P079A Code - Transmission Friction Element 'A' Slip Detected
Quick Answer
The P079A diagnostic trouble code (DTC) indicates that the Transmission Friction Element 'A' is slipping, which means that the transmission is not transferring power efficiently from the engine to the wheels. Common causes include Worn-out clutch plates in the transmission, Low transmission fluid levels or contaminated 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
- P079A indicates Transmission Friction Element 'A' Slip Detected.
- Common causes
- Common causes include Worn-out clutch plates in the transmission, Low transmission fluid levels or contaminated 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P079A Description
The P079A diagnostic trouble code (DTC) indicates that the Transmission Friction Element 'A' is slipping, which means that the transmission is not transferring power efficiently from the engine to the wheels. This issue can lead to poor vehicle performance, reduced fuel efficiency, and potential long-term damage to the transmission system if not addressed promptly.
Common Causes of P079A
- Worn-out clutch plates in the transmission
- Low transmission fluid levels or contaminated fluid
- Faulty transmission solenoids
- Electrical issues with the TCM or wiring harness
- Mechanical damage to the transmission components
Symptoms of P079A
- Erratic shifting or gear changes
- Delayed engagement when shifting gears
- Harsh shifting or jerking motions
- Decreased fuel efficiency
- Transmission warning light illuminated on the dashboard
How to Fix P079A
- Begin by checking the transmission fluid level and quality. If low or contaminated, perform a transmission fluid flush and refill with the manufacturer-recommended fluid.
- Inspect the clutch plates in the transmission for wear and tear. Replace any damaged or worn-out components.
- Test the transmission solenoids and replace any faulty ones that are causing the slip issue.
- Check the TCM and wiring harness for any electrical faults or connectivity issues. Repair or replace as necessary.
- Test drive the vehicle after repairs to ensure that the slip issue has been resolved and that the transmission is functioning properly.
Cost to Fix P079A
The cost of repairing a transmission friction element 'A' slip issue can vary depending on the extent of the damage and the specific components that need to be replaced. On average, the repair costs for this issue can range from $500 to $1500, including parts and labor. However, it is important to note that the actual cost may be higher or lower based on the location, vehicle make and model, and the severity of the problem. Additionally, diagnostic time and labor rates at auto repair shops can impact the final repair bill, with hourly rates typically ranging from $80 to $150. It is recommended to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on the specific circumstances.
Need more information about the P079A code?
Need more information on how to fix the P079A code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P079A code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P079A Code
1. What are the common symptoms of OBDII code P079A?
- Common symptoms include harsh shifting, transmission slipping, reduced fuel efficiency, and the transmission may go into limp mode.
2. What can cause OBDII code P079A to trigger?
- The code P079A is triggered when the Transmission Control Module (TCM) detects excessive slipping of the friction element 'A' in the transmission.
3. How serious is OBDII code P079A?
- OBDII code P079A should be addressed promptly to prevent further damage to the transmission system and ensure safe driving conditions.
4. Can driving with OBDII code P079A cause further damage?
- Continuing to drive with code P079A can lead to increased wear on transmission components and potentially result in a complete transmission failure.
5. How is OBDII code P079A diagnosed?
- Diagnosis involves using a professional diagnostic scan tool to read the code, along with conducting a thorough inspection of the transmission system.
6. What are some common repair tips for OBDII code P079A?
- Repairing code P079A may involve checking and replacing the friction element 'A', inspecting the transmission fluid level and condition, and ensuring proper TCM operation.
7. Can I reset OBDII code P079A without fixing the underlying issue?
- While you can clear the code temporarily, it is crucial to address the root cause of code P079A to prevent ongoing transmission problems.
8. How much does it typically cost to repair OBDII code P079A?
- The cost of repairing code P079A can vary depending on the extent of the issue, but it may involve replacing transmission components or addressing related issues.
9. Are there any preventive measures to avoid OBDII code P079A?
- Regular maintenance, such as checking and changing transmission fluid at recommended intervals, can help prevent issues that may trigger code P079A.
10. Can a DIY enthusiast fix OBDII code P079A?
- While some basic maintenance tasks can be done by DIY enthusiasts, diagnosing and repairing code P079A often requires professional expertise and specialized tools.
Discuss the causes and fixes for P079A OBDII Code
Code P079A comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.