Fuel Gauge

Fuel Gauge

I have a 1979 Cherokee 6-300. The right fuel gauge intermittently read high then eventually started reading 0.  At annual both fuel sending units were overhauled and insulated bushings were installed.  Now after flying for an hour and burning from 35 gallons on the right down to 20 the fuel gauge once again peggs high intermittently. It reads the proper amount when not pegged to the far right.  The mechanic just sat in the plane and it does it even with the plane sitting still with only the master switch on. He is puzzled as where to go next.  Any help or suggestions as how to troubleshoot the problem or any ideas as to what it could be.  Thanks Frank

Edited By: rinaldof@mac.com
2017-07-11 07:20:20

rinaldof@mac.com
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Re: Fuel Gauge

Hi Frank,
There are only two items left if you're certain that the senders work okay.  You're going to need to check the wiring and the fuel gauge.  Checking the gauge is easy.  Move the wiring from the working gauge to the suspected gauge.  If the reading is okay, it's the wiring.  If the reading on the good side is intermittent on the bad gauge, it's the gauge.  Good luck and let me know how it goes!

Scott Sherer
N344TB - Piper Seneca
Piper Owner Society Forum Moderator

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