Knock Sensor Replacement at your home or office in Horn Lake.

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customer ratings

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customer ratings

(106)


Recent Knock Sensor Replacement reviews in Horn Lake

Excellent Rating

(106)

Rating Summary
96
4
2
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4
96
4
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Rodney

35 years of experience
415 reviews
Rodney
35 years of experience
He's a Great guy ! But you have to send another mechanic to repair what's not fixed ! Xterra's engine Light is still on and it Sounds like it's Stalling on idle !
Rodney was very responsive to our need and pointed out a further concern for us to be aware of. He arrived promptly for the appointment and diligently worked to make the repair. Great work ethic.

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.
Brandon is great! Highly recommended.

Henry

33 years of experience
155 reviews
Henry
33 years of experience
Henry was a delight to have as my mechanic. Would use again.

Dominic

27 years of experience
189 reviews
Dominic
27 years of experience
Very communicative and did the work great. Thanks!!

Eliseo

11 years of experience
239 reviews
Eliseo
11 years of experience
Very friendly! Quick and effiecient! He was very knowledgeable and I’m already booking my next appointment with him! Thanks Eliseo!

Andrew

14 years of experience
346 reviews
Andrew
14 years of experience
Andrew was professional and timely. He was able to perform the repair within the time frame allotted. He was friendly and made sure my vehicle was safe to drive.

Shawn

11 years of experience
121 reviews
Shawn
11 years of experience
I would recommend him to all of my friends for sure!

Chris

19 years of experience
445 reviews
Chris
19 years of experience
Chris was great! There was a mix up in time and place and Chris made it work. He was efficient and quick and even recommended further car care that will be needed in the near future.

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

Aaron

28 years of experience
89 reviews
Aaron
28 years of experience
Excellent service, very flexible and courteous!


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.

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