Grand Prix V6-3100 3.1L MFI VIN M (1994)
1.
Negative battery cable.
2.
Relieve fuel system pressure. Refer to Fuel System Pressure Relief Procedure.
3.
Drain fuel tank.
4.
Remove fuel tank. Refer to Fuel Tank Assembly Remove & Replace.
5.
Locate tank in a suitable work area away from heat, flame or other source of ignition.
6.
Quick-connect fittings at fuel sender feed and return pipes: Grasp fuel sender feed tube and fuel feed pipe quick-connect fitting. Twist
quick-connect fitting 1/4 turn, in each direction to loosen any dirt within quick-connect fitting. Repeat for other fitting.
CAUTION: Safety glasses must be worn, when using compressed air, as flying dirt particles may cause eye injury. Using compressed air, blow
out dirt from quick-connect fittings.
7.
Quick-connect fittings: Squeeze plastic tabs of male end connector and pull connection apart. Repeat for other fitting.
NOTE: If it is necessary to remove rust or burrs from the fuel sender pipes: use emery cloth in a radial motion with the tube end to prevent
damage to O-ring sealing surface. Using a clean shop towel, wipe off male tube ends. Inspect all connectors for dirt and burrs. Clean or replace
components/assemblies as required.
8.
Retaining clip from vapor pipe and fuel feed and return pipe/hose assemblies. Note position of retaining clip for installation.
9.
Vapor pipe from insulator clips (2). Note position of vent pipe for installation.
10.
Insulation clips (2) and chassis to fuel sender feed and return pipe/hose assemblies from fuel tank.
11.
Desired chassis to fuel sender pipe/hose assembly to be replaced from insulation clips (2). Note position of chassis to fuel sender pipe assembly to
be replaced for installation.
INSTALL:
CAUTION: To Reduce the Risk of Fire and Personal Injury: Before connecting fuel line fittings, always apply a few drops of clean engine oil to
the male tube ends. This will ensure proper reconnection and prevent a possible fuel leak. (During normal operation, the O-rings located in the
female connector will swell and may prevent proper reconnection if not lubricated.) DO NOT attempt to repair sections of nylon fuel lines. If
damaged, replace.
1.
Position new chassis to fuel sender pipe/hose assembly on insulator clips (2) as noted during removal.
2.
Insulator clips (2) and chassis to fuel sender feed and return pipe/hose assemblies on fuel tank.
3.
Position vapor pipe on insulator clips (2) as noted during removal.
4.
Install retaining clip on vapor pipe and chassis to fuel sender feed and return pipe/hose assemblies as noted during removal.
5.
Chassis to fuel sender feed and return pipe/hose assemblies quick-connect fittings:
a.
Apply a few drops of clean engine oil to the male tube ends.
b.
Push connectors together to cause the retaining tabs/ringers to snap into place.
c.
Once installed, pull on both ends of each connection to make sure they are secure.
d.
Repeat for other fitting.
6.
Fuel tank.
7.
Add fuel and install fuel filler cap.
8.
Negative battery cable.
9.
Turn ignition switch to "ON," position for two seconds, then turn to "OFF" for ten seconds. Again turn to "ON" position, and check for fuel leaks.
10.
Perform the "Idle Learn Procedure." The PCM will need to relearn the IAC valve pintle position following battery reconnect.
CHASSIS FUEL PIPES:
NOTE: When replacing fuel pipes, always replace them with original equipment or parts that meet the GM specifications for those parts. The
replacement pipes must have the same type of fittings as the original pipes to ensure the integrity of the connection. DO NOT use copper or aluminum
tubing to replace steel tubing. Only tubing meeting the 124M specification or its equivalent is capable of meeting all pressure and vibration
characteristics necessary to ensure the durability standard required.
When replacing fuel hoses or repairing fuel pipes with hoses, always replace them with original equipment or parts meeting GM specifications, use only
reinforced fuel-resistant hose which is identified with the word "Fluoroelastomer" or "GM 6163-M" on the hose. Inside hose diameter must match
outside pipe diameter. DO NOT use rubber hose within 100 mm (4") of any part of the exhaust system or within 254 mm (10") of the catalytic converter.
A minimum of 13 mm (1/2") clearance must be maintained around sharp edges such as flanges, pinch welds, etc., to prevent contact and chaffering, A
minimum of 19 mm (3/4") clearance must be 4 maintained around all moving parts.
REMOVE OR DISCONNECT:
1.
Relieve fuel system pressure.
2.
Quick-connect fittings at engine fuel pipes: Grasp chassis feed pipe and engine compartment connecting fuel feed pipe quick-connect fitting.
Twist quick-connect fitting 1/4 turn in each direction to loosen any dirt within quick-connect fitting. Repeat for other fitting.
