P179A Chevrolet Code - Auxiliary Transmission Fluid Pump Overspeed
Quick Answer
The P179A Chevrolet diagnostic trouble code (DTC) refers to the Auxiliary Transmission Fluid Pump Overspeed. Common causes include Faulty auxiliary transmission fluid pump, Wiring or electrical issues, Low transmission fluid level. 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
- P179A Chevrolet indicates Auxiliary Transmission Fluid Pump Overspeed.
- Common causes
- Common causes include Faulty auxiliary transmission fluid pump, Wiring or electrical issues, Low transmission fluid level.
- 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 P179A Chevrolet Description
The P179A Chevrolet diagnostic trouble code (DTC) refers to the Auxiliary Transmission Fluid Pump Overspeed. This code indicates that the auxiliary transmission fluid pump is operating at a speed higher than the specified limit. The auxiliary transmission fluid pump plays a crucial role in ensuring proper lubrication and cooling of the transmission components. When the pump operates at an excessive speed, it can lead to issues such as overheating, increased wear and tear on transmission components, and potential damage to the transmission system as a whole.
Common Causes of P179A Chevrolet
- Faulty auxiliary transmission fluid pump
- Wiring or electrical issues
- Low transmission fluid level
- Clogged transmission fluid filter
- Internal transmission mechanical issues
Symptoms of P179A Chevrolet
- Rough or erratic shifting
- Transmission overheating
- Transmission slipping
- Illumination of the Check Engine Light
- Reduced fuel efficiency
How to Fix P179A Chevrolet
- Diagnose the issue: Use a scan tool to retrieve the DTC and perform a visual inspection of the auxiliary transmission fluid pump and related components.
- Check transmission fluid level and condition: Ensure the transmission fluid level is adequate and inspect for any signs of contamination or debris.
- Inspect wiring and connections: Check for any damaged or loose wiring connections that may be affecting the operation of the auxiliary transmission fluid pump.
- Replace auxiliary transmission fluid pump: If the pump is determined to be faulty, replace it with a new unit following manufacturer's guidelines.
- Clear DTC and test drive: After completing the repair, clear the DTC from the vehicle's memory and test drive to ensure the issue has been resolved.
Cost to Fix P179A Chevrolet
The cost of repairing the P179A Chevrolet code can vary depending on the specific cause of the issue and the labor rates in your area. On average, the cost of replacing the auxiliary transmission fluid pump can range from $200 to $500, including parts and labor. Additional costs may apply if other components need to be replaced or if there are underlying transmission issues that require attention. It is recommended to obtain quotes from reputable auto repair shops in your area to get a more accurate estimate based on your vehicle's make and model. Labor rates typically range from $80 to $150 per hour, but can vary based on location and shop rates.
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Frequently Asked Questions about P179A Chevrolet Code
1. What does the P179A code mean on a Chevrolet?
The P179A code indicates "Auxiliary Transmission Fluid Pump Overspeed," meaning the auxiliary pump is running faster than expected.
2. What are the common symptoms of code P179A?
Symptoms may include erratic shifting, transmission overheating, illuminated check engine light, and reduced vehicle performance.
3. What causes the P179A code to appear?
This code can be caused by a faulty auxiliary transmission fluid pump, wiring issues, a bad pump control module, or incorrect sensor readings.
4. Can I drive my Chevrolet with the P179A code?
Driving with this code is not recommended, as it may lead to further transmission damage or poor vehicle performance.
5. How do I diagnose the P179A code?
Diagnosis typically involves checking the pump's electrical connections, testing the pump's operation, and scanning for related transmission control module faults.
6. How much does it cost to fix the P179A code?
Repair costs can vary widely but may range from $200 to $800 depending on whether the pump or wiring needs replacement.
7. Can a low transmission fluid level trigger the P179A code?
Low or dirty transmission fluid can contribute to auxiliary pump issues, so fluid levels should be checked as part of troubleshooting.
8. What tools are needed to fix the P179A code?
A professional-grade OBDII scanner, multimeter, and basic tools for inspecting and replacing the auxiliary pump or wiring are typically required.
9. Does the P179A code indicate a serious problem?
While not immediately catastrophic, ignoring this code can lead to severe transmission issues if the pump fails completely.
10. Can the P179A code be cleared without repairs?
The code may clear temporarily, but the underlying issue will likely persist, causing the code to return. Proper repairs are necessary.
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