Hello,

Last year my fuel gauge gave me a somewhat helpful three part reading of full/less full/ somewhat empty. This year however my gauge as been pinned to full. I understand this means that the sender wire must be cut. Is there a common place for this to occur? Just curious because at this point it is not important enough for me to climb under the coach again and search blindly for the wire.

Dan

Hello,

Last year my fuel gauge gave me a somewhat helpful three part reading of full/less full/ somewhat empty. This year however my gauge as been pinned to full. I understand this means that the sender wire must be cut. Is there a common place for this to occur? Just curious because at this point it is not important enough for me to climb under the coach again and search blindly for the wire.

Dan

Hello,

Last year my fuel gauge gave me a somewhat helpful three part reading of full/less full/ somewhat empty. This year however my gauge as been pinned to full. I understand this means that the sender wire must be cut. Is there a common place for this to occur? Just curious because at this point it is not important enough for me to climb under the coach again and search blindly for the wire.

Dan

Mat, Jeff Sirum sell new senders, he supplies them to me, I think Jim K. and about every dealer.  Keep the $ in the group.  All else you would need is a new seal which I think all the dealers can supply.  If you have gone through the crap to pull tjose gddhjbvffg ¥% ₩`¤♡♥♡%==₩₩₩~~% tanks, just replace the parts.

Dan,

The GM gauges of the period are all 3~90 ohm. For the fuel gauges they are 90 = full, 3 = Empty.
Personally, I think it was 5hi7 brain stupid.
If the lead gets broken, the gauge reports Full......

I kind of hate to tell you this, but the most common place for the system to go open is in the sender inside the tank.
So, try all the external connections first. Then use a jumper set to short the gauge lead to the frame and see if it goes to empty.

You can remove the sender and solder a wire lead from the top of the potentiometer to the terminal and it may work for about a year until the ethanol gets to the internal connections of the pot, there is no saving that one.

I am told there is a company in California that will rebuild them for a price that is better than new replacement, but that is all I know about that.

Matt




Dan wrote on Sat, 15 August 2015 11:57

Hello,

Last year my fuel gauge gave me a somewhat helpful three part reading of full/less full/ somewhat empty. This year however my gauge as been pinned to full. I understand this means that the sender wire must be cut. Is there a common place for this to occur? Just curious because at this point it is not important enough for me to climb under the coach again and search blindly for the wire.

Dan

Hey Matt

Here is a post from 2013 by John Hunt....

I was thinking it would be better to just replace the very old senders with new ones though the cost seemed kinda high. That was until I read several posts indicating replacement sender's quality leave something to be desired.

Though I live an hour away, I shipped my incredibly rusty and not-working senders to these guys here in Riverside CA: http://speedometershop.com

They are one of those shops that have been working on auto instruments since the '50s and used to calibrate equipment for race shops around Riverside Raceway back before it became a sea of tract homes.

They rebuilt my senders the same day they received them and had them back to me faster than I would have been able to drive back and get 'em. Price was a lot less than new senders, and mine seem to be working great. JWID.

John
Orange County, CA
'76 Eleganza II

1976 Eleganza II, 1969 Lotus Elan Plus 2, 1978 Merlyn Formula Ford, 1981 Lola Sports 2000.



Matt Colie wrote on Sat, 15 August 2015 19:23

Dan,

The GM gauges of the period are all 3~90 ohm. For the fuel gauges they are 90 = full, 3 = Empty.
Personally, I think it was 5hi7 brain stupid.
If the lead gets broken, the gauge reports Full......

I kind of hate to tell you this, but the most common place for the system to go open is in the sender inside the tank.
So, try all the external connections first. Then use a jumper set to short the gauge lead to the frame and see if it goes to empty.

You can remove the sender and solder a wire lead from the top of the potentiometer to the terminal and it may work for about a year until the ethanol gets to the internal connections of the pot, there is no saving that one.

I am told there is a company in California that will rebuild them for a price that is better than new replacement, but that is all I know about that.

Matt




Dan wrote on Sat, 15 August 2015 11:57

Hello,

Last year my fuel gauge gave me a somewhat helpful three part reading of full/less full/ somewhat empty. This year however my gauge as been pinned to full. I understand this means that the sender wire must be cut. Is there a common place for this to occur? Just curious because at this point it is not important enough for me to climb under the coach again and search blindly for the wire.

Dan