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C. J. Klingman
 
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Default Fuel gauge problem with 4winns


"MGrant0606" wrote in message
...
Have 1994 4wins 190. Fuel gauge reads half full when full. Replaced fuel

sender
in tank. Still reads half full when full. Gauge moves full swing from way

below
"E" to half full. Gauge moves proper distance just not in the proper

place.
Is there a calibration screw or adjustment behind the fuel gauge. Looks

like
dash guages are in a "pod" or one solid unit. If so How do you get the

gauges
out without destroying them
Comments or suggestions welcomed.
Mike in NH


Take the wires loose from the sender. The sender should read about 30 ohms
with arm up (full tank), about 240 ohms with the arm full down (empty tank).

If the above conditions are met, go next to the wiring and the gauge.

If the gauge won't read above half scale, then it's not getting a low
resistance sent to it (or of course, the gauge may be bad). May just be
corrosion on the terminals of the sender or the gauge. Measure sender
signal at gauge. Clean ring tongues, etc.

The gauge should be powered by an ignition-switched +12VDC, but wouldn't
expect this to be a problem. The only ground going to the gauge should be
the one from the sender.

C. J. Klingman
Austin, TX