Engine idling rough?

NRSHTGUN

MEMBER
2013 CHEVROLET IMPALA
3.6L
V6
2WD
AUTOMATIC
298,285 MILES

I have attached a video. Engine idling rough. I have replaced the timing components, camshaft sensors and solenoids. Replaced Engine Oil and Filter. Replaced Idler Control Valve.

Wednesday, October 23rd, 2024 AT 9:02 AM

4 Replies

NRSHTGUN

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3 POSTS

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Wednesday, October 23rd, 2024 AT 9:22 AM

KEN L

MASTER CERTIFIED MECHANIC
47,643 POSTS

It sounds like there is an issue with the valve train, I would remove the valve cover and inspect the roller flowers and camshaft lobes. Thanks for the video. On the second video I could not see much though? Were you trying to show the codes? If so, can you list them in your response, here is how to remove the valve cover. It could be a worn-out camshaft actuator as well. Please go over this guide:

https://www.2carpros.com/articles/repairing-engine-rough-idle-issues

Check out the images (below). Please upload pictures or videos in your response of any problems so we can see what to help you with.

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Wednesday, October 23rd, 2024 AT 12:02 PM

NRSHTGUN

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3 POSTS

Here's the other live feed on diagnostic tablet.

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Wednesday, October 23rd, 2024 AT 1:48 PM

KEN L

MASTER CERTIFIED MECHANIC
47,643 POSTS

Yep, these numbers act like there is an issue with the engine. I would also do a compression test to see if the engine is okay besides the noise. Thanks for the video, it helps.

https://www.2carpros.com/articles/how-to-test-engine-compression

Please go over this guide and get back to us. Also, let me know what you find when you remove the valve cover.

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Thursday, October 24th, 2024 AT 9:14 AM