Fuel gauge problem
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Fuel gauge problem
I drive a 1993 Ford F350 cab on an F550 chassis with a 7.3L engine.
I have a 20 gallon tank. Don't ask. I didn't do the cab change. It was like that when I bought it.
Has anyone measured the resistance in ohms of the fuel gauge sender in both the full and empty positions. I need the resistances to trouble shoot the gauge system.
My gauge is now pegged out full. I assume that Ford uses the same sender for most of it's fuel systems but of course that is a guess. I'd rather have the right
resistance but I'll take any readings that you've may have made to give me a start in trouble shooting the system.
I have a 20 gallon tank. Don't ask. I didn't do the cab change. It was like that when I bought it.
Has anyone measured the resistance in ohms of the fuel gauge sender in both the full and empty positions. I need the resistances to trouble shoot the gauge system.
My gauge is now pegged out full. I assume that Ford uses the same sender for most of it's fuel systems but of course that is a guess. I'd rather have the right
resistance but I'll take any readings that you've may have made to give me a start in trouble shooting the system.
Thread Starter
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Junior User
Joined: Dec 2009
Posts: 67
Likes: 0
I'm confused
22 ohms is closer to a dead short circuit than the full resistance reading sent in the other reply. Am I missing something? If 22 ohms is the reading for an empty tank, then wouldn't a short circuit being even lower like zero ohms, push the needle toward "E"? Please explain. Maybe I'm looking at it wrong.
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