P247B Code - Exhaust Gas Temperature Out of Range Bank 1 Sensor 4
Quick Answer
The Powertrain Control Module (PCM) continuously monitors the Exhaust Gas Temperature Sensor (EGTS) for proper circuit continuity and out of range high values. Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) Bank 1 Sensor 4, Exhaust Gas Temperature Sensor Bank 1 Sensor 4 harness is open or shorted, Exhaust Gas Temperature Sensor Bank 1 Sensor 4 circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P247B indicates Exhaust Gas Temperature Out of Range Bank 1 Sensor 4.
- Common causes
- Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) Bank 1 Sensor 4, Exhaust Gas Temperature Sensor Bank 1 Sensor 4 harness is open or shorted, Exhaust Gas Temperature Sensor Bank 1 Sensor 4 circuit poor electrical connection.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Code P247B Description
What are the Possible Causes of the DTC P247B?
- Faulty Exhaust Gas Temperature Sensor (EGTS) Bank 1 Sensor 4
- Exhaust Gas Temperature Sensor Bank 1 Sensor 4 harness is open or shorted
- Exhaust Gas Temperature Sensor Bank 1 Sensor 4 circuit poor electrical connection
- Exhaust leaks
- Excessive particulate matter buildup on sensor
How to Fix the DTC P247B?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P247B code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Makes
- P247B Chevrolet — Exhaust Gas Temperature Out of Range Bank 1 Sensor 4
- P247B Dodge — Exhaust Gas Temperature Out of Range Bank 1 Sensor 4
- P247B Ford — Exhaust Gas Temperature Out of Range Bank 1 Sensor 4
- P247B GMC — Exhaust Gas Temperature Out of Range Bank 1 Sensor 4
Frequently Asked Questions about P247B Code
What does the OBDII code P247B mean?
P247B indicates that the exhaust gas temperature (EGT) sensor 4 on Bank 1 is detecting a temperature that is out of the normal range, suggesting a potential issue with the exhaust system or sensor itself.
What are the common symptoms of code P247B?
Symptoms may include the check engine light turning on, reduced fuel efficiency, poor engine performance, or the vehicle entering limp mode.
What causes the P247B code to appear?
Common causes include a faulty EGT sensor, damaged wiring or connectors, excessive soot buildup, exhaust leaks, or a malfunctioning diesel particulate filter (DPF).
Can I drive with a P247B code?
While the vehicle may still be drivable, continuing to operate it without addressing the issue could lead to further damage to the exhaust system or other components.
How is the P247B code diagnosed?
A mechanic will typically use an OBDII scanner to confirm the code, inspect the EGT sensor and wiring for damage, and check for exhaust leaks or problems with the DPF system.
How do I fix the P247B code?
Repairs may involve replacing the faulty EGT sensor, repairing damaged wiring, clearing soot buildup, fixing exhaust leaks, or servicing the DPF system.
Can a dirty diesel particulate filter cause the P247B code?
Yes, a clogged or malfunctioning DPF can cause incorrect temperature readings, which may trigger the P247B code.
How much does it cost to repair a P247B code?
The cost varies depending on the issue, but replacing an EGT sensor typically costs between $100 and $300, while more extensive repairs like DPF servicing or wiring repairs may cost more.
Could a software update fix the P247B code?
In some cases, manufacturers release software updates to address sensor calibration issues, so it's worth checking with your dealer if a software update is available.
What happens if I ignore the P247B code?
Ignoring the code can lead to reduced performance, higher emissions, potential damage to the exhaust system, and increased repair costs over time.
Discuss the causes and fixes for P247B OBDII Code
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