P079B Code - Transmission Friction Element 'B' Slip Detected
Quick Answer
The P079B diagnostic trouble code (DTC) indicates that the Transmission Friction Element 'B' is slipping. Common causes include Worn-out or damaged transmission friction elements, Low or contaminated transmission fluid, Faulty transmission solenoids. 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
- P079B indicates Transmission Friction Element 'B' Slip Detected.
- Common causes
- Common causes include Worn-out or damaged transmission friction elements, Low or contaminated transmission fluid, Faulty transmission solenoids.
- 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 P079B Description
The P079B diagnostic trouble code (DTC) indicates that the Transmission Friction Element 'B' is slipping. This code is specifically related to automatic transmissions and refers to a situation where the transmission clutch or brake associated with element 'B' is not engaging or disengaging properly. This can lead to inefficient power transfer between the engine and the transmission, resulting in poor vehicle performance and potentially causing damage to the transmission components over time.
Common Causes of P079B
- Worn-out or damaged transmission friction elements
- Low or contaminated transmission fluid
- Faulty transmission solenoids
- Malfunctioning transmission control module
- Mechanical issues with the transmission components
Symptoms of P079B
- Erratic shifting or delayed gear engagement
- Reduced acceleration and poor performance
- Transmission slipping or jerking during gear changes
- Illumination of the check engine light
- Overheating of the transmission fluid
How to Fix P079B
- Perform a thorough diagnostic scan to confirm the P079B code and identify any other related issues.
- Inspect and replace the worn-out or damaged transmission friction element 'B'.
- Check and replenish the transmission fluid to the proper level and quality.
- Test and replace any faulty solenoids or repair the transmission control module if necessary.
- Clear the DTC from the vehicle's computer system and road test the vehicle to ensure proper operation.
Cost to Fix P079B
The typical repair costs for addressing a Transmission Friction Element 'B' Slip Detected code (P079B) can range from $300 to $800, depending on the extent of the damage and the specific components that need to be replaced. This estimate includes the cost of parts and labor. However, it is important to note that the actual cost can vary significantly based on factors such as the vehicle make and model, the location of the repair shop, and the hourly labor rates. It is advisable to consult with a qualified mechanic or auto repair shop to obtain a more accurate estimate for your specific situation.
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