Gear 3 Incorrect Ratio

What it means

While third gear was commanded, the transmission computer found that the ratio between input and output speed does not match third gear. Drivers usually notice it on the 2-3 shift or when accelerating at medium speeds, and the cause is a slipping clutch that applies this gear or low pressure.

Related codes: P0730P0732P0734P0782P0760P0868

Symptoms4

• Engine speed flare on the 2-3 shift.
• Slipping when accelerating at medium speeds.
• Transmission staying in second gear or jumping to another gear.
• Check engine light on, possibly with the transmission in limp mode.

Possible causes5

• Low or degraded transmission fluid.
• A faulty solenoid that controls the shift into third gear.
• A valve body fault or a leak in the third gear circuit.
• Worn clutch that applies third gear.
• Damaged internal seals or piston for this clutch.

How to diagnose5

1. Check the fluid level and condition.
2. Watch input and output speed during the 2-3 shift and while accelerating in third gear.
3. Read solenoid and shift codes such as P0782, and test the solenoids with a scan tool.
4. Note whether ratio codes for other gears are stored, because one clutch can be shared by more than one gear.
5. Have a hydraulic pressure test done in third gear.

How to fix5

1. Correct the fluid level, or change the fluid and filter.
2. Replace the faulty solenoid.
3. Repair or replace the valve body.
4. Repair the clutch that applies third gear, along with its seals.
5. Clear the codes and confirm a smooth shift into third with no slipping on a road test.

Repair cost

In Saudi riyals; the highlighted part is the expected range for this fault.

The cost is low when fluid or a solenoid is the cause, and much higher when the transmission must be opened to repair the internal clutch.

Prices are rough estimates for common cars at independent workshops and vary with the car and the source of the part.
Prices last updated: September 2026

Frequently asked questions