Cherokee 2WD L6-4.0L VIN S (1998)
Fuel Tank One Way Valve: All Technical Service Bulletins
Fuel Tank - Rattling/Knocking/Gurgling Noises
NO: 14-06-98
GROUP: Fuel
DATE: Dec. 11, 1998
SUBJECT:
Fuel Tank Rattle
MODELS:
1997 - 1998 (XJ) Cherokee
SYMPTOM/CONDITION:
A rattling, knocking or gurgling noise may be present coming from inside the fuel tank. The noise can usually be heard with the tank between 3/4 and
full. The noise may be the anti-siphon check ball moving in the filler neck.
DIAGNOSIS:
This noise can be hard to diagnose because it is dependant on the amount of fuel in the tank. If customers complain of a rattling, knocking or gurgling
noise coming from inside the tank, perform the Repair Procedure.
PARTS REQUIRED:
1
05014530AA
Spring
REPAIR PROCEDURE:
This bulletin involves installing a spring that preloads the anti-siphon check ball the filler inlet in the fuel tank.
WARNING:
THE FUEL SYSTEM IN THIS VEHICLE IS UNDER CONSTANT PRESSURE EVEN WITH THE ENGINE OFF. THIS PRESSURE MUST BE
RELEASED PRIOR TO SERVICING THE FUEL TANK
1.
Disconnect the negative battery cable.
2.
Release the pressure from the fuel system. Refer to the appropriate service manual for this procedure.
3.
Raise and support the vehicle on a hoist.
4.
Remove the fuel tank skid plate, if equipped.
5.
Remove the fuel hose shield.
6.
Remove the tailpipe heat shield.
7.
Remove the fuel tank fill hose and vent hose at the fuel filler.
8.
Place a jack under the fuel tank to support it.
WARNING:
PLACE A SHOP TOWEL AROUND THE FUEL LINES TO CATCH ANY EXCESS FUEL.
9.
Disconnect the fuel supply line from the extension near the front of the tank.
10.
Disconnect the EVAP canister vent line.
11.
Disconnect the fuel pump module electrical connector.
12.
Remove the two fuel tank strap nuts and position the straps away from the tank.
13.
Carefully lower the right side of the tank while feeding the fuel fill and vent hoses through the opening. Keep the left side of the tank higher than
