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Cat 226 won’t run

charles walton · 2016-06-23 19:26

I have a 2000 model 226 that has served me well until recently,it will fire up while you crank on it but when you release the key to the run position it dies,I have replaced the switch and the fuel cut off solenoid with no change.Has anybody else done this or know what to check next?Thanks

Replies14
  1. #1Mark2502016-06-23 20:32

    serial number

  2. #2mountainlake2016-06-24 05:58

    The fuel shutoff solenoid should have 2 hot wires coming to it ( not sure about cats) one is for start up which should be hot when the key is turned to the start position and the other is run which should stay hot when the key is in the run position, make sure it's staying hot when the key is turned back from start to run. Steve

  3. #3charles walton2016-06-24 07:45

    sn 5fz1452

  4. #4Mark2502016-06-24 09:59

    hi, assuming it is not fuel related (should have 6 to 10 psi at transfer pump) check fuse for fuel shut off at fuse panel as indicated below, if you have power both sides of fuse check for power at the wire number A309-GY at the shut off solenoid. This wire should be energised all the time with key on. The other wire is the pull in wire and is only energised while cranking if this is ok remove the shut down solenoid and blank off the opening. the fuel rack is now in the fuel on position be careful doing this as you may not be able to shut down the engine without interrupting the fuel supply there is also a charge pressure switch on some models which is in the shut down circuit so if fitted check for power at this point also Mark

  5. #5charles walton2016-06-24 11:30

    Thanks Mark250

  6. #6charles walton2016-06-27 22:37

    I keep blowing fuses for the fuel shutoff,could it be a bad relay?We didn't find any bare wire and the solenoid is new.

  7. #7Mark2502016-06-27 23:36

    disconnect the stop solenoid and try replacing your fuse if it still blows you need to look at other areas. the stop light circuit is also part of that fuse group as below

  8. #8charles walton2016-07-16 16:41

    Finally got around tochanging the fuel solenoid out and she cranked up and ran.

  9. #9Mark2502016-07-16 17:02

    thanks for the up date MARK

  10. #10mountainlake2016-07-16 18:12

    Charles On you your first post you replaced the solenoid, did you replace it again? Good to have it running again. Steve

  11. #11loveyourcountryUSA842023-11-19 10:19

    I'm having the exact same problem on the same machine. I've replaced the solenoid and it's blowing fuses as soon as the key is turned on. The fuse holds if solenoid is disconnected.

  12. #12Simon C2023-11-22 23:16

    So if you unplug the solenoid the fuse no longer blows. That seems to indicate that the harness is not grounding out. Sounds like the solenoid is grounding out. I installed a solenoid on a friends machine and it died in 5 hrs. Sometimes new parts fail quickly. Try flexing the harness with solenoid disconnected to see if you can blow the fuse, in case if it blows with the first vibrations. Just some inexpensive things to try before buying number 2 solenoid. Simon C

  13. #13Nige2023-11-23 03:59

    Is your machine a 5FZ-prefix the same as the person who started this thread.? It helps when looking at the electrical schematic to know you’re looking at the right one.

  14. #14Vetech632023-11-23 08:00

    .....and don't buy those solenoids on Amazon and such.......they are S%&t