P1198 2014 GMC Sierra Code - Exhaust Gas Temperature Sensor 5 Performance Engine Running
Quick Answer
The P1198 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates a performance issue with Exhaust Gas Temperature Sensor 5 while the engine is running. Common causes include Faulty Exhaust Gas Temperature Sensor 5, Wiring or connector issues, Exhaust system leaks. 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
- P1198 2014 GMC Sierra indicates Exhaust Gas Temperature Sensor 5 Performance Engine Running.
- Common causes
- Common causes include Faulty Exhaust Gas Temperature Sensor 5, Wiring or connector issues, Exhaust system leaks.
- 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 P1198 2014 GMC Sierra Description
The P1198 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates a performance issue with Exhaust Gas Temperature Sensor 5 while the engine is running. This sensor is responsible for monitoring the exhaust gas temperature in the vehicle's exhaust system. The data collected by this sensor is crucial for the engine control module (ECM) to adjust fuel delivery and optimize engine performance. When the ECM detects that the performance of Exhaust Gas Temperature Sensor 5 is not within the expected parameters, it triggers the P1198 code.
Common Causes of P1198 2014 GMC Sierra
- Faulty Exhaust Gas Temperature Sensor 5
- Wiring or connector issues
- Exhaust system leaks
- ECM software issues
- Exhaust gas temperature sensor circuit malfunction
Symptoms of P1198 2014 GMC Sierra
- Decreased fuel efficiency
- Rough idling or stalling
- Check Engine Light illuminated
- Reduced engine power
- Increased emissions
How to Fix P1198 2014 GMC Sierra
- Diagnose the issue by using a scan tool to retrieve the specific trouble code and inspect the Exhaust Gas Temperature Sensor 5 and related components.
- Check the wiring and connectors for any damage or corrosion. Repair or replace as necessary.
- Test the Exhaust Gas Temperature Sensor 5 to ensure it is functioning properly. Replace the sensor if it is faulty.
- Clear the DTC and reset the ECM to see if the issue has been resolved.
- Test drive the vehicle to confirm that the symptoms associated with the P1198 code have been eliminated.
Cost to Fix P1198 2014 GMC Sierra
The typical repair costs for addressing a P1198 code on a 2014 GMC Sierra can vary depending on the specific cause of the issue. In general, the cost of replacing a faulty Exhaust Gas Temperature Sensor 5 can range from $100 to $300, including parts and labor. Additional costs may apply if there are wiring or connector issues that need to be addressed. It's important to note that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate.
Need more information about the P1198 2014 GMC Sierra code?
Need more information on how to fix the P1198 2014 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1198 2014 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1198 2014 GMC Sierra Code
1. What does the OBDII code P1198 mean in a 2014 GMC Sierra?
P1198 indicates an issue with Exhaust Gas Temperature Sensor 5's performance while the engine is running. It suggests the sensor is not operating within its expected parameters.
2. What are the symptoms of code P1198 in a 2014 GMC Sierra?
Common symptoms include reduced engine performance, poor fuel economy, the check engine light turning on, and possibly excessive exhaust emissions.
3. What causes the P1198 code to appear?
Potential causes include a faulty exhaust gas temperature sensor, wiring or connector issues, soot or debris buildup on the sensor, or problems with the engine control module (ECM).
4. How can I diagnose the P1198 code on my 2014 GMC Sierra?
Start by scanning the vehicle with an OBDII tool to confirm the code, inspect the sensor and wiring for damage or contamination, and test the sensor’s voltage and resistance against manufacturer specifications.
5. Can I drive my 2014 GMC Sierra with a P1198 code?
While the vehicle may still run, it’s not recommended to drive for extended periods, as the issue can cause reduced engine efficiency or damage to other components if left unresolved.
6. How do I fix the P1198 code on a 2014 GMC Sierra?
Repairs may include replacing the faulty exhaust gas temperature sensor, cleaning soot buildup, repairing or replacing damaged wiring or connectors, or reprogramming/updating the ECM.
7. How much does it cost to fix a P1198 code on a 2014 GMC Sierra?
The cost depends on the repair needed. Replacing the sensor typically costs $100–$300, while wiring repairs or ECM updates may vary based on labor rates.
8. Can a dirty exhaust system cause the P1198 code?
Yes, soot or debris buildup on the exhaust gas temperature sensor can cause it to malfunction, triggering the P1198 code.
9. Is the Exhaust Gas Temperature Sensor 5 the same as other exhaust sensors?
No, Exhaust Gas Temperature Sensor 5 refers to a specific sensor in the exhaust system that monitors temperature at a designated location, distinct from oxygen or NOx sensors.
10. Will clearing the P1198 code fix the issue permanently?
Clearing the code may temporarily turn off the check engine light, but the underlying issue must be resolved to prevent the code from returning.
Discuss the causes and fixes for P1198 2014 GMC Sierra OBDII Code
Code P1198 2014 GMC Sierra 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.