Quick troubleshooting of constant Empty reading:
1. Remove the wire from the gas tank sending unit.
2. Turn on the key.
3. If the gauge now reads Full go to step 99.
4. Turn off the key.
5. Replace the wire removed in step 1.
6. Remove the wire that goes to the tank from
the back of the gauge. (Sorry, I don't
know what color it is on a Chevy).
7. Turn on the key.
8. If the gauge now reads Full go to step 20.
9. Turn off the key.
10. The gauge is defective. Replace it and all
should be well.
20. Turn off the key.
21. There is a short to ground of the wire between
the gauge and the tank. Either find and fix
the short or it may be easier to completely
replace this wire with a new one.
30. Turn off the key.
31. Either the sending unit in the tank is shorted or
the float in the tank has sunk. Either way you
will have to remove the sending unit to fix it.
Stock sending units read about 30 ohms full and
almost zero ohms empty.
-----Original Message-----
From: Mikerross@aol.com [mailto:Mikerross@aol.com]
Sent: Wednesday, January 10, 2001 9:06 PM
To: oletrucks@autox.team.net
Subject: [oletrucks] Fuel Gauge Question
During the restoration of my '56 Chevy Truck I replaced the fuel sending
mechanism inside the fuel tank, I ran new wires to the fuel gauge and
everything has worked fine for the past 5 months. Now suddenly my gauge
reads empty ("E") all the time.
When I turn the ignition to the "off" position the gauge needle falls lower
below "E", below empty. When I turn the ignition "on" it jumps to empty.
This leads me to believe my electrical connections are OK?
I've checked to ensure the wires are all connected at the fuel tank and at
the gauge.
Is their supposed to be a grounding wire coming off the fuel tank?
I would appreciate any thoughts/ideas.
Thanks.
Mike
'56 Chevy Truck
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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