P0734

Gear 4 Incorrect Ratio

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–278 (est.)

Symptoms

Erratic gear shifting
Delays when switching to 4th gear
Power dips
Transmission fluid overheating
Check Engine light comes on

Causes

Wear of friction discs 4th gear
Low transmission fluid level
ATF contamination or degradation
Shift solenoids malfunction
Problems with speed sensors

How to Fix

Check the level and condition of the transmission fluid
Scan TCM Trouble Codes
Check operation of shift solenoids
Diagnose the mechanical condition of the transmission
If necessary, replace worn components

Related codes

P0730 P0731 P0732 P0733