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Engine-Codes – Generic – P0733

P0733 Code - Gear 3 Incorrect ratio

Quick Answer

The P0733 code indicates that the Powertrain Control Module (PCM) has detected an incorrect gear ratio in the transmission's third gear. Common causes include Low transmission fluid level or poor quality fluid, Faulty transmission solenoid, Worn or damaged transmission gears. 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 indicates Gear 3 Incorrect ratio.
Common causes
Common causes include Low transmission fluid level or poor quality fluid, Faulty transmission solenoid, Worn or damaged transmission gears.
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.
What is this?
Table of contents Created and updated by William Orellana on Aug 30, 2024
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Code P0733 Description

The P0733 code indicates that the Powertrain Control Module (PCM) has detected an incorrect gear ratio in the transmission's third gear. This means that the transmission is not shifting properly into third gear, which can result in inefficient power transfer and overall poor performance of the vehicle. This issue can lead to decreased fuel efficiency, rough shifting, and potential damage to the transmission if left unaddressed.

OBDII Code P0733 - Gear 3 Incorrect ratio
P0733 Code - Gear 3 Incorrect ratio

Common Causes of P0733

  1. Low transmission fluid level or poor quality fluid
  2. Faulty transmission solenoid
  3. Worn or damaged transmission gears
  4. Malfunctioning transmission control module
  5. Issues with the torque converter

Symptoms of P0733

  1. Slipping transmission during acceleration
  2. Delayed or harsh shifting into third gear
  3. Engine stalling or hesitation
  4. Decreased fuel efficiency
  5. Illumination of the Check Engine Light

How to Fix P0733

  1. Check and top off transmission fluid levels
  2. Inspect and replace transmission solenoid if faulty
  3. Perform a transmission flush or replace damaged transmission gears
  4. Test and potentially replace the transmission control module
  5. Address any torque converter issues

Cost to Fix P0733

The cost of repairing a P0733 code can vary depending on the specific cause of the issue. On average, the repair costs can range from $200 to $1000, including parts and labor. However, it's important to note that prices can fluctuate based on the location of the repair shop, the make and model of the vehicle, and the extent of the repairs needed. Diagnostic time and labor rates at auto repair shops typically range from $80 to $150 per hour, but rates may be higher at dealerships or in metropolitan areas. It is recommended to obtain quotes from local shops for a more accurate estimate.

What does this mean?

Tech Notes for P0733

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 code?

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Need Help with the Code?

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Code P0733 Information for Specific Makes

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 Code

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