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Curtis B.
Curtis B., Technician
Category: Agriculture and Farm Equipment
Satisfied Customers: 28332
Experience:  Technican turned service manager on multiple lines of equipment and rental equipment.
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I have a early model 4020 JD diesel. I just installed a

Customer Question

I have a early model 4020 JD diesel. I just installed a different fuel pump and new injectors on it yesterday . I got the tractor to start , it ran real good ,but the throttle is super touchy on it , it wants to speed up and slow down on its own . Is there something I can do to make it less sensitive and smooth out on the throttle response ?
Submitted: 1 year ago.
Category: Agriculture and Farm Equipment
Expert:  Curtis B. replied 1 year ago.

You say different, was it a rebuilt injection pump?

Expert:  Curtis B. replied 1 year ago.

The injection pump has governor in it.

Expert:  Curtis B. replied 1 year ago.

It is what makes it sensitive. Not adjustable.

Expert:  Curtis B. replied 1 year ago.

Sound s like governor is bad

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