Knocking noise from engine bay

[rwaargle]

I have the same issue of knocking sound from the engine bay..Its a clunk sounds from the passenger side during acceleration and decelerations at low speed and when starting after complete stop and on making turns during acceleration after complete stop. Took it to the dealer..tech recommended front shock replacement which was not in the warranty... got it done! After few days it still had that clunk noise .. back to the dealer and tech recommended Brake rotar cleaning and got it done ..it didn’t work tho .. still can hear that clunk which is driving me insane. I started living with it just like the pandemic..
Would appreciate any help on this.
2018 Wrangler JL 2dr - 45000 !!
Thanks

Is the knocking rotational, and occurs continuously when the vehicle is moving at low speed? If so, then you might want to get your u-joints and axles checked.

If it's just a single clunk whenever the vehicle accelerates and decelerates, then there might be something loose, or binding of some sort. Give your front springs a quick check, and make sure they're not rubbing against anything, including the mounts and where they come near the sway bar joints. Sometimes improperly installed springs will bow, and come into contact with other components. However, this might be unlikely since your dealer should have noticed when replacing the shocks. See attached photo for reference.

If you can upload a video of it happening, that'll help.

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[rwaargle]

Hi @rwaargle
If you would like our additional support while working through this with your dealer, please send our team a private message with your VIN. We'd be happy to look further into this for you.

Kathryn
JeepCares

Thank you. Sent you a message with pertinent info.

 

[JeepCares]

Thank you. Sent you a message with pertinent info.

Hi @rwaargle
Thanks for the follow up. We have responded to your private message, please continue to work with us there.

Kathryn
JeepCares

 

[Mohwrangler]

Is the knocking rotational, and occurs continuously when the vehicle is moving at low speed? If so, then you might want to get your u-joints and axles checked.

If it's just a single clunk whenever the vehicle accelerates and decelerates, then there might be something loose, or binding of some sort. Give your front springs a quick check, and make sure they're not rubbing against anything, including the mounts and where they come near the sway bar joints. Sometimes improperly installed springs will bow, and come into contact with other components. However, this might be unlikely since your dealer should have noticed when replacing the shocks. See attached photo for reference.

If you can upload a video of it happening, that'll help.

Is the knocking rotational, and occurs continuously when the vehicle is moving at low speed? If so, then you might want to get your u-joints and axles checked.

If it's just a single clunk whenever the vehicle accelerates and decelerates, then there might be something loose, or binding of some sort. Give your front springs a quick check, and make sure they're not rubbing against anything, including the mounts and where they come near the sway bar joints. Sometimes improperly installed springs will bow, and come into contact with other components. However, this might be unlikely since your dealer should have noticed when replacing the shocks. See attached photo for reference.

If you can upload a video of it happening, that'll help.

Hi @rwaargle

Here is the link of the video I’ve recorded.




Thanks

 

[Mohwrangler]

Hi @rwaargle

Here is the link of the video I’ve recorded.




Thanks

Since July 7, 2020 my Jeep is at the dealer but they are not able to reproduce the noise even after test driving multiple times. It looks like they won’t be able to address the concern so I’ll have to make an appointment at another dealer for a second opinion.

 

[GerJL]

Seems to be related to braking. Either an issue with your brakes or the act of stopping is causing two items to hit each other.

I would almost say a caliper is loose.

 

[rwaargle]

I finally got my vehicle back several weeks ago, and the problem has not returned since. The dealership replaced several components, to include the belt tensioner (again lol) and A/C compressor. What ended up fixing the issue was the oil pump. Apparently, the noise was coming from behind the timing cover, around where the oil pump is. Corporate tech suggested that the oil pump sprocket my be loose, resulting in the scissor gear being untensioned.

The oil pump problem was pretty deceptive. There was no indication to suggest the oil pump was the culprit, as my oil pressure reading was good. The noise sounded more like it was coming from the bottom end. I put about 450 miles since I got the vehicle back, and the problem hasn't returned. I'm just happy to have the Jeep back.

 

[Mohwrangler]

I'm wondering is it suppose to make a metal to metal clanking noise when I raise it and lower it manually with my hand or are the rubber bushings that go on each end warn?

 

[Mohwrangler]

I'm wondering is it suppose to make a metal to metal clanking noise when I raise it and lower it manually with my hand or are the rubber bushings that go on each end warn?

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