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**The Rocknrod** · 04-05-2021, 11:01 AM

Just in case anyone wants to know For Sure. Looking at the back of the fuel gauge (my 64 C10) from the rear, the sender wire is on the left the 12V wire goes on the right.
I forget who I purchased the gauge from but they were swapped.
If you have continuity everywhere as I have, it will then work correctly.
Made it easier with the sender in hand in the cab running test leads and all to find the issue.
Latter, just to make sure I ran test leads from the sender in hand back to the tank area thru the wires on the truck harness to ensure it works properly.

04-05-2021, 11:01 AM	#23
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: Fuel Gauge at Full Just in case anyone wants to know For Sure. Looking at the back of the fuel gauge (my 64 C10) from the rear, the sender wire is on the left the 12V wire goes on the right. I forget who I purchased the gauge from but they were swapped. If you have continuity everywhere as I have, it will then work correctly. Made it easier with the sender in hand in the cab running test leads and all to find the issue. Latter, just to make sure I ran test leads from the sender in hand back to the tank area thru the wires on the truck harness to ensure it works properly. Attached Images __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats? Last edited by The Rocknrod; 04-05-2021 at 02:54 PM.