasoline vapors are highly flammable. A fire could occur if an ignition source is present. Never drain or store gasoline or diesel
fuel in an open container, due to the possibility of fire or explosion. Have a dry chemical (Class B) fire extinguisher nearby.
Caution
Relieve the fuel system pressure before servicing fuel system components in order to reduce the risk of fire and personal injury.
After relieving the system pressure, a small amount of fuel may be released when servicing the fuel lines or connections. In order to reduce the
chance of personal injury, cover the regulator and the fuel line fittings with a shop towel before disconnecting. This will catch any fuel thank
may leak out. Place the towel in an approved container when the disconnection is complete.
6.
Remove the cap and connect the J 34730-1A, Fuel Pressure Gage, to the fuel pressure port and relieve the fuel pressure. For additional
information, refer to "Fuel Pressure Relief Procedure" in the appropriate Service Manual or in SI.
7.
Reinstall the cap on the fuel pressure port and install the engine cover and oil fill cap (V6 models only).
Tighten
^
Tighten the V8 engine cover nuts to 3 Nm (27 lb-in).
^
Tighten the V6 supercharged engine cover nuts to 2 Nm (18 lb-in).
8.
Drain the fuel tank. For additional information, refer to "Fuel Tank Draining Procedure" in the appropriate Service Manual or in SI.
Caution
To avoid any vehicle damage, serious personal injury, or death when major components are removed from the vehicle and the vehicle is
supported by a hoist, support the vehicle with jack stands at the opposite end from which the components are being removed.
9.
Raise the vehicle on a suitable lift and support as necessary.
10.
Remove the rear wheels.
11.
Release the retainers and remove the panel that covers the opening between the fuel fill pipe and the left rear wheelhouse.
12.
Loosen the clamp and disconnect the fuel fill pipe from the hose that is attached at the fuel tank.
13.
Remove the oxygen sensor from the exhaust pipe. When unscrewing the sensor from the pipe, allow the wiring on the sensor to "wind-up" inside
of the heat shield.
14.
Suitably support the exhaust system.
