L3400 Engine Dying

[leonz]

I wonder if you have a herd of algae running around in the fuel tank and everytime you try to move it sloshes it enough to close the inlet screen?

 

[grsthegreat]

I wonder if you have a herd of algae running around in the fuel tank and everytime you try to move it sloshes it enough to close the inlet screen?

hes not moving it, hes simply depressing the clutch. and it revs back up if he depresses the clutch

 

[leonz]

hes not moving it, hes simply depressing the clutch. and it revs back up if he depresses the clutch

UGH!, maybe tis a sticky brake then after all????

 

[PoorMansCat]

ya know, on my 4400 i can HEAR the fuel solenoid "click" when I turn the key on, then I hear another "click" when I turn the key off...... IF his tractor is the same, stands to reason he should be able to listen for the audible "click" when he starts releasing the clutch pedal...... this would tell us if its an electrical safety switch issue, or if its something else!!..
OP, Did you try releasing the clutch with the trans. in neutral, if so, what was the result?

 

[Milton Burro]

ya know, on my 4400 i can HEAR the fuel solenoid "click" when I turn the key on, then I hear another "click" when I turn the key off...... IF his tractor is the same, stands to reason he should be able to listen for the audible "click" when he starts releasing the clutch pedal...... this would tell us if its an electrical safety switch issue, or if its something else!!..
OP, Did you try releasing the clutch with the trans. in neutral, if so, what was the result?

I guess I wasn't clear enough on my first post. If pto is disengaged and trans in neutral, it doesn't die. I had to move my son across country the last few days so I haven't had a chance to look at it closer. Only when I have it in drive does it die.

 

[PoorMansCat]

I guess I wasn't clear enough on my first post. If pto is disengaged and trans in neutral, it doesn't die. I had to move my son across country the last few days so I haven't had a chance to look at it closer. Only when I have it in drive does it die.

hhmmm... really sounds like the seat switch wiring... maybe someone on here has a wiring schematic they can post up to help trace the wiring... theres probably a way to temporarily bypass it

 

[ritschner]

The fact that it will start eliminates the PTO switch and that it will run in neutral eliminates the trans switch. I second the seat switch. To check the seat switch you will need a continuity tester. Unplug the seat switch from the wiring harness (there is a tab on the bottom that is hard to see, you may have to release the zip tie). There are three wires on the switch (black blue orange) that terminate in male pins in the connector. With the seat only all the way down there should be continuity between the black and orange wire only. With the seat only up there should be continuity between the black and blue wire only. Anything else and the switch is bad. If you need to drive it in the meantime, you can make a jumper with a a two inch piece of wire and two male spade connectors. Unplug the connector from the clutch switch and bridge the connector with the jumper. JUST REMEMBER, IT WILL NOW START IN GEAR WITH THE CLUTCH OUT!

 

[Milton Burro]

Finally got around to taking a look at it. Seems the seat switch was the culprit. With the seat down, the switch was right on the edge of make/break position. I removed it to see if I could adjust the lever but it is on a hex shaft and pinned to fit in one position only. Not only that, a different position on the shaft would move it too far out of range. A pair of channel locks to bend the metal tab down a little that activates the switch was all that was required. Talk about taking the long way around,,,

Thanks for all the feedback.