Transmission Troubleshooting

Symptom Problem Solution

PST transmission vent between engine and transmission yoke leaks oil

Clogged transmission filter screen

Clean screen

AutoPowr transmission external vent leaks oil

Clogged transmission filter screen

Clean screen

Transmission warning displays

Diagnostic trouble code has been stored

See PTI or PTP in the Diagnostic Trouble Codes section

PST transmission skips gears

No problem

See Shifting the Transmission in Operating the Tractor section

Transmission shifts slowly and tractor steers hard

Cold oil

See Transmission/Hydraulic System Warm-Up in Operating the Tractor section

Transmission slips, shifts rough or abruptly (jerky) after oil change

Recalibrate transmission (PST only)

See Changing Transmission/Hydraulic Oil in the Lubrication section

Have dealer recalibrate

See your John Deere dealer

Transmission starts out too fast/slow

No problem

Start-up gear can be changed. See Shifting the Transmission in Operating the Tractor section

See your John Deere dealer

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