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britteasy
New User
Jun 13, 2008, 6:25 AM
Post #1 of 2
(1690 views)
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I have a 1992 Ford Ranger with a 3.0 engine and the fuel gauge won't work when i unplug the connector the gauge goes to the full mark so i tried putting a different sending unit and checked the connector plug but there is no corrosion is there anything else i can do to fix the fuel gauge.
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DanD
Veteran
/ Moderator
Jun 13, 2008, 9:22 AM
Post #2 of 2
(1684 views)
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Make sure that the fuel tank and the sending unit have a good connection to ground. If you’re unsure; add a jumper wire between the sending unit and the body.
If that doesn’t do anything; remove the instrument cluster and test the fuel gauge circuit leading into the cluster. You’ll have to also remove the tank unit again but leave it connected electrically; so that you can work the sending unit’s float arm.
You’ll need to find terminal 12 of connector A of the cluster plugs; it should be a yellow/white wire.
Connect an ohmmeter to terminal 12 and ground. With the float at the empty position there should be approximately 22 Ohms; at the full position approximately 145 ohms.
If you’re getting these readings; the problem is in the instrument cluster’s “slosh module” or the gauge itself. A slosh module is there to slow the sending until signal down so that the gauge doesn’t do a dance every time you slow down or speed up; causing the fuel to slosh around.
If this is the case and I’m not sure on this but I don’t think the gauge or the slosh module are serviceable without replacing the cluster.
Dan.
Canadian "EH"
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