P0733 2017 GMC Sierra Code - Transmission 3rd Gear Ratio Incorrect
Quick Answer
The P0733 diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates that the transmission's 3rd gear ratio is incorrect. Common causes include Faulty transmission solenoids, Low transmission fluid levels, Malfunctioning transmission control module. 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 2017 GMC Sierra indicates Transmission 3rd Gear Ratio Incorrect.
- Common causes
- Common causes include Faulty transmission solenoids, Low transmission fluid levels, Malfunctioning transmission control module.
- 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 2017 GMC Sierra Description
The P0733 diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates that the transmission's 3rd gear ratio is incorrect. This means that the transmission is not shifting properly into 3rd gear, which can lead to a variety of performance issues. 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. This discrepancy can result in poor fuel efficiency, rough shifting, decreased acceleration, and potential damage to the transmission components if left unaddressed.
Common Causes of P0733 2017 GMC Sierra
- Faulty transmission solenoids
- Low transmission fluid levels
- Malfunctioning transmission control module
- Internal mechanical issues within the transmission
- Electrical problems in the transmission system
Symptoms of P0733 2017 GMC Sierra
- Rough or delayed shifting between gears
- Slipping or hesitation when accelerating
- Decreased fuel efficiency
- Illumination of the check engine light
- Unusual noises coming from the transmission
How to Fix P0733 2017 GMC Sierra
- Diagnose the specific cause of the incorrect 3rd gear ratio by performing a thorough transmission inspection and conducting a scan tool analysis to pinpoint the issue.
- Check and replenish transmission fluid levels if low, and inspect for any leaks that may be causing fluid loss.
- Test and potentially replace faulty transmission solenoids or the transmission control module if necessary.
- Conduct a thorough inspection of the transmission components to identify any internal mechanical problems, such as worn gears or clutch plates, and repair or replace as needed.
- Clear the DTC from the TCM memory and test drive the vehicle to ensure that the issue has been resolved and the transmission is shifting correctly into 3rd gear.
Cost to Fix P0733 2017 GMC Sierra
The cost of repairing a P0733 code on a 2017 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 can range from $200 to $800, while labor costs can range from $300 to $1000. Overall, the total repair cost can be anywhere from $500 to $1800. It is important to note that these are rough estimates, and actual costs may vary based on factors such as location, labor rates, and the need for any additional repairs or parts replacements. It is recommended to consult with a qualified mechanic or repair shop for a more accurate cost estimate based on the specific circumstances of your vehicle.
Tech Notes for P0733 2017 GMC Sierra
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