Engine-CodesInfiniti – P0733 Infiniti

P0733 Infiniti Code - 3rd. Gear Malfunction

Quick Answer

The P0733 code in an Infiniti indicates a malfunction in the vehicle's 3rd gear. Common causes include Faulty shift solenoids, Low transmission fluid levels, Worn-out transmission valve body. 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 Infiniti indicates 3rd. Gear Malfunction.
Common causes
Common causes include Faulty shift solenoids, Low transmission fluid levels, Worn-out transmission valve body.
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 Sep 12, 2024
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Code P0733 Infiniti Description

The P0733 code in an Infiniti indicates a malfunction in the vehicle's 3rd gear. This means that the transmission is not shifting properly into 3rd gear, which can lead to issues with acceleration and overall performance. When the transmission fails to shift into the correct gear, it can cause the engine to rev higher than normal, leading to decreased fuel efficiency and potential damage to the transmission over time.

OBDII Code P0733 Infiniti - 3rd. Gear Malfunction
P0733 Infiniti Code - 3rd. Gear Malfunction

Common Causes of P0733 Infiniti

  1. Faulty shift solenoids
  2. Low transmission fluid levels
  3. Worn-out transmission valve body
  4. Internal transmission damage
  5. Electrical issues with the transmission control module

Symptoms of P0733 Infiniti

  1. Delayed or harsh shifting between gears
  2. Engine revving higher than normal before shifting into 3rd gear
  3. Slipping or jerking motions when trying to accelerate
  4. Decreased fuel efficiency
  5. Illumination of the Check Engine Light

How to Fix P0733 Infiniti

  1. Perform a diagnostic scan to confirm the P0733 code and identify the specific cause of the 3rd gear malfunction.
  2. Inspect the transmission fluid level and condition. Top off or replace the fluid if necessary.
  3. Check the shift solenoids and transmission valve body for any signs of wear or damage. Replace as needed.
  4. Test the transmission control module for any electrical issues and repair or replace as necessary.
  5. Clear the code and test drive the vehicle to ensure proper shifting into 3rd gear.

Cost to Fix P0733 Infiniti

The typical repair costs for addressing a P0733 code in an Infiniti can vary depending on the specific cause of the issue. On average, the parts required for this repair can range from $200 to $800, while the labor costs can be anywhere from $300 to $800. Keep in mind that these estimates are general and may vary based on factors such as location, vehicle make and model, and the extent of the repair needed. It is recommended to consult with a trusted auto repair shop to get a more accurate cost estimate for your specific situation.

Tech Notes for P0733 Infiniti

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.

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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.

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