Case 1840 fuel level LED's

Help Support SkidSteer Forum:

Frank Y

Member
Joined
Feb 15, 2009
Messages
7
Has anyone figued out a solution to the "always full" on the fuel level gauge. My wire is disconnected at the fuel sender. With the machine off I have about 4 ohms resistance at the wire. With the ignition switch on I have about 7.5 volts at the wire. I removed a pin connector from the harness which I think was the correct wire on the control panel and still have a full reading on the LED's. Any advice?
 

goose

Active member
Joined
Apr 12, 2008
Messages
43
With the sender wire off the gauge should read full. With everything hooked bak up except the wire at the sender, touch the wire to a good ground for a while 15-20 second the gauge should start to go down. If it does not the wire could be broken between the sender and the panel. If the gauge does go down you have a bad level sender. There is a delay in the gauge when the wire is grounded out to compinsate for fuel slooshing.
 
OP
OP
F

Frank Y

Member
Joined
Feb 15, 2009
Messages
7
With the sender wire off the gauge should read full. With everything hooked bak up except the wire at the sender, touch the wire to a good ground for a while 15-20 second the gauge should start to go down. If it does not the wire could be broken between the sender and the panel. If the gauge does go down you have a bad level sender. There is a delay in the gauge when the wire is grounded out to compinsate for fuel slooshing.
OK, first thing I did was remove the wire back off the plug to make sure the wire wasnt broken and to make sure I had the right wire. Checked ok. So I reinstalled everything on the control panel and checked ground from the sender housing to the starter to be sure. Checked ok. Checked from the sender housing to the fuel tank. Checked ok. Checked ground from the sender terminal to the tank. Nothing (at half tank of fuel). Then took a jumper wire and clipped to the sender wire and to the starter. SURE ENOUGH the LED's went off to the lowest level and the bottom one was flashing for low fuel. Unhooked the wire and they went back on. COOL! I did this a couple times out of amusement and amazement (yeah im that simple). I never saw them work before so I was glad to see them working correctly. And I like when my machines are working as they were from new. Drained the tank low enough that the sender was removable and pulled the sender. Checked the senders resistance and it showed infinite. After looking at the winding closer you could see numerous broken wires and a nice coating of a scummy dirty substance. Just seeing that makes me decide that I need to change the fuel filters. I havent changed them since I bought the machine 14 months ago. Prob way overdue. SO, Thanks Goose for youre great advice! You helped immensely! Frank
 
OP
OP
F

Frank Y

Member
Joined
Feb 15, 2009
Messages
7
OK, first thing I did was remove the wire back off the plug to make sure the wire wasnt broken and to make sure I had the right wire. Checked ok. So I reinstalled everything on the control panel and checked ground from the sender housing to the starter to be sure. Checked ok. Checked from the sender housing to the fuel tank. Checked ok. Checked ground from the sender terminal to the tank. Nothing (at half tank of fuel). Then took a jumper wire and clipped to the sender wire and to the starter. SURE ENOUGH the LED's went off to the lowest level and the bottom one was flashing for low fuel. Unhooked the wire and they went back on. COOL! I did this a couple times out of amusement and amazement (yeah im that simple). I never saw them work before so I was glad to see them working correctly. And I like when my machines are working as they were from new. Drained the tank low enough that the sender was removable and pulled the sender. Checked the senders resistance and it showed infinite. After looking at the winding closer you could see numerous broken wires and a nice coating of a scummy dirty substance. Just seeing that makes me decide that I need to change the fuel filters. I havent changed them since I bought the machine 14 months ago. Prob way overdue. SO, Thanks Goose for youre great advice! You helped immensely! Frank
Well the dealer finally was able to get me the sending unit for the 1840. Seems they dont like to order parts. I ended up waiting close to a month for the part to come in that was supposedly in stock. Installed the sender and all works well. Thanks to everyone who helped me out on this! Frank
 

Tazza

Moderator
Staff member
Joined
Dec 7, 2004
Messages
16,835
Well the dealer finally was able to get me the sending unit for the 1840. Seems they dont like to order parts. I ended up waiting close to a month for the part to come in that was supposedly in stock. Installed the sender and all works well. Thanks to everyone who helped me out on this! Frank
Glad its fixed.
Thats pretty bad for them taking so long to get parts!
 

Skeet

Member
Joined
Aug 3, 2010
Messages
14
OK, first thing I did was remove the wire back off the plug to make sure the wire wasnt broken and to make sure I had the right wire. Checked ok. So I reinstalled everything on the control panel and checked ground from the sender housing to the starter to be sure. Checked ok. Checked from the sender housing to the fuel tank. Checked ok. Checked ground from the sender terminal to the tank. Nothing (at half tank of fuel). Then took a jumper wire and clipped to the sender wire and to the starter. SURE ENOUGH the LED's went off to the lowest level and the bottom one was flashing for low fuel. Unhooked the wire and they went back on. COOL! I did this a couple times out of amusement and amazement (yeah im that simple). I never saw them work before so I was glad to see them working correctly. And I like when my machines are working as they were from new. Drained the tank low enough that the sender was removable and pulled the sender. Checked the senders resistance and it showed infinite. After looking at the winding closer you could see numerous broken wires and a nice coating of a scummy dirty substance. Just seeing that makes me decide that I need to change the fuel filters. I havent changed them since I bought the machine 14 months ago. Prob way overdue. SO, Thanks Goose for youre great advice! You helped immensely! Frank
I've got the same problem. Is this sender unit about 12 inches up the left rear post with a single green wire? So if I take that off and ground it, I should get a proper reading(assuming everything else is working properly)? If so, I replace the entrie unit? how much did a new one cost? Thanks
 

Latest posts

Top