Chevrolet Trailblazer EXT Camshaft Position Sensor Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(90)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(90)

Camshaft Position Sensor Replacement Service

How much does a Camshaft Position Sensor Replacement cost?

On average, the cost for a Chevrolet Trailblazer EXT Camshaft Position Sensor Replacement is $198 with $58 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2003 Chevrolet Trailblazer EXTV8-5.3LService typeCamshaft Position Sensor ReplacementEstimate$644.18Shop/Dealer Price$710.32 - $886.87
2005 Chevrolet Trailblazer EXTL6-4.2LService typeCamshaft Position Sensor ReplacementEstimate$509.55Shop/Dealer Price$543.35 - $633.60
2006 Chevrolet Trailblazer EXTV8-5.3LService typeCamshaft Position Sensor ReplacementEstimate$537.93Shop/Dealer Price$578.89 - $690.48
2006 Chevrolet Trailblazer EXTL6-4.2LService typeCamshaft Position Sensor ReplacementEstimate$261.37Shop/Dealer Price$292.07 - $380.00
2005 Chevrolet Trailblazer EXTV8-5.3LService typeCamshaft Position Sensor ReplacementEstimate$537.93Shop/Dealer Price$582.87 - $697.43
2004 Chevrolet Trailblazer EXTL6-4.2LService typeCamshaft Position Sensor ReplacementEstimate$509.55Shop/Dealer Price$543.79 - $634.38
2003 Chevrolet Trailblazer EXTL6-4.2LService typeCamshaft Position Sensor ReplacementEstimate$509.55Shop/Dealer Price$543.46 - $633.79
2002 Chevrolet Trailblazer EXTL6-4.2LService typeCamshaft Position Sensor ReplacementEstimate$261.37Shop/Dealer Price$292.07 - $380.00
Show example Chevrolet Trailblazer EXT Camshaft Position Sensor Replacement prices

What is the Camshaft Position Sensor all about?

The camshaft position sensor monitors the position of the camshaft and reports that data to the car’s onboard computer system. This computer system works with sensors and other devices to keep the engine running. With data from the camshaft position sensor (CPS), the fuel injectors know when to fire.

When the sensor malfunctions, the computer does not know when to fire the injectors and may not fire them at all. The faulty readouts may also throw off spark timing, which will affect the car’s fuel economy. This sensor is used in conjunction with the crankshaft position sensor to control ignition timing. It is common for heat and oil leaks to cause this sensor to fail, due to where the sensor is located.

Keep in mind:

  • Damage to the camshaft position sensor is often caused by oil leaks; if this is the case, you may need another part of your car replaced or repaired.
  • When the camshaft position sensor is replaced, the alignment of the timing belt should be monitored so that no fluids leak onto the position sensor mounting area.
  • Some camshaft position sensors will need to have their software updated when they are installed.
  • Timing belts, mass air flow sensors, and crankshaft position sensors can all trigger the trouble code for the camshaft position sensor.

How it's done:

  • Scan test computer for trouble codes.
  • Pinpoint tests as per flow charts.
  • Remove and replace Crankshaft Position Sensor.
  • Clear trouble codes.
  • Check for proper operation and test drive car.

Our recommendation:

The camshaft position sensor isn’t checked in most regular services, but your vehicle has warning signs for when the sensor begins to fail. Because it sends information to the camshaft, when the sensor begins to fail your engine will begin to have trouble. Your engine may have a hard time turning on, staying on, idling, or running smoothly. Your Check Engine warning light should illuminate as well.

What common symptoms indicate you may need to replace the Camshaft Position Sensor?

  • Car stalls or does not start.
  • Car struggles to accelerate (does not maintain speed).
  • Check Engine light is on.
  • Car misfires.
  • Car stumbles or sputters on startup.
  • Car runs poorly or runs rough.

How important is this service?

The camshaft position sensor provides valuable information about the camshaft position to the computer management system. The computer system uses the information from the position sensor to determine when to inject more fuel. Without the sensor’s information, the computer won’t inject fuel properly, and your vehicle will stall or sputter.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Chevrolet mechanics

Real customer reviews from Chevrolet owners like you.

Excellent Rating

(90)

Rating Summary
84
2
0
2
2
84
2
0
2
2

Walter

47 years of experience
416 reviews
Walter
47 years of experience
Chevrolet Trailblazer EXT L6-4.2L - Spark Plugs - Tulsa, Oklahoma
Great knowledge

Thomas

44 years of experience
7 reviews
Thomas
44 years of experience
Chevrolet Trailblazer EXT L6-4.2L - Seat Motor Replacement (Driver Side) - Sun City, Arizona
Very professional, hard working, on time. Worked straight through until done. Can't say enough good things about him.

Clifton

31 years of experience
40 reviews
Clifton
31 years of experience
Chevrolet Trailblazer EXT L6-4.2L - Car Inspection - Columbia, South Carolina
Clifton was awesome, even at 8 am on a Saturday! He was knowledgeable and patient! Definitely would book him again!

Cameron

15 years of experience
95 reviews
Cameron
15 years of experience
Chevrolet Trailblazer EXT L6-4.2L - Car Thermostat Replacement - Kent, Washington
Awesome.

Excellent Rating

(90)

Rating Summary
84
2
0
2
2
84
2
0
2
2
Number of Chevrolet Trailblazer EXT services completed
990+
services done by our mechanics
TOTAL NUMBER OF EXPERT Chevrolet MECHANICS
1700+
experts on our platform

Recent articles & questions

How to Replace an Evaporator Temperature Sensor (Switch)
The air conditioning system has an evaporator temperature sensor that fails when there is no cold air or the air conditioning is inconsistent.
Symptoms of a Bad or Failing Yaw Rate Sensor
Common signs include the Check Engine Light, Vehicle Stability, or Traction Control Lights coming on and the Stability Control Light flashing.
How to Replace the Speedometer Sensor on Most Cars
The speedometer has a sensor that fails if the speedometer or cruise control do not work, the Check Engine Light comes on, or the vehicle loses power.

p1120 out of service code

Hi. The code P1120 is a problem with the throttle position sensor. The input from the throttle position was not what the computer expected and would cause the computer to go into a failure limp mode. When the computer is...

Stalling dying misfires

These issues may be related. The battery is basically just an electronic storage device which must be charged regularly by the alternator. A good battery that doesn't stay charged points to a failing alternator (https://www.yourmechanic.com/services/alternator-replacement). A bad alternator can also...

Where is the camshaft position sensor located on a 2011 Kia Optima EX GDI

Hi there - the camshaft position sensor (https://www.yourmechanic.com/article/how-to-replace-a-camshaft-position-sensor-by-mia-bevacqua) is located on the drive-side end of the top of the engine on your vehicle. It is a round black plastic housing - golf-ball size - attached to the engine with one...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (844) 997-3624 · hi@yourmechanic.com