C1 fuel gauge fluctuations

[Richard W.]

1962 Fuel gauge seems fine until headlights, turn signals or brake lights are applied. It then advances from 1/4 to 1/2 tank fuller.
I saw this question on past forums but was unable to access the responses.

[Bruce W.]

Re: C1 fuel gauge fluctuations

1962 Fuel gauge seems fine until headlights, turn signals or brake lights are applied. It then advances from 1/4 to 1/2 tank fuller.
I saw this question on past forums but was unable to access the responses.

Richard, gas guage has a bad ground. Very typical Try regrounding the tank
Bruce

[Richard W.]

Re: C1 fuel gauge fluctuations

So it would be the ground from the sending unit on the tank?

[Frank D.]

Re: C1 fuel gauge fluctuations

Here is the fix for this classic C1 problem by John Hinckley...

[Richard W.]

Re: C1 fuel gauge fluctuations

Fantastic. Thank you very much! This form and the NCRS are great. Some of my hot rod buddies have yet to learn what a great resource NCRS is.

[Roger W.]

Re: C1 fuel gauge fluctuations

Yes. A great resource. Many problems that seem to have no solution or a complicated solution have been experienced by other very smart NCRS members. They have figured out how to solve these problems and they are happy to help out other members.

[John F.]

Re: C1 fuel gauge fluctuations

[John F.]

Re: C1 fuel gauge fluctuations

Above picture shows how I soldered a ground wire to the sending unit, and then the other end to ground.