Chevrolet Trailblazer EXT Manifold Absolute Pressure Sensor (MAP Sensor) Replacement at your home or office.

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Manifold Absolute Pressure Sensor (MAP Sensor) Replacement Service

How much does a Manifold Absolute Pressure Sensor (MAP Sensor) Replacement cost?

On average, the cost for a Chevrolet Trailblazer EXT Manifold Absolute Pressure Sensor (MAP Sensor) Replacement is $199 with $59 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2002 Chevrolet Trailblazer EXTL6-4.2LService typeManifold Absolute Pressure Sensor (MAP Sensor) ReplacementEstimate$273.76Shop/Dealer Price$307.05 - $398.82
2003 Chevrolet Trailblazer EXTV8-5.3LService typeManifold Absolute Pressure Sensor (MAP Sensor) ReplacementEstimate$303.53Shop/Dealer Price$344.75 - $464.28
2004 Chevrolet Trailblazer EXTL6-4.2LService typeManifold Absolute Pressure Sensor (MAP Sensor) ReplacementEstimate$264.75Shop/Dealer Price$296.30 - $386.76
2005 Chevrolet Trailblazer EXTL6-4.2LService typeManifold Absolute Pressure Sensor (MAP Sensor) ReplacementEstimate$264.75Shop/Dealer Price$296.30 - $386.76
2004 Chevrolet Trailblazer EXTV8-5.3LService typeManifold Absolute Pressure Sensor (MAP Sensor) ReplacementEstimate$303.53Shop/Dealer Price$346.25 - $466.90
2006 Chevrolet Trailblazer EXTV8-5.3LService typeManifold Absolute Pressure Sensor (MAP Sensor) ReplacementEstimate$303.53Shop/Dealer Price$344.91 - $464.57
2006 Chevrolet Trailblazer EXTL6-4.2LService typeManifold Absolute Pressure Sensor (MAP Sensor) ReplacementEstimate$264.75Shop/Dealer Price$296.31 - $386.79
2005 Chevrolet Trailblazer EXTV8-5.3LService typeManifold Absolute Pressure Sensor (MAP Sensor) ReplacementEstimate$303.53Shop/Dealer Price$344.77 - $464.32
Show example Chevrolet Trailblazer EXT Manifold Absolute Pressure Sensor (MAP Sensor) Replacement prices

What is the Manifold Absolute Pressure Sensor (MAP Sensor) all about?

In order to operate, your engine needs a combination of air, fuel and spark. Today’s engines are much more complex, and require sophisticated measuring of different elements to ensure proper fuel combustion. The manifold absolute pressure (MAP) sensor is responsible for some of these tasks.

Your MAP sensor measures the amount of air entering the manifold, the air temperature, and the number of revolutions in the engine. With this information, the car’s computer can adjust fuel and airflow to maximize performance while minimizing fuel consumption.

If your engine is not fuel injected, you probably do not have a MAP sensor. However, the vast majority of engines on the road today are fuel injected. For some automakers, the MAP sensor also serves a diagnostic function, allowing mechanics to analyze the performance of the EGR valve.

Keep in mind:

  • The MAP sensor is an electronic component, and can fail unexpectedly.
  • It is impossible to determine if the manifold absolute pressure sensor has failed with a visual inspection – it will require an experienced mechanic to diagnose the issue.
  • A failing MAP sensor will trigger the Check Engine light.

How it's done:

  • The vehicle hood is raised and supported
  • The defective manifold absolute pressure sensor is removed
  • The new manifold absolute pressure sensor is installed
  • The computer is tested and codes cleared with a scanner
  • The vehicle hood is closed and road tested for proper operation

Our recommendation:

While a failed MAP sensor won’t disable your car, it’s strongly recommended that you have it diagnosed and replaced as quickly as possible. Driving with a failing or failed MAP sensor can cause your engine to run “rich” or “lean” – that is, with either too much fuel, or too much air. Both of these conditions can damage the engine. However, there are many other conditions that can mimic a failed MAP sensor, including relatively minor vacuum leaks, so it’s important that one of our expert mechanics check the malfunction code and thoroughly inspect the engine.

What common symptoms indicate you may need to replace the Manifold Absolute Pressure Sensor (MAP Sensor)?

  • Erratic or rough idling
  • Delay in acceleration or deceleration
  • Check Engine light is on
  • Excess exhaust emissions resulting in failed emissions test

How important is this service?

Your engine’s MAP sensor is an important piece of technology, and should be replaced immediately to avoid potentially damaging your engine with lean or rich operating conditions and to ensure you’re able to pass your emissions test. If you notice any of the symptoms above, or your Check Engine light is on, have your vehicle diagnosed by one of our expert mechanics.

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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
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2

Hasibullah

23 years of experience
22 reviews
Hasibullah
23 years of experience
Chevrolet Trailblazer EXT V8-5.3L - Coolant is leaking - San Bernardino, California
He was such a nice man and really went out of his way to fix my vehicle. I highly recommend him to anyone.

Jermaine

12 years of experience
14 reviews
Jermaine
12 years of experience
Chevrolet Trailblazer EXT L6-4.2L - Power steering fluid is leaking - Riverdale, Georgia
Very professional explained what he was going to do a very polite

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.

Scott

37 years of experience
995 reviews
Scott
37 years of experience
Chevrolet Trailblazer EXT L6-4.2L - Serpentine/Drive Belt - Mesa, Arizona
Very quick and efficient

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+
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