LS Won't turn over

Roadworthy · Dec 27, 2019

It could just be cold. Try running your glow plugs for a few seconds (if it has them) then try the starter. It could also be a heater relay of you have an intake heater instead.

alexsbuddy · Dec 27, 2019

Could be a faulty fuel solenoid or a bad switch. Just a thought.

aczlan · Dec 28, 2019

Mely75 said:
Thats right. As soon as you let off the starter it dies instantly

That sounds like a bad key switch to me, after it shuts off, is there a quiet humming or buzzing sound for 5 to 10 seconds after the tractor shuts off?
If so, that is likely the fuel shut off solenoid on the injection pump running to shut off fuel and make the tractor stop running.
If you are getting that sound, I would replace the ignition switch as my first troubleshooting step.

Aaron Z

tomplum · Dec 28, 2019

Mely75 said:
I found a toggle relay that had broke on the hydrostatic arm that wasnt engaging and keeping it from turning over. Without the relay depressed it was sensing that the tractor was in gear and preventing it from turning over. Now it will attempt to turn over but wont continue to run, seems there is some issue with the fuel pump or a relay to the pump. Since it cranks now but wont stay running. II have checked the fuel filter, purge the fuel supply lines and I am getting fuel both on the supply and return side..........Fixed one issue to find another

So what / where is this toggle relay and what repair was done? I could look on my rig for reference for you. Is it possible that the current condition is related to this?

sodamo · Dec 29, 2019

Sounds like my Kioti when ignition switch went bad. I could wiggle it and usually find the spot to stay running. Sometimes had to do same to turnoff. New switch was perfect fix.

chas0218 · Jan 17, 2020

Mely75 said:
Thats right. As soon as you let off the starter it dies instantly

So it starts but won't stay running when you disengage the key. It sounds like the key switch has something going on or the microswitch you found broke isn't working correctly. Did you bypass the microswitch? If you can give us more detail as to what you did with the switch or how you fixed it. Is there a pressure switch in the seat?