85 ranger help
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Joined: Jan 2013
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From: VA
Don't know where your tank is, but there's a simple gauge test for pre-fuel injection ford trucks. On my 68 and 69 F100's, and on my 69 F250, the gauge was in the cab behind the seat. To test those, you pulled a wire off the sending unit on top of the tank and grounded it...if the gauge needle swept all the way to full, you knew your gauge was good and something was wrong with the float (not floating right) or the sending unit (dirty resistance unit). Both were simple fixes, but don't know if this will work with your 85...it should have a low-pressure, mechanical fuel pump, but the fuel tank could be underneath where it might be hard to get to the sending unit wires.
The wire from your gauge on the dash to the sending unit in the tanks should be yellow/white.
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manram
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
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Dec 24, 2014 10:00 PM
