This is a common problem and to correct this problem will require the replacement of the fuel sending unit. The fuel sending unit is inside the fuel tank and has the fuel pump mounted in it. This requires the removal of the gas tank and then the fuel sending unit can be removed from the tank.
1.Disconnect the negative battery cable.
2.Relieve fuel system pressure.
3.Remove fuel filler cap to release fuel tank vapors. Leave cap off until repairs are completed. Gasoline fuel vapors are extremely flammable. Ensure that fuel is stored in a container that can be properly sealed. Never store fuel in an open container. Store container in a safe place away from heat.
4.Remove fuel tank by performing the following:
1.Step 1: Drain fuel from the tank into an approved container for storage.
2.Step 2: Raise and safely support the vehicle.
3.Step 3: Remove rear stabilizer bar at links, pivot bar downward.
4.Step 4: Remove hoses and pipes from tank unit.
5.Step 5: Remove hoses at tank from filler and vent pipe.
6.Step 6: Disconnect tank unit harness from rear body harness.
7.Step 7: Support fuel tank and disconnect 2 fuel tank retaining straps.
8.Step 8: Remove tank from vehicle.
5.Remove sending unit, gasket and pump assembly by turning cam lock ring counterclockwise. Lift assembly from fuel tank and remove fuel pump from fuel tank sending unit.
6.Pull fuel pump up into attaching hose while pulling outward away from bottom support. Take care to prevent damage to rubber insulator and strainer during removal. After pump assembly is clear of bottom support, pull pump assembly out of rubber connector for removal. To install:
7.Push fuel pump assembly into attaching hose.
8.Install fuel tank sending unit and pump assembly into tank assembly. Use new O-ring seal during reassembly.
9.Install cam lock over assembly and lock by turning clockwise.
10.Support tank and position in vehicle. Install tank straps and secure with retaining bolts. Tighten to 25 ft. lbs. (33 Nm).
11.Connect tank unit harness to body harness.
12.Connect hoses to filler and vent pipes. Tighten clamps.
13.Connect hoses and pipes to tank unit.
14.Connect rear stabilizer bar to links. Tighten bolts to 42 ft. lbs. (58 Nm).
16.Refill tank and install filler cap.
17.Connect negative battery cable.
18.Start engine and check for leaks