Knock Sensor Replacement at your home or office in Weymouth.

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customer ratings

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customer ratings

(106)


Recent Knock Sensor Replacement reviews in Weymouth

Excellent Rating

(106)

Rating Summary
96
4
2
0
4
96
4
2
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4

Kenneth

19 years of experience
626 reviews
Kenneth
19 years of experience
On time, fast and very thorough. a true professional. He also pointed out some smaller jobs I could take care of. Thanks again Kenneth Semper Fi
Thorough, and I appreciated the honesty

Armando

31 years of experience
33 reviews
Armando
31 years of experience
Armando was very professional. On top of that, he is very knowledgeable with his craft, so in turn, I learned some things. For my first experience, this couldn't have gone better.

Juan

8 years of experience
139 reviews
Juan
8 years of experience
Juan was very knowledgeable and efficient. Juan was thorough and new wat needed to be done.

Paul

11 years of experience
33 reviews
Paul
11 years of experience
Prompt and did the work in a timely manner!

Ricardo

22 years of experience
199 reviews
Ricardo
22 years of experience
Rick was prompt, arrived within the time frame arranged. He was polite and very professional and answered my questions thoroughly. Service was completed in less time than quoted.

Joel

20 years of experience
912 reviews
Joel
20 years of experience
Joel was professional, extremely knowledgeable, and friendly. He took the time to explain the repair to us and help us understand the reason behind why the repair was necessary.

Leo

17 years of experience
52 reviews
Leo
17 years of experience
Great job, thank you

Deane

10 years of experience
340 reviews
Deane
10 years of experience
Deane arrived to my workplace early and finished the job on time.

Brandon

17 years of experience
275 reviews
Brandon
17 years of experience
Brandon is awesome. He is so thorough and does a great job of explaining what is wrong and what is being done to make the repair. He goes above and beyond. Request him specifically for your repair needs.

Steve

29 years of experience
49 reviews
Steve
29 years of experience
Steve was on time,extremely knowledgeable, was able to answer all questions I had.he also assured me that the work would be done clean and right the first time around.it was,i will be requesting Steve for future work and to my friends also,thank you for a job well done,G.E.Castro


Knock Sensor Replacement Service

What is the Knock Sensor all about?

The engine produces vibrations while running, and those vibrations change depending on how well the engine is running. When the engine is running poorly, often it can be corrected by adjusting the timing slightly. This is known as spark advance and retard. The knock sensor detects the vibrations in the engine and reports them back to the engine control module. From the frequency of the vibrations, the engine control module can advance or retard the timing to make the engine run smoother. The knock sensor is threaded into a hole in the engine block, cylinder head, or under the intake manifold. When the knock sensor isn’t operating properly, the engine will knock under load or when accelerating, and the Check Engine light will illuminate.

Keep in mind:

  • The knock sensor is an electrical sensor. If it fails, it will need to be replaced.
  • The symptoms of a faulty knock sensor are often misdiagnosed. A scan test can help isolate the failure without replacing unnecessary parts.

How it's done:

  • The vehicle is raised and supported on jack stands or the intake manifold is removed per manual as needed for access to the knock sensor.

  • The Knock Sensor is disconnected and unscrewed from the engine block.

  • The new knock sensor is installed, torqued to the correct specifications, and connected.

  • The vehicle is lowered off the jack stands or the intake manifold is reinstalled per manual.

  • The knock sensor is tested and the vehicle is road tested to ensure proper operation.

Our recommendation:

The knock sensor is commonly misdiagnosed as the symptoms related to it are similar to many other running problems. Have a mechanic check the codes in the engine control module to determine if the knock sensor is reading correctly. If there is a knock sensor-related code or the output from the knock sensor isn’t correct, the knock sensor needs to be replaced.

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

  • Engine knocks loudly especially at highway speeds or on acceleration
  • Unexplained poor fuel mileage
  • Decreased performance under load or on acceleration
  • Check Engine light is on

How important is this service?

The knock sensor can cause the engine to run lean and hot if it is faulty, or it can run rich and burn excessive amounts of fuel. Driving your vehicle with a faulty knock sensor can lead to further repairs required from the symptoms if not addressed promptly.

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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 (855) 347-2779 · hi@yourmechanic.com