John Deere 4720 tractor won't start

   / John Deere 4720 tractor won't start
  • Thread Starter
#11  
Yes...new air filter. I'll see if I can figure out thepumpguysc's recommendation. I did Google the 2.4L fuel system but didn't see any videos that explained it. My JD 4720 is a 2007 so it does have the 2.4L engine with the integrated fuel system.
 
   / John Deere 4720 tractor won't start
  • Thread Starter
#12  
Also, if anyone has specific information about the thermistor on the JD 4720 I would love to know where it is. As I mentioned earlier...I took apart the fuse box completely and the harness behind it and didn't see one.
 
   / John Deere 4720 tractor won't start #13  
I watched the video this morning.. now I cant find it.. It was a JD supplemental video on utube..
Strange??
 
   / John Deere 4720 tractor won't start #14  
Did you solve the problem. My tractor uses mechanical fuel pump pretty much out of ideas. Where would fuel solenoid located? Any input would be appreciated
 
   / John Deere 4720 tractor won't start
  • Thread Starter
#15  
Yes...it was bad fuel. I drained the tank and replaced it with fresh diesel and it started right away. Good luck.
 

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