Erradic fuel level reading with Ricks tank

[DB Z28]

i have the same problem

[z066]

mine did the same and still does we even went thru a few different senders.

[Vegas69]

I have a few gallons in my tank and it reads dead empty. I checked the resistance and it .5 ohms. Looking like my sender is junk as well.

[dhutton]

Is the issue that the level in the sump is changing or is it just that the sender is bouncing around in the tank. If the sender is just bouncing around in the tank I think an electrolytic capacitor from the sender line to ground might help filter out some of the bouncing.

Try a 1000 uF capacitor with a voltage rating of at least 24 volts and see if this helps. Make sure you get the polarity correct, plus to the sender and minus to ground.

Here's one from Radio Shack:

http://www.radioshack.com/product/in...entPage=family

If it's still moving too much you could try this 4700 uF part:

http://www.radioshack.com/product/in...entPage=family

I have a Rick's tank too but I haven't connected the sender to the fuel gauge yet.

Don

[Stuart Adams]

I've had the same problem before, I thought that was normal.

[gearheadgarage]

Same story here.....great to 1/4 tank, sloppy all over the board under that level, with 4-5 gallons to spare

[Vegas69]

I found out the problem. I pulled my tank to do some re plumbing and called Hector. They design the tank so the sender is farther off the floor than it probably should be. I had 4 gallons in mine when I drained it and pegged on empty. I checked the sender with my ohmeter and it works fine. I bet what's happening is once you get down to around 5 gallons the float isn't submerged and the sloshing fuel is having a field day with your gauge and soon to be our gauges.