How to Replace an Exhaust Gas Recirculation (EGR) Temperature Sensor

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The exhaust gas recirculation (EGR) system is designed to lower combustion temperatures and reduce oxides of nitrogen emissions (NOx). To do this, exhaust gases are introduced into the engine combustion chamber to cool the combustion flame. Some vehicles use an EGR temperature sensor to determine EGR operation. This information is used by the powertrain control module (PCM) for proper EGR control.

On most modern diesel engines, an EGR cooler is used to cool the temperature of the exhaust gas before it enters the engine. The PCM relies on the EGR temperature sensors to monitor the cooler’s operation. Generally, one temperature sensor is located on the exhaust manifold, and one is located near the EGR valve.

The typical symptoms of a failed EGR temperature sensor include pinging, increased emissions and an illuminated Check Engine Light.

Part 1 of 3: Locate the EGR temperature sensor

In order to safely and efficiently replace your EGR temperature sensor you need a couple of basic tools:

Materials Needed

  • Free repair manuals Autozone
  • Protective gloves
  • Repair manuals (optional) Chilton
  • Safety glasses

Step 1: Locate the EGR temperature sensor. The EGR temperature sensor is usually mounted in the exhaust manifold or mounted near the EGR valve.

Part 2 of 3: Remove the EGR temperature sensor

Step 1: Disconnect the negative battery cable. Disconnect the negative battery cable and set it aside.

Step 2: Remove the electrical connector. Remove the electrical connector by pushing down on the tab and sliding it off.

Step 3: Unscrew the sensor. Unscrew the sensor using a ratchet or wrench.

Remove the sensor.

Part 3 of 3: Install the new EGR temperature sensor

Step 1: Put in the new sensor. Mount the new sensor in position.

Step 2: Screw in the new sensor. Screw in the new sensor by hand and then tighten it down using a ratchet or wrench.

Step 3: Reinstall the electrical connector. Connect the electrical connector by sliding it into place.

Step 4: Reconnect the negative battery cable. Reconnect the negative battery cable and tighten it down.

You should now have a new EGR temperature sensor installed! If this procedure is something you prefer to leave to the professionals, the team at YourMechanic offers expert EGR temperature sensor replacement.


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Recent EGR Temperature Sensor Replacement reviews

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YourMechanic EGR Temperature Sensor Replacement Service

Average Rating

4.9/5

Number of Reviews

127,991

Rating Summary
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119,436
4,771
955
658
2,171

David

15 years of experience
599 reviews
David
15 years of experience
Hyundai Sonata - Brake Pads Replacement (Front, Rear) - Vallejo, California
Great job as always
Dodge Dakota - Window Motor / Regulator Assembly Replacement (Passenger Side Rear) - Vacaville, California
David was very nice and knowledgeable. Work was done with no problems.

Andrew

8 years of experience
34 reviews
Andrew
8 years of experience
Ford F-250 Super Duty - EGR Temperature Sensor - Stafford, Texas
Nice

Abdul

10 years of experience
416 reviews
Abdul
10 years of experience
Chrysler 300 - EGR Temperature Sensor - Norcross, Georgia
The labor for doing the part went fine however my report mentioned that the tire pressure in the wheels was fine however I came out to discover one of my tires was really flat. and the mechanic didn't bother to mention it.

Henry

33 years of experience
144 reviews
Henry
33 years of experience
Chevrolet Colorado - 150,000 Miles Maintenance Service - Sicklerville, New Jersey
Henry did a thorough job and identified potential issues that I missed. Will definitely use his services again. Very trustworthy and knowledgeable.

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