How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask John Oliver Your Own Question
John Oliver
John Oliver,
Category: Agriculture and Farm Equipment
Satisfied Customers: 201
Experience:  manager at White Eagle Ag and Truck Services
Type Your Agriculture and Farm Equipment Question Here...
John Oliver is online now
A new question is answered every 9 seconds

John Deere model 4100 has started intermittent squealing and

Customer Question

John Deere model 4100 has started intermittent squealing and jerking when in gear. Was bushhogging and tractor squealed, stopped and turned off. Driving back to garage, it would intermittently squeal and jerk...I put into lower gear and got back to garage.
Submitted: 1 year ago.
Category: Agriculture and Farm Equipment
Expert:  John Oliver replied 1 year ago.

good afternoon Ken my name is ***** ***** like you have a big issue on your hands but im sure we can work threw this. first off what trans do you have in this tractor?

Expert:  John Oliver replied 1 year ago.

does the squeal sound like its coming from the engine or the drive train?

Customer: replied 1 year ago.
On the cover of the operator's manual the tractor is a John Deere Compact Utility Tractor with Gear Transmission. It's hard to say where the squeal is coming from, but when it jerks to a halt, there's a puff of whitish smoke coming out of the front.
Expert:  John Oliver replied 1 year ago.

so is the engine not running correctly?

Customer: replied 1 year ago.
Engine seems to be running fine except for when the squealing happens and the tractor bucks. When I put on the brakes, the engine continues to run and I can go a little further until it happens again.
Expert:  John Oliver replied 1 year ago.

the first thing you need to do is determine if the issue is in the drive train or the engine. without being there to hear or see there is no way for me to tell by what you are describing. the white smoke could be from excessive load from the trans or it could be a head gasket. the squealing could be an engine belt, alternator or engine failure. or it could be a bearing going bad in the transmission.

i would check your fluids and see if your engine or hydraulic oil is low to start with and maybe we can narrow it down from there

Customer: replied 1 year ago.
I'm not a mechanic so I have no idea what to look for engine- or transmission-wise. Engine oil is good and I check the transmission fluid according to the operator's manual and it was where it should be. The squeal isn't like from a belt...more like metal fingernails on a metal chalkboard.
Customer: replied 1 year ago.
The tractor only has a little over 500 hours on it.
Expert:  John Oliver replied 1 year ago.

then i would GUESS that your looking at an issue in the drive train and should have a knowledgeable technician put his eyes and ears on it before more damage happens. there isnt just one clear cut repair on this im afraid and from where i sit if i gave you any suggestions i would be wasting your time. i worked with John Deere for 10 years and saw many different issues with these tractors and the PTO drive train. I'm sorry that i couldnt give you a solid answer. I hope you take my advise and get man out there to do a good diagnosis on this machine

thank you for using JA

Customer: replied 1 year ago.
Expert:  John Oliver replied 1 year ago.

again super sorry

please when you have a second rate the service so as i can get credit and stay around another day. good luck and if you want a second opinion on the diagnosis i would be more than happy to help