Agriculture and Farm Equipment

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My 790 suddenly quit while mowing. I changed the fuel

Customer Question
My 790 suddenly quit...

My 790 suddenly quit while mowing. I changed the fuel filter, debris bowl and fuel pump. Still no start. Removed the fuel solenoid .and it started right away.. the fuel solenoid operates when power applied. Re inserted the fuel solenoid and no start. Starts and runs fine without it. What is the next thing to check

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Model 3TNV82A-LJNT

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Serial ch3013d202190X

Submitted: 3 months ago.Category: Agriculture and Farm Equipment
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Customer reply replied 3 months ago
John Deere 790
Customer reply replied 3 months ago
If the delay module controls all the safety shut offs' is it not working if i stand and the PTO is on and it does not shut the engine down?
Answered in 10 hours by:
4/1/2018
Mechanic: Curtis B., Technician replied 3 months ago
Curtis B.
Curtis B., Technician
Category: Agriculture and Farm Equipment
Satisfied Customers: 4,193
Experience: Technican turned service manager on multiple lines of equipment and rental equipment.
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Hi, let's see if we can work together to get to the root of your problem! will try my best to help!

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Mechanic: Curtis B., Technician replied 3 months ago

Fuel solenoid has three wires. one has to have voltage as soon as the key is turned on, the other, which is the pull in for the solenoid, is only powered when the starter is engaged. If you don't have voltage at all times, the relay for the fuel solenoid is likely the problem. If it has voltage to it, the solenoid is bad.

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Customer reply replied 3 months ago
if I applied power to the solenoid and it retracted it works then, right?
Then it must be the relay?
Mechanic: Curtis B., Technician replied 3 months ago

The solenoid has to retract on one wire, and hold the position on the other. Both have to be good.

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Customer reply replied 3 months ago
Is it relevant that the PTO seat safety switch is also not working?
Mechanic: Curtis B., Technician replied 3 months ago

Pto could keep the starter from working, but it has no effect on the voltage to the solenoid.

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Customer reply replied 3 months ago
Where is the relay located on my tractor?
Mechanic: Curtis B., Technician replied 3 months ago
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Customer reply replied 3 months ago
Thank you
Would you be able to send the corresponding diagram number idenification list?
Mechanic: Curtis B., Technician replied 3 months ago
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