Dukester68
Member
- Joined
- Sep 25, 2024
- Posts
- 36
- Reaction score
- 31
- Location
- Arizona
- First Name
- Gary
- Truck Year
- 1986
- Truck Model
- c2500
- Engine Size
- 350
Hello my square body experts! I have a 1986 c2500 GMC. It belonged to my FIL and we took ownership after he passed. Its a California 350 and only has 66,000 original miles. Its in beautiful shape and we are keeping it original. That being said i have a gauge issue. I have watched all the you tube vids and was pretty convinced it was the sender units. I have replaced both sender units and cleaned up the grounding areas on both sides and replaced the fuel lines. Im still getting wrong readings on my gauge when on the drivers side tank. The right side tank reads almost empty as it’s probably correct but when i switch the tank back over it only goes up to a quarter plus, it is full of fuel… I pull the connection on sender separately and both go to full on the gauge. I can hear it switching and it runs on either tank. Im stumped. I have left the bed backed out about a foot just in case i need to get back in there. I have swapped out the new senders but still get same results. Im not thinking its a gauge issue but im not sure. I have had the dash and gauges out when i had the dash redone. Could it be an issue at the tank selector switch under the truck? It switches but thats when the gauge fails…………Thanks on advance for the help…
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