Chevy G 506 Fuel Gauge Troubleshooting

[ludwigbraun]

Hey Guys,
Im trying to figure out whats upp with the fuel gauge on my G506- just got it last April.
When the ignition is turned on, needle moves and shows empty- I tested for voltage and have 6 volts on stud on empty side of gauge, zero on the other stud and zero at the sending unit.
When I read resistance across the sending unit terminals I get 4.8 Ohms.
Any ideas?
The ww 2 vehicle troubleshooting giude says the systems grounded could it be the gauge?
Thanks,
Bob J.

[Bill_Wolf]

An interesting diagnostics is found here about fuel gauges.

http://www.vernco.com/Sparks/id697.htm



While it is geared toward "girlie man" vehicles (jeeps) the theory does relate to the real man trucks, CCKW's.

Good Luck!

Bill

[dr deuce]

Make sure that the gauge and panel are grounded to the gauge case

[KEVINABR]

Another thought !! is the tank grounded to the frame ?? could be a bad connection