873 won't shut-off

[antiquejohndeere]

I have a 1999 873 F-series. When you turn the key off it won't shut down. The only way to kill it is to turn the key all the way to the left which bogs the motor down to kill it since this is for relieving the aux. pressure lines when the engine is off. We've been getting off and opening the engine door and using the "manual kill" lever on the injector pump. I've cleaned the terminals and plug for the fuel shut-off solenoid and added dielectric grease and it seems to work the first couple of times you shut it down. Then it stops working. Any ideas? Thanks for any help.

 

[Tazza]

Have you tried cleaning the actual solenoid? its possible you have rust or something sticking the solenoid in place causing it to not release properly.
A new solenoid may be in order too.