Fuel Guage trouble
#11
08-19-2010, 08:31 PM
How about \/ \/ \/ \/ \/ ?
Over simplified method: Drop the tank, pull the fuel pump assembly, replace the sending unit.
Unlike kick, I would diagnose the issue first. GM sending units are 0 to 90 ohms from full to empty. If you were to ground out the purple wire at the sender, it should cause the gauge to read full. If you disconnect the wire, it should read empty. Your truck has a fuel level buffer unit that could also be at fault. While I do agree that the sending unit is likely the problem, it pays to check out everything before going through the time/effort/expense of replacing a component without first verifying it is the cause of the issue.
Unlike kick, I would diagnose the issue first. GM sending units are 0 to 90 ohms from full to empty. If you were to ground out the purple wire at the sender, it should cause the gauge to read full. If you disconnect the wire, it should read empty. Your truck has a fuel level buffer unit that could also be at fault. While I do agree that the sending unit is likely the problem, it pays to check out everything before going through the time/effort/expense of replacing a component without first verifying it is the cause of the issue.
#13
08-19-2010, 09:50 PM
Removal & Installation (Except 1.6L & 2.0L)
1. Fuel pump is located in fuel tank and is integral with fuel sending unit assembly. Fuel pump must be
replaced with fuel sending unit as an assembly. Relieve fuel system pressure.Disconnect negative battery cable.
2. Raise vehicle and support vehicle. Disconnect fuel lines and electrical connections at fuel tank. Remove
fuel tank. Remove fuel sending unit assembly retaining ring or cam lock ring. Lift fuel sending unit
assembly from fuel tank. To install, reverse removal procedure using NEW "O" ring and gasket.
Although judging from your previous responses this could be out of your league. But it is not all that difficult if your willing to learn. Oh and drain the tank before removal its a lot easier that way.
1. Fuel pump is located in fuel tank and is integral with fuel sending unit assembly. Fuel pump must be
replaced with fuel sending unit as an assembly. Relieve fuel system pressure.Disconnect negative battery cable.
2. Raise vehicle and support vehicle. Disconnect fuel lines and electrical connections at fuel tank. Remove
fuel tank. Remove fuel sending unit assembly retaining ring or cam lock ring. Lift fuel sending unit
assembly from fuel tank. To install, reverse removal procedure using NEW "O" ring and gasket.
Although judging from your previous responses this could be out of your league. But it is not all that difficult if your willing to learn. Oh and drain the tank before removal its a lot easier that way.
#14
08-19-2010, 11:41 PM
*Moving to 2nd Gen Tech*
As stated, the fuel level sending unit is independently replaceable from the fuel pump assembly. It clips onto the side of the fuel pump assembly and is available under AC Delco PN SK1188 ($98). AC Delco PN G23 ($5) is the o-ring. And AC Delco PN TR9 ($7) is the lock ring which has a tendency to need replacing due to corrosion. All part numbers pulled from parts-catalog.ACDelco.com and verified via RockAuto.com. Lock ring & o-ring also available under Spectra PN LO91 ($12).
As stated, the fuel level sending unit is independently replaceable from the fuel pump assembly. It clips onto the side of the fuel pump assembly and is available under AC Delco PN SK1188 ($98). AC Delco PN G23 ($5) is the o-ring. And AC Delco PN TR9 ($7) is the lock ring which has a tendency to need replacing due to corrosion. All part numbers pulled from parts-catalog.ACDelco.com and verified via RockAuto.com. Lock ring & o-ring also available under Spectra PN LO91 ($12).
#15
08-20-2010, 03:11 PM
Over simplified method: Drop the tank, pull the fuel pump assembly, replace the sending unit.
Unlike kick, I would diagnose the issue first. GM sending units are 0 to 90 ohms from full to empty. If you were to ground out the purple wire at the sender, it should cause the gauge to read full. If you disconnect the wire, it should read empty. Your truck has a fuel level buffer unit that could also be at fault. While I do agree that the sending unit is likely the problem, it pays to check out everything before going through the time/effort/expense of replacing a component without first verifying it is the cause of the issue.
Unlike kick, I would diagnose the issue first. GM sending units are 0 to 90 ohms from full to empty. If you were to ground out the purple wire at the sender, it should cause the gauge to read full. If you disconnect the wire, it should read empty. Your truck has a fuel level buffer unit that could also be at fault. While I do agree that the sending unit is likely the problem, it pays to check out everything before going through the time/effort/expense of replacing a component without first verifying it is the cause of the issue.
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