Engine-CodesKIA – P0733 KIA

P0733 KIA Code - Third Gear Incorrect Ratio

Quick Answer

The P0733 diagnostic trouble code (DTC) for KIA vehicles indicates that there is an incorrect ratio in the vehicle's third gear. Common causes include Low transmission fluid levels or dirty/contaminated fluid, Faulty transmission solenoid, Worn or damaged clutch components. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0733 KIA indicates Third Gear Incorrect Ratio.
Common causes
Common causes include Low transmission fluid levels or dirty/contaminated fluid, Faulty transmission solenoid, Worn or damaged clutch components.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Aug 18, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0733 KIA Description

The P0733 diagnostic trouble code (DTC) for KIA vehicles indicates that there is an incorrect ratio in the vehicle's third gear. This typically means that the transmission is not shifting properly into third gear, resulting in a discrepancy between the expected gear ratio and the actual gear ratio. This issue can lead to poor vehicle performance, decreased fuel efficiency, and potential long-term damage to the transmission system if left unresolved.

OBDII Code P0733 KIA - Third Gear Incorrect Ratio
P0733 KIA Code - Third Gear Incorrect Ratio

Common Causes of P0733 KIA

  1. Low transmission fluid levels or dirty/contaminated fluid
  2. Faulty transmission solenoid
  3. Worn or damaged clutch components
  4. Malfunctioning transmission control module (TCM)
  5. Mechanical issues within the transmission

Symptoms of P0733 KIA

  1. Delayed or harsh shifting into third gear
  2. Slipping or jerking while driving
  3. Engine revving but vehicle not accelerating as expected
  4. Illumination of the Check Engine Light (CEL)
  5. Decreased fuel efficiency

How to Fix P0733 KIA

  1. Check and top off transmission fluid levels
  2. Perform a transmission flush or replace the fluid if dirty or contaminated
  3. Inspect and replace any faulty transmission solenoids
  4. Repair or replace worn clutch components
  5. Diagnose and address any issues with the TCM or internal transmission components

Cost to Fix P0733 KIA

The cost of repairing a P0733 code in a KIA vehicle can vary depending on the specific issue causing the incorrect gear ratio. On average, the repair costs for this type of transmission issue can range from $200 to $1500, including parts and labor. Keep in mind that the actual cost can be higher or lower based on the extent of the problem, the need for parts replacement, and the hourly labor rates at the auto repair shop. It is recommended to obtain quotes from local auto repair shops to determine the precise cost for addressing this specific concern.

Tech Notes for P0733 KIA

Start by inspecting the transmission fluid level and condition, and change fluid if necessary.

When is the Code Detected?

P0733 is detected when A/T cannot be shifted to the 3rd gear position even if electrical circuit is good.

Need more information about the P0733 KIA code?

Need more information on how to fix the P0733 KIA code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0733 KIA code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0733 KIA Code

1. What does the OBDII code P0733 mean on a Kia?

P0733 indicates that the transmission control module (TCM) has detected an incorrect gear ratio in third gear, suggesting a potential issue with the transmission or related components.

2. What are the common symptoms of the P0733 code in a Kia?

Symptoms may include harsh shifting, slipping in third gear, reduced fuel efficiency, the check engine light turning on, and in some cases, the vehicle entering limp mode.

3. What causes the P0733 code to appear on a Kia?

Common causes include low or dirty transmission fluid, a faulty shift solenoid, worn-out clutch packs, damaged transmission bands, or issues with the transmission control module.

4. Can low transmission fluid cause the P0733 code in a Kia?

Yes, low or dirty transmission fluid can lead to improper hydraulic pressure, causing the incorrect gear ratio and triggering the P0733 code.

5. How is the P0733 code diagnosed on a Kia?

A mechanic will typically use a scan tool to confirm the code, inspect the transmission fluid level and condition, check for transmission slippage, and test the shift solenoids and related components.

6. Can I drive my Kia with the P0733 code?

Driving with the P0733 code is not recommended, as it can lead to further damage to the transmission and potentially leave you stranded if the transmission fails completely.

7. How do you fix the P0733 code on a Kia?

Repairs may include replacing or refilling transmission fluid, repairing or replacing a faulty shift solenoid, fixing damaged clutches or bands, or reprogramming the transmission control module.

8. Does the P0733 code always mean the transmission is failing?

No, the P0733 code doesn’t always indicate transmission failure. It may be caused by simpler issues like low fluid or a malfunctioning solenoid, which are easier and less expensive to fix.

9. How much does it cost to fix the P0733 code on a Kia?

Repair costs can vary widely depending on the cause. Simple fixes like fluid replacement may cost $100–$200, while more complex repairs such as solenoid replacement or transmission rebuilds can exceed $1,000.

10. Can a software update fix the P0733 code on a Kia?

In some cases, a software update to the transmission control module can resolve calibration issues that may be causing the P0733 code, but this must be determined through proper diagnostics.

Discuss the causes and fixes for P0733 KIA OBDII Code

Code P0733 KIA comments

No comments found for this page.