fuel gauge ohms?
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Elder User
Joined: Jul 2008
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fuel gauge ohms?
I'm installing a custom gauge cluster in my 79 and would like to know the ohms of the fuel gauge I need to get. I have a rear mounted 19 gal. tank. I have three choices;
1. 73 ohms empty/ 10 full
2. 240 " empty / 33 full
3. 0 " empty / 90 full
Does anyone know which one I need??
1. 73 ohms empty/ 10 full
2. 240 " empty / 33 full
3. 0 " empty / 90 full
Does anyone know which one I need??
Post Fiend
Joined: Jan 2006
Posts: 5,037
Likes: 9
From: Kasson, Minnesota
#1 is the one you need. "The fuel tank sending units used on all Ford products up through 1986 have a resistance range of approximately 8-12 ohms full and 70-73 ohms empty" (copied from a Ford article).
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