JD 790 Stopped Running

   / JD 790 Stopped Running
  • Thread Starter
#11  
I'm moving on to the fuel shut-off solenoid.
I found a test that was posted on-line that I'll try...

Don't start the tractor, but try turning the key to the ON position and then turn on the headlights and see if the fuse blows...

If the fuse doesn't blow
Check the solenoid
Fuel Solenoid Gound Test
1. Key off
2. separate connector at solenoid
Check continuity between harness side of connector and ground at battery negative post
Must be 12vdc...if so replace solenoid otherwise poor ground...clean and repeat
Fuel Shutoff Solenoid Holdin Test
1. Turn key on
2. push solenoid in and release...It MUST STAY IN
If it doesn't proceed...
Fuel Shutoff Solenoid Voltage Test
1. Turn Key on
2. Check for voltage at connector to solenoid...should be at least 9 volts
If not, reverify your ground and if that's okay...REPLACE SOLENOID
 
   / JD 790 Stopped Running
  • Thread Starter
#12  
I disconnected a fuel injector supply line after the solenoid valve.
When I turned over the engine I saw no fuel.

I found a 3 amp fuse blown... it should have been the first thing I looked at.

I bled the fuel lines and the engine is running great, thank to everyone who responded to my post.

I'm back to work!
 
   / JD 790 Stopped Running #13  
Glad you got it going again. Sometimes it is and sometimes its not the simplest thing but its usually the last thing you find. Just like finding lost car keys, they are always in the last place you look.
 
   / JD 790 Stopped Running #14  
Mine just did the same thing with the same symptoms. It cranks well, lots of fuel coming out of the hose at the engine, but no start.

It was running yesterday and about 3 seconds after I dropped it to idle and climbed off the tractor, it stopped. I haven't been able to get it to run since.

Any suggestions other than the ones above?
 
 
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