Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer has detected a problem with the temperature of the exhaust gases. It's like when a thermometer says it's too hot or too cold outside. This sensor is checking the temperature of the gases coming out of the engine, and it's saying something is not right.
The P247A code is triggered when the exhaust gas temperature sensor for Bank 1 Sensor 3 detects a temperature that is outside the expected range.
The exhaust gas temperature sensor measures the temperature of the exhaust gases leaving the engine. Bank 1 refers to the side of the engine with the number one cylinder. Sensor 3 is typically located further down the exhaust system, often after the catalytic converter. This sensor helps monitor the efficiency of the catalytic converter and ensures that the exhaust system is operating within safe temperature limits.
• Check Engine Light is on
• Poor fuel economy
• Possible engine performance issues
• Faulty exhaust gas temperature sensor
• Wiring issues such as shorts or open circuits
• Exhaust leaks near the sensor
OBD-II: On-Board Diagnostics, a standardized system for self-diagnosing vehicle issues.
Bank 1: The side of the engine containing cylinder number one.
Catalytic Converter: A device that reduces harmful emissions from the engine's exhaust gases.
• Use an OBD-II scanner to confirm the code
• Inspect the wiring and connectors for damage
• Test the exhaust gas temperature sensor with a multimeter
• Replace the faulty exhaust gas temperature sensor
• Repair or replace damaged wiring
• Fix any exhaust leaks
• OBD-II scanner
• Multimeter
• Socket set
$100 - $300
Moderate
• Ford F-150
• Chevrolet Silverado
• Dodge Ram
• Regularly inspect exhaust system components
• Ensure proper maintenance of the vehicle
• Address any exhaust leaks promptly
Sensor Issue
• Do not ignore the Check Engine Light
• Have the vehicle inspected by a professional
• Avoid driving the vehicle if performance issues are severe
Check with the vehicle manufacturer for warranty coverage on emissions-related components.
This code has become more common as vehicles have become more reliant on sensors to monitor emissions and engine performance.
Moderate – It should be addressed soon to prevent potential damage to the catalytic converter.
Driving with a malfunctioning exhaust system can lead to increased emissions and potential legal issues.
• Engine at operating temperature
• Vehicle in a safe, stationary position
The exhaust gas temperature sensor is located in the exhaust system, typically after the catalytic converter on Bank 1.
Q: Can I drive with a P247A code?
A: It's not recommended to drive for extended periods with this code, as it may lead to further damage.
Q: How do I know if my exhaust gas temperature sensor is bad?
A: Symptoms include the Check Engine Light, poor fuel economy, and engine performance issues. Testing with a multimeter can confirm the sensor's condition.
Budget · Enhanced code reader
A wired color-screen reader with readiness hotkeys, live data, code definitions, and data logging.
Good for emissions-related codes because it exposes readiness monitors and live powertrain data.
View on Amazon
Specialty · Smoke machine
Helpful for finding EVAP and vacuum leaks that are hard to see with visual inspection alone.
Helpful for tracking down EVAP and vacuum leaks that can trigger emissions faults.
View on Amazon
Specialty · O2 sensor socket
Helpful when the code points toward exhaust or oxygen-sensor work and space is tight.
Useful when the diagnosis points toward oxygen-sensor removal or replacement.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.
Fitment Required · Vehicle-fitment part
Relevant when catalyst-efficiency or emissions faults persist after proper diagnosis.
Catalyst-efficiency faults sometimes point toward converter problems after proper testing.
Catalytic converters are highly vehicle-specific and should not be purchased by code alone.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.