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 a sensor in the car's exhaust system is telling the car's computer that the temperature of the exhaust gases is outside the normal range. It's like when you have a fever and your thermometer shows a temperature that's too high or too low.
The P247B code indicates that the exhaust gas temperature sensor on bank 1, sensor 4, is reading a temperature that is not within the expected range set by the vehicle's manufacturer.
The exhaust gas temperature sensor is responsible for monitoring the temperature of the exhaust gases as they exit the engine. This information is used by the engine control module (ECM) to optimize the performance of the engine and the operation of the catalytic converter. If the sensor detects a temperature that is too high or too low, it can indicate a problem with the sensor itself, the wiring, or the exhaust system.
• Check Engine Light illuminated
• Poor fuel efficiency
• Possible engine performance issues
• Faulty exhaust gas temperature sensor
• Wiring issues such as shorts or open circuits
• Exhaust system leaks or blockages
OBD-II: On-Board Diagnostics, a standardized system in vehicles for self-diagnosing and reporting
ECM: Engine Control Module, the computer that controls the engine's functions
• Use an OBD-II scanner to confirm the P247B code.
• Inspect the exhaust gas temperature sensor and its wiring for damage.
• Check for exhaust leaks or blockages.
• Replace the faulty exhaust gas temperature sensor.
• Repair or replace damaged wiring or connectors.
• Fix any exhaust leaks or remove blockages.
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Dodge Ram
• Regular maintenance checks of the exhaust system
• Ensure proper installation of sensors
• Avoid harsh driving conditions that may damage the exhaust
Sensor Issue
• Have the vehicle inspected by a professional mechanic.
• Avoid driving the vehicle excessively until the issue is resolved.
Check with your vehicle manufacturer for warranty coverage on emission-related components.
The P247B code has been noted in various vehicles as a common issue with exhaust temperature sensors, especially in models with advanced emission systems.
Moderate – It should be addressed soon to prevent further engine or emission system issues.
Ignoring this code may lead to failing emissions tests and potential fines in areas with strict emission regulations.
• Engine at operating temperature
• Vehicle in a safe and stable condition
The exhaust gas temperature sensor is typically located in the exhaust system, near the catalytic converter on bank 1.
Q: What happens if I ignore the P247B code?
A: Ignoring this code can lead to decreased fuel efficiency and potential damage to the catalytic converter.
Q: Can I drive my car with a P247B code?
A: While the car may still be drivable, it's recommended to address the issue soon to avoid further damage.
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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.