P284F

Shift Fork C Unrequested Movement

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–222 (est.)

Symptoms

Gear shifting problems
Switching delays
Transmissions turn off spontaneously
Knock or noise from transmission
Check Engine light comes on

Causes

Shift fork wear C
Problems with the synchronizer
Hydraulic faults (leaks, low fluid level)
Shift solenoids malfunction
Problems with the wiring harness or connectors

How to Fix

Check the level and condition of the transmission fluid
Diagnose the operation of switching solenoids
Check the mechanical condition of the fork and synchronizers
Inspect the wiring harness and connectors for damage.
If necessary, replace the shift fork or other damaged components.

Related codes

P284D P284E P2850