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72 5500 · 04-28-2013, 08:07 AM

Before I sent the gauge out for repair, I bench tested the gauge and sending unit with a 12 volt battery. I wired it up as if it was in the truck and moved the float. No movment of the needle. With no power, the needle moves freely and when power is added, the needle goes to E. I did the same test yesterday with the same results.

I tested the sending unit with a OHMs meter and it is working correctly. 30 OHMs of resistence when float is in the full position and 0 OHMs when in the empty position. This makes me believe I still have a bad gauge.

04-28-2013, 08:07 AM	#12
72 5500 Registered User Join Date: Apr 2010 Location: Canaan Ct Posts: 105	Re: Gas gauge blues Before I sent the gauge out for repair, I bench tested the gauge and sending unit with a 12 volt battery. I wired it up as if it was in the truck and moved the float. No movment of the needle. With no power, the needle moves freely and when power is added, the needle goes to E. I did the same test yesterday with the same results. I tested the sending unit with a OHMs meter and it is working correctly. 30 OHMs of resistence when float is in the full position and 0 OHMs when in the empty position. This makes me believe I still have a bad gauge.