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What a pain

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jlaird

jlaird

Great Pumpkin
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My gas guage was working, showed a 1/4 of a tank which was about correct.

Then it went to full then nothing and blew a fuse.


Now although I have power to the guage, nothing, nothing at all. I think I will soon be in the market for a new fuel guage. sigh.

Hay, look at it this way, Miss Agatha is going to be a new car and she is loveing it.
 
That is better than my method of shaking the arse back and forth by the rollbar. /bcforum/images/%%GRAEMLIN_URL%%/blush.gif
 
Bet you got a bad ground issue on the tank sender.
 
Patrick, we use the same method -- who'd a thunk it? /bcforum/images/%%GRAEMLIN_URL%%/grin.gif

I'm pretty sure my issue is at the tank, that's a project for next month.
 
Drew:

I never would have thunked it. You are correct it most likely is.

Patrick
 
Have good solid input from the tank wires, think it just died hehe is 48 years old and never been kissed. Darn shame too, it looks just fine.
 
Any one have a nasty old working gage they would be willing to part with, the nastyer the better as long as it works. I would like to have one to test with.

Hmmm, maybe I should take this one apart, might learn something.
 
GB1 said:
That is better than my method of shaking the arse back and forth by the rollbar. /bcforum/images/%%GRAEMLIN_URL%%/blush.gif
Click to expand...

It's a lot more positive if you use a length of dowel as a dip stick!!

Jack I have a guage you can have. PM me if you want me to send it!
 
Jack, while you're at it, could you tell me what the wires back there connect to? Using the "original" harness, I've got three lines going to the guage: one is ground, and then the other two. Unfortunately, I am not clear as to which one goes where.

Thanks.
 
I think you should have hot, ground, and light bulb if I remember correctly (not looking at the car right now, and can't quite remember.
 
The green and the green brown go to the guage, the black near the guage attaches to the center terminal, it is just ground. All black are ground.


Think about this, the black green goes all the way back to the sending unit that is grounded to the tank which in turn is grounded to the body.

The green is a hot wire and goes to the fuse box. There are three greens that go to the fuse box.

Brake switch

Fuel gage and Heater switch

Flasher, wiper motor.
 
Jack
You may try to disconnect the wire from the tank sender and LIGHTLY and quickly scratch it across a ground somewhere to check if the gauge moves. Those gauges don't go bad too often, I'm betting on a questionable connection or maybe a bad ground at the tank.
Bill
 
yep, that is what I thought so rang out the entire system, all checks good ground.
 
Jack's description makes more sense than mine. /bcforum/images/%%GRAEMLIN_URL%%/grin.gif

I really should look these things up first...
 
Ha Drew, I have had much experience with this circut today.
 
My gauge shows 1/4 full pretty much all the time. I'm almost certain the float is stuck. Haven't been into the wiring since I put the new harness in, but I'll be there again soon when I drop the tank this spring to get it cleaned out.
 
Drew the Tunebug is old enough to have a new sending unit in any case as long as you are going to drop the tank. Ring the ground after you install it to the tank then again after you put the tank back and before you clean up.
 
That's one of the reasons I'm going to drop the tank. I figure a new sending unit and a cleaned up ground to go along with the cleaned up tank. Might as well do it while it's out.
 
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