SPONSORED LINKS

Bad knock sensor module?

Tiny
VANNAK
  • MEMBER
  • 2018 CHEVROLET MALIBU HYBRID
  • 1.8L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 98,500 MILES
Noise when the engine starts and no sound after, during drive. When on the stop sign and start up speed I got noise soon and lose.
This is a bad knock sensor module or?
Thursday, September 7th, 2023 AT 4:46 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,269 POSTS
Hi,

The knock sensor is designed to adjust ignition timing (fine-tune) under different conditions. When there is an issue, the sound is usually described as a valve ping. Is that what you are experiencing? Is the check engine light on and a stored code present related to the sensor?

Let me know. Also, here is a link you may find of interest:

https://www.2carpros.com/articles/how-a-knock-sensor-works

Also, if it is loud enough for you to record, please do so and upload it for me to hear.

Let me know.

Take care,

Joe
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, September 7th, 2023 AT 2:12 PM

Please login or register to post a reply.

Related Knock Sensor Content

Knock Sensor
GUIDE
Knock Sensor
Higher engine compression ratios require the use of higher octane fuels to help control detonation, these vehicles usually will have a label near the fuel door or in the...

Sponsored links