P0733 2015 GMC Sierra Code - Transmission 3rd Gear Ratio Incorrect
Quick Answer
The P0733 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates that the transmission's 3rd gear ratio is incorrect. Common causes include Faulty transmission solenoid, Worn-out clutch components, Damaged gear in the transmission. 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 2015 GMC Sierra indicates Transmission 3rd Gear Ratio Incorrect.
- Common causes
- Common causes include Faulty transmission solenoid, Worn-out clutch components, Damaged gear in the transmission.
- 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.
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Code P0733 2015 GMC Sierra Description
The P0733 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates that the transmission's 3rd gear ratio is incorrect. This means that the transmission is not shifting properly into 3rd gear, leading to potential performance issues and drivability concerns. The transmission control module (TCM) monitors the gear ratios during operation, and when it detects that the actual gear ratio does not match the expected ratio for 3rd gear, it triggers the P0733 code.
Common Causes of P0733 2015 GMC Sierra
- Faulty transmission solenoid
- Worn-out clutch components
- Damaged gear in the transmission
- Low or contaminated transmission fluid
- Electrical issues with the TCM or wiring
Symptoms of P0733 2015 GMC Sierra
- Harsh shifting between gears
- Slipping or delayed engagement when shifting into 3rd gear
- Reduced fuel efficiency
- Check Engine Light illuminated on the dashboard
How to Fix P0733 2015 GMC Sierra
- Perform a thorough diagnostic scan to confirm the P0733 code and identify the specific cause of the incorrect gear ratio.
- Inspect the transmission solenoid, clutch components, and gears for any signs of wear or damage.
- Check the transmission fluid level and quality, topping off or replacing as needed.
- Test the TCM and wiring for any electrical faults or issues.
- Repair or replace the faulty components identified during the diagnostic process, such as the solenoid, clutch, or gear.
Cost to Fix P0733 2015 GMC Sierra
The typical repair costs for addressing a P0733 code in a 2015 GMC Sierra can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the cost of parts for this repair could range from $200 to $800, while labor costs could range from $300 to $800. Overall, the total repair cost could fall between $500 and $1600. It's important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and the shop's labor rates. It's advisable to consult with a trusted mechanic or dealership for a more accurate cost estimate based on your specific situation.
Tech Notes for P0733 2015 GMC Sierra
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