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Deere 650J Help!!!

Lynn Statham

Lynn Statham

New Member
Joined
Dec 14, 2019
Messages
3
Location
Texas
Jumped on my machine yesterday. Cranked it up and let it idle while I greased everything. Filled her up with fuel and after moving about 200 feet, it idled down and stopped. Won’t idle up, blade won’t move, and tracks won’t move. Runs and cranks fine. These are the codes:
F3X1
F3U0
F3U5
F3U4
F382
F3T0

Ideas on where to start???
Thanks in advance.
 
mg2361

mg2361

Senior Member
Joined
Jul 5, 2016
Messages
5,146
Location
Pennsylvania
Occupation
Equipment Mechanic
Welcome to HEF Lynn;)! Serial number please?

Looks like a throttle issue keeping you from moving. However I am also concerned about the low charge pressure code as well. Behind your left elbow is a black plastic cover the covers the TCU.
Remove that and check the wiring really well. Mice and other critters like to nest in there and wreak havoc with the wiring.

Also lets clear the codes and see what comes back. On the TCU press menu until "code" appears. Press select. Press next to scroll through all the codes until the word "end" appears. Press and hold select for 5 seconds until F300 appears. Cycle key. Try to move the machine and let see what codes return.

F3X1 - Charge pressure low
F3U0 - Throttle Sensor open/short
F3U5 - Throttle short to power
F3U4 - Throttle Sensor input greater than max
F382 - Right Speed Sensor open
F3T0 - Speed Button open/short
 
Lynn Statham

Lynn Statham

New Member
Joined
Dec 14, 2019
Messages
3
Location
Texas
mg2361 said:
Welcome to HEF Lynn;)! Serial number please?

Looks like a throttle issue keeping you from moving. However I am also concerned about the low charge pressure code as well. Behind your left elbow is a black plastic cover the covers the TCU.
Remove that and check the wiring really well. Mice and other critters like to nest in there and wreak havoc with the wiring.

Also lets clear the codes and see what comes back. On the TCU press menu until "code" appears. Press select. Press next to scroll through all the codes until the word "end" appears. Press and hold select for 5 seconds until F300 appears. Cycle key. Try to move the machine and let see what codes return.

F3X1 - Charge pressure low
F3U0 - Throttle Sensor open/short
F3U5 - Throttle short to power
F3U4 - Throttle Sensor input greater than max
F382 - Right Speed Sensor open
F3T0 - Speed Button open/short
Click to expand...

TO650JX146881

After clearing codes, only one came back was charge pressure. Charge pressure on the dash is zero psi. I’m
Guessing I need to start with the charge pump. What you think?
 
rmllarue91

rmllarue91

Senior Member
Joined
Apr 16, 2014
Messages
701
Location
northeast pa
Occupation
field technician
Lynn Statham said:
TO650JX146881

After clearing codes, only one came back was charge pressure. Charge pressure on the dash is zero psi. I’m
Guessing I need to start with the charge pump. What you think?
Click to expand...
Check oil and filters before swapping a new pump on
 
mg2361

mg2361

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Messages
5,146
Location
Pennsylvania
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Equipment Mechanic
Do you have gauges? After changing your filter I would check the charge pressure with a gauge first to rule out a bad sensor. Tee into the line goes to the transmission filter and read the pressure (I don't think there is a diagnostic port connector based on your serial number).

Test Connection.png
 
T

TNB

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Jul 23, 2016
Messages
38
Location
Over there
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P-on
mg2361 said:
Do you have gauges? After changing your filter I would check the charge pressure with a gauge first to rule out a bad sensor. Tee into the line goes to the transmission filter and read the pressure (I don't think there is a diagnostic port connector based on your serial number).

View attachment 207201
Click to expand...
The only commonality between zero charge pressure and absolutely no blade function would be what’s turning the pumps,, I.e. the drive coupling between the engine and hydrostat. I would say you’re in for a pump r&r and coupler replacement.
 
T

TNB

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Messages
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Location
Over there
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P-on
TNB said:
The only commonality between zero charge pressure and absolutely no blade function would be what’s turning the pumps,, I.e. the drive coupling between the engine and hydrostat. I would say you’re in for a pump r&r and coupler replacement.
Click to expand...
I should add the only “probable” commonality...
 
mg2361

mg2361

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Location
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TNB said:
The only commonality between zero charge pressure and absolutely no blade function would be what’s turning the pumps,, I.e. the drive coupling between the engine and hydrostat.
Click to expand...

I missed that part when I read the original post (tunnel vision I'm guessing). TNB is correct. If you have nothing (blade, drive, or charge pressure then a drive coupling probably went out.
 
T

TNB

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Messages
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Over there
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P-on
Lynn Statham said:
Agreed on coupler as well. What kind of shop time can I expect this to take?
Click to expand...
Open station? Does it have a winch? If not A good tech familiar with the tractor should be able to do it in a day in the field. Winches and cabs complicate things.
 
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