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Joined: Jan 2002
Posts: 106
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Jan 2002
Posts: 106 |
What would the resistance be for the in-tank fuel sending unit in a 34 Chevy 3 window coupe?
Would it be the standard GM 0-90ohm?
33Master5W
34Master3W
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Joined: Jan 2002
Posts: 106
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Jan 2002
Posts: 106 |
The reason I'm asking is that I have a late model 0-90 ohm gauge in the dash and it appears that an empty tank displays as 1/2 full and when the tank is full..the gauge displays way beyond the full mark.
33Master5W
34Master3W
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Joined: May 2002
Posts: 6,149 Likes: 42
ChatMaster - 6,000
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ChatMaster - 6,000
Joined: May 2002
Posts: 6,149 Likes: 42 |
I would not be surprised if I am corrected but I think the sender unit from factory was about 30 ohms. This being the case I would suggest that there is extra resistance (bad connection) in your system causing a false reading.
Tony
1938 1/2 ton Hope to drive it before I retire
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Joined: Jan 2002
Posts: 106
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Jan 2002
Posts: 106 |
Thanks tonyw
Found a link that indicates the pre 65 GM were 0-30 ohm sending units. Just topped up the tank and the resistance is now 37 ohms at the tank.
I may just try increasing the inline resistance via RadioShack.
Thanks
33Master5W
34Master3W
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