4635 DXT Started Running By Itself

[jcoberg]

Have a 4635 DXT Sunday morning got up and machine was running, it started by itself and the key was off when i got in it. To shut off, put park brake on and killed engine. Now with key off everything inside electrically is on with key in the off position. To kill electrical power we remove battery cable. The starter will not activate, but you can here the solenoid clicking when you turn key to start. There is a relay that is wire tied to solenoid and if you pull the relay all electrical in cab shuts off as if you shut the key off. Removed all wires from key switch and get the same condition, electrical powers is on. I assume that the starter is smoked most likely but can not figure out why the power is on in cab with key in the off position. Any ideas??

 

[Tazza]

Could it be as simple as a bad ignition switch?

 

[jcoberg]

Got it fixed and it is running now. It was the relay that was wire tied to solenoid. That solenoid, I was informed, is the glow plug module and when it goes bad will start the skidloader on its own. The starter was also smoked as it was probably engaged until it went bad.

 

[Tazza]

Got it fixed and it is running now. It was the relay that was wire tied to solenoid. That solenoid, I was informed, is the glow plug module and when it goes bad will start the skidloader on its own. The starter was also smoked as it was probably engaged until it went bad.

You are very lucky it didn't catch fire. All because of a bad relay....

 

[JD Evans]

Have a 4635 DXT Sunday morning got up and machine was running, it started by itself and the key was off when i got in it. To shut off, put park brake on and killed engine. Now with key off everything inside electrically is on with key in the off position. To kill electrical power we remove battery cable. The starter will not activate, but you can here the solenoid clicking when you turn key to start. There is a relay that is wire tied to solenoid and if you pull the relay all electrical in cab shuts off as if you shut the key off. Removed all wires from key switch and get the same condition, electrical powers is on. I assume that the starter is smoked most likely but can not figure out why the power is on in cab with key in the off position. Any ideas??

I had an issue with my RT165 this morning. I would turn the key to the run position to allow the glow plugs to warm up but it would instantly start. After taking the ignition out and unplugging it, I found there to be just enough moisture in the plug that it was activating the start pin inside the ignition. I hope this helps someone in the future.