Knock Sensor Replacement at your home or office in Marana.

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customer ratings

(106)

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customer ratings

(106)


Recent Knock Sensor Replacement reviews in Marana

Excellent Rating

(106)

Rating Summary
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4
2
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4
96
4
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4

Peter

42 years of experience
1320 reviews
Peter
42 years of experience
Peter changed out the knock sensor on my crv. Turns out the one he replaced it with might also be faulty but Peter is working with me and the YourMechanic office to get a Honda made sensor instead. Peter is great at taking care of his customers and he always puts his customers best interest first.
I appreciate his professionalism, his attention to detail, and his mastery of mechanics. I would recommend in a hearbeat.

Richard

12 years of experience
601 reviews
Richard
12 years of experience
Extremely professional, knowledgeable, and friendly
He was nice and knew his stuff. Very calm and collective.

Theodore

15 years of experience
1293 reviews
Theodore
15 years of experience
Great guy with great service. Thanks bud.

Andrew

10 years of experience
668 reviews
Andrew
10 years of experience
Another amazing job!

Matthew

10 years of experience
136 reviews
Matthew
10 years of experience
Great guy thank you agin!!!

Emmette

35 years of experience
282 reviews
Emmette
35 years of experience
Emmett was great. We've requested him three times now and he's done an absolute great job.

Terrance

19 years of experience
63 reviews
Terrance
19 years of experience
He was great and he did the service in a timely manner. I will defiantly book him again for future services!

Leo

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

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.

Brian

17 years of experience
109 reviews
Brian
17 years of experience
friendly ! great service !


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.

Fast and easy service at your home or office

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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