/ Fuel shutoff solenoid wont hold #1  

jd3038e2013

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May 31, 2024
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Tractor
JD 3038e 2013
JD 3038e fuel shutoff solenoid pulls but immediately pops back out. The hold is not working. I replaced the solenoid, checked all safety switches, ignition switch, pto switch, voltage to the solenoid, all fuses and replaced all relays. The thermistor is built into the instrument panel so it can only be swapped by getting a new instrument panel. My question is would a bad thermistor allow the solenoid to pull but not allow it to hold?
 

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   / Fuel shutoff solenoid wont hold #2  
Welcome to TBN!

I would think not. If the thermister was bad, it shouldn't hold.
Did you try to bypass everything to see if the new solenoid would hold?
 
   / Fuel shutoff solenoid wont hold #3  
Do you have a wiring diagram? Troubleshoot the circuit starting at the source in an energized condition, got it, got it, don't got it, there is the problem.
Guess you could always replace all that safety stuff with a toggle switch to power the solenoid, just be sure to put an inline fuse in the circuit.
 
   / Fuel shutoff solenoid wont hold #4  
We had a problem with Uncle's JD790. After 2 burnt up Solenoids, changed relays etc., we ended up putting a momentary button it to energize solenoid to start it. Been working fine. Like 1Mech said, if you do that make sure you fuse it.
 
   / Fuel shutoff solenoid wont hold #5  
The ter mister is probably a two stage type with the original amperage drawing it in with the second amperage holding it in.

There is a very good chance you will find it in a uncle
JD 3038e fuel shutoff solenoid pulls but immediately pops back out. The hold is not working. I replaced the solenoid, checked all safety switches, ignition switch, pto switch, voltage to the solenoid, all fuses and replaced all relays. The thermistor is built into the instrument panel so it can only be swapped by getting a new instrument panel. My question is would a bad thermistor allow the solenoid to pull but not allow it to hold?
Chances are the thermistor will be included in a bundle of wires behind the dash. It should be easily replaceable once you find it.
It should be two stage. The first amperage pulls it in. The second amperage holds it open. About a ten dollar item.
 
 
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