Cylinder Head Temperature Sensor Repair

Don't Let a Faulty CHT Sensor Put Your Engine at Risk!

Is your check engine light on Experiencing poor fuel economy or rough idling Your Cylinder Head Temperature Sensor might be the culprit. Don't wait until it's too late!

Why Choose Us:
  • Industry-leading 24-month/24,000-mile warranty
  • ASE-certified mechanics with specialized diagnostic equipment
  • Service for ALL makes and models
  • Same-day service available

Protect your engine and restore optimal performance today!

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Cylinder Head Temperature (CHT) Sensor Repair Costs

Below are the typical repair costs for CHT sensor issues, based on our standard labor rate of $125/hour:

Basic CHT Sensor Replacement

Labor Time:1-2 hours
Parts Cost:$50-150
Total Estimated Cost:$175-400

Complex CHT Sensor Replacement (Limited Access)

Labor Time:2-4 hours
Parts Cost:$50-150
Total Estimated Cost:$300-650

Wiring Harness Repair

Labor Time:2-3 hours
Parts Cost:$20-100
Total Estimated Cost:$270-475

Note: These are estimated costs and may vary depending on your specific vehicle make and model. Additional costs may apply if related components need replacement or repair.

What's Included in the Service:

  • Diagnostic testing
  • Removal of old sensor
  • Installation of new sensor
  • System testing and calibration
  • Final inspection

Warranty:All our CHT sensor repairs come with a 12-month/12,000-mile warranty on parts and labor.

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Cylinder Head Temperature (CHT) Sensor Repair Procedures

Standard CHT Sensor Replacement

Tools Required:Socket set, screwdrivers, wire brush, thermal paste (if applicable)

Steps:

  1. Allow engine to cool completely before beginning work
  2. Disconnect vehicle's negative battery terminal
  3. Locate the CHT sensor on the cylinder head
  4. Disconnect the electrical connector from the sensor
  5. Remove any mounting hardware securing the sensor
  6. Clean the mounting surface with a wire brush
  7. Apply new thermal paste if required by manufacturer
  8. Install new sensor and torque to specifications
  9. Reconnect electrical connector
  10. Reconnect battery and test operation

Threaded CHT Sensor Replacement

Tools Required:Socket set, thread sealant, wire brush, penetrating oil

  1. Allow engine to cool completely
  2. Disconnect battery negative terminal
  3. Locate threaded CHT sensor
  4. Disconnect electrical connector
  5. Apply penetrating oil if sensor is stuck
  6. Carefully unthread sensor using appropriate socket
  7. Clean threads in cylinder head
  8. Apply thread sealant to new sensor if required
  9. Install new sensor and torque to specifications
  10. Reconnect electrical connector and battery
  11. Start engine and check for proper operation

Surface-Mount CHT Sensor Replacement

Tools Required:Socket set, screwdrivers, thermal paste, cleaning supplies

  1. Ensure engine is completely cool
  2. Disconnect battery negative terminal
  3. Locate surface-mounted CHT sensor
  4. Remove mounting bracket or retaining clips
  5. Disconnect electrical connector
  6. Remove old sensor and thermal paste
  7. Clean mounting surface thoroughly
  8. Apply new thermal paste
  9. Install new sensor
  10. Secure mounting bracket or clips
  11. Reconnect electrical connector and battery
  12. Test for proper operation

Important Notes:

  • Always refer to vehicle-specific repair manual for torque specifications
  • Ensure proper thermal paste application when required
  • Check for damaged wiring or connectors during replacement
  • Clear any diagnostic trouble codes after replacement
  • Some vehicles may require ECU relearning after sensor replacement

Note: These are general procedures. Specific vehicles may require additional or different steps. Always consult your vehicle's service manual for exact specifications and procedures.

Understanding Cylinder Head Temperature Sensors

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ACylinder Head Temperature (CHT) Sensoris a critical component in internal combustion engines that monitors the temperature of the cylinder head. This vital sensor helps prevent engine damage by ensuring the engine operates within safe temperature ranges.

What is a CHT Sensor

The CHT sensor is a thermistor-type device that changes its electrical resistance based on temperature. It's typically mounted directly on the cylinder head or integrated into the cylinder head gasket, allowing it to accurately measure the metal temperature of the engine's cylinder head.

How Does it Work

The sensor works by:

  • Continuously monitoring cylinder head temperature
  • Converting temperature readings into electrical signals
  • Sending this information to the engine's Electronic Control Unit (ECU)
  • Allowing the ECU to adjust engine parameters accordingly

Why is it Important

The CHT sensor serves several crucial functions:

  • Engine Protection:Prevents overheating and potential engine damage
  • Performance Optimization:Helps maintain optimal engine operating temperature
  • Fuel Efficiency:Assists in maintaining proper fuel mixture for efficient combustion
  • Emissions Control:Helps reduce harmful emissions by ensuring proper engine temperature

Signs of a Failing CHT Sensor

Common Failure Symptoms of Cylinder Head Temperature (CHT) Sensor

Cylinder Head Temperature (CHT) Sensor Failure Signs and Maintenance Guide

Common Signs of CHT Sensor Failure

Check Engine Light
One of the first indicators of a failing CHT sensor is an illuminated check engine light, often accompanied by error codes P0117 or P0118.

Engine Performance Issues
• Poor fuel economy
• Rough idling
• Hard starting
• Black smoke from exhaust
• Decreased engine power

Erratic Temperature Readings
The temperature gauge may show inconsistent or unrealistic readings, either too high or too low for normal operating conditions.

Typical Service Schedule

Inspection Intervals
• Visual inspection every 30,000 miles
• Testing of sensor functionality every 60,000 miles
• Complete system diagnostic check during major engine service

Replacement Guidelines
• No set replacement interval - replace when failing or failed
• Typical lifespan: 80,000 to 100,000 miles
• Preventive replacement recommended during major engine overhauls

Maintenance Tips
• Keep sensor connections clean and free from corrosion
• Check wiring harness for damage during routine maintenance
• Ensure proper coolant levels and quality to prevent sensor damage

Note: Service intervals may vary based on vehicle make, model, and operating conditions. Always consult your vehicle's manual for specific maintenance schedules.

How It Works

  • Get a quote online or set-up a time to have your vehicle looked at.
  • Pick time slots that work for you, easily, online.
  • We will confirm appointments and send reminders.
  • Our mechanics bring everything that is needed to you.
  • All you have to do is provided a safe area for the work to be performed.

What we need from you

  • A safe place to work on your vehicle
  • No working on the side of busy roads
  • No working on unstable or steep surfaces.
  • We do not perform repairs during severe weather.
  • Authorization from a property owner or management.
  • Repair work done in a parking lot or at your  requires permission.
  • We do not do repairs in areas restricted by law.

Common Questions

Service Area

Our primary service area is greater Grand Rapids and includes Comstock Park, East Grand Rapids, Grandville,  Kentwood, Walker, and Wyoming

Our secondary service area is provided by our Belding location and includes: Belding, Greenville, Ionia and the sorrounding areas.

Contact us if you have any questions about where we provide services.

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