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My 1995 ford ranger fuel gauge isn't working how do i trace the problem?
Wiki User
∙ 9y ago
This is a common problem that occurs in the Ranger. In order to track down the problem you must first make sure ALL fuses, main bus fuses and fusible links are good. One good indicator that you are getting power to the instrument cluster is that all the other gauges are working. The next step is to remove the harness from the fuel pump/sending unit that is mounted on top of the gas tank. You'll have to remove 6 bolts from inside the bed... I think they are #55 torx bit. After removing the bed bolts, pick up on the drivers side of the bed and place a block between the bed and the frame to hold it up. (Please be careful when working under a propped up bed..hahhah)
Now you can see all the CRAP and moisture that has built up around the Connector on top of the gas tank. (The connector is inside the big round flange thingy when looking toward the cab.) Clean out all the mud and grit and moisture... unplug the connector and clean it really good. Feel free to use compressed air.
While you're under there, look at the fuel filler hose. Is it cracked??? Yep, another problem with this model. The fuel filler hoses are bad to crack near the gas tank, causing a fuel leaks while refuelling.
After a thorough cleaning of the connector, reconnect the harness and turn the ignition switch to "on". Does the fuel gauge work? If yes, bolt the bed back on and pat yourself on the back.
If not, keep reading.
With the ignition switch on, ground the white wire to the frame and watch the fuel gauge. Did it go to the full position? If no, skip to the next paragraph. If yes, you should replace the fuel level sending unit and the fuel pump. (might as well get 'em both while you're in there) Remove the large flange on top of the gas tank and pull out the pump and float unit. Replace the suggested parts and your gauge will work again.
If the gauge did not work when you grounded the white wire to the frame, you will have to replace the gauge. :-(
One more obvious thing to check as I had this same problem. Checked each item as described. Note: my white wire was Yellow/black and ground was black. Gauge indicated full with power applied when Yellow/Black and Black were grounded. I pulled the Sending Unit/Fuel Pump and took the float variable resistor mechanism apart and cleaned all of the contacts with eraser, (from my old electric car race track days). I fixed sending unit on my boat this way. Reassembled but it still displayed empty with key on. Took it apart one more time and noticed the float seemed heavier than I would have expected. THE FLOAT WAS FULL OF FUEL! The gauge won't work if the float don't float. Drilled a hole on it, shook the fuel out, hit it with a hair dryer to get all of the fuel out then covered the drilled hole and leak/crack hole with Steel Weld. You can fix an engine block with this stuff and it's not gas soluble. Saved myself over $90 for a new sending unit.
Wiki User
∙ 9y ago
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