Gas Gauge issue - needle bouncing?
#1
Registered
Thread Starter
Join Date: May 2003
Location: Ada, MI
Posts: 147
Likes: 0
Received 0 Likes
on
0 Posts
![Default](/forums/images/icons/icon1.gif)
Anyone have any ideas why my gas gauge needle is bouncing regardless of how much gas is in the 100 gal. tank. I opened my dash panel thinking maybe a loose wire, but everthing was tight. I have to find access to the sending unit to see if those wires are tight. What else could it be?
My guages are Gaffrig which were made by Livorsi prior to name change. If it is the gauge I would like to have it repaired as opposed to buying a new one because I would like to have the names match.
Thanks for the advice.
My guages are Gaffrig which were made by Livorsi prior to name change. If it is the gauge I would like to have it repaired as opposed to buying a new one because I would like to have the names match.
Thanks for the advice.
#2
Registered
Join Date: Aug 2006
Location: Taylorsville, KY
Posts: 55
Likes: 0
Received 0 Likes
on
0 Posts
![Default](/forums/images/icons/icon1.gif)
I think you may be on to something with your sending unit. Does it bounce when moving or all of the time? If it bounces only when you are moving (like mine) I would have to say it is just moving with the sloshing of the gas. If it bounces all of the time there maybe a problem with the sending unit although, if the gauge works, the sending unit wouldn't be bad. You could have some corrosion on the wire ends causing a bad connection. Good luck and let us know what the out come is.
Anthony
Anthony
#4
Registered
![](https://www.offshoreonly.com/forums/images/icons/gold_member_star.gif)
![Default](/forums/images/icons/icon1.gif)
Take a piece of wire and jump the positive terminal of your tach to the sender terminal of the tach for a split second. If your tach maxes out and returns to 0 its ok. Next locate and remove your tank sender, re-attach the wires to the sender and test it while observing the gauge. If it functions properly then it has probably become sloppy with age and should be replaced. You should also make a new ground connection at the sender.
There are several different styles of fuel senders, some are better than others, do some homework, don't just buy the generic sending unit at west marine first as it may not be the best choice.
There are several different styles of fuel senders, some are better than others, do some homework, don't just buy the generic sending unit at west marine first as it may not be the best choice.
Last edited by Trippin; 06-30-2007 at 09:32 AM.
#5
NO WAKE ENFORCER
![](https://www.offshoreonly.com/forums/images/icons/platinum_member_star.gif)
Join Date: Mar 2004
Location: Dayton, Oh
Posts: 1,221
Likes: 0
Received 0 Likes
on
0 Posts
#7
Registered
Join Date: Jan 2003
Location: Castle Rock, Colorado
Posts: 112
Likes: 0
Received 0 Likes
on
0 Posts
![Default](/forums/images/icons/icon1.gif)
I had that same problem. The gauge became eratic in the fall. The following spring they didn't work at all. New floats on the sender and no more problem. I'm thinking the floats started absorbing gas and became eratic in the tank.
Pat
Pat
#8
Registered
Thread Starter
Join Date: May 2003
Location: Ada, MI
Posts: 147
Likes: 0
Received 0 Likes
on
0 Posts
![Default](/forums/images/icons/icon1.gif)
I checked the sending unit today and the ground wire was a little lose. I disconnected both wires and cleaned up with steel wool. That seems to have done the trick. I filled the tank gas on my way back to marina today so I will see how it goes the next outging. Thanks for the suggestions.
Thread
Thread Starter
Forum
Replies
Last Post
Bryan Rose
General Q & A
10
01-26-2007 04:35 AM
US1 Fountain
General Q & A
10
04-06-2005 09:55 PM