Knock Sensor Replacement at your home or office in Woodbridge.

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customer ratings

(106)


Recent Knock Sensor Replacement reviews in Woodbridge

Excellent Rating

(106)

Rating Summary
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4
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Mila

10 years of experience
128 reviews
Mila
10 years of experience
Mila Bayat is the best mechanic I have ever experienced with my car. He is polite and honest and willing to go extra mile. I will recommend Mila Bayat to anyone %100 without any doubt. Mila will keep you engage of what is going on and very respectful. Best mechanic ever!!!!!!! I really liked the work Mila did on my car. This a true asset to your company, Your Mechanic.

Patrick

32 years of experience
1216 reviews
Patrick
32 years of experience
always does a great job and answer any question

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.

Chuy

13 years of experience
250 reviews
Chuy
13 years of experience
Professional. Answered all questions with detail. Gave good advice. Would recommend and will be requesting him for any future work.

Jeff

32 years of experience
441 reviews
Jeff
32 years of experience
Jeff was a very competent and friendly mechanic. He was very knowledgeable and helped to identify other issues that will need to be repaired on my vehicle. He performed his job flawlessly even though the parts department/customer service did not perform their duties as I would expect. They sent out /ordered the incorrect parts which delayed the repair.

James

30 years of experience
550 reviews
James
30 years of experience
Thank you. He did the job.

Daniel

20 years of experience
346 reviews
Daniel
20 years of experience
Daniel was professional and job was complete under 30minutes. Will definitely use again.

Alex

15 years of experience
435 reviews
Alex
15 years of experience
Very knowledgeable and the most friendly mechanic I've met on YourMechanic. I will trust him to take care of both of my cars.

Russell

26 years of experience
271 reviews
Russell
26 years of experience
Russell gets it done

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!


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