matts6887

What could this noise be?


u have to put speaker up to your ear w volume all the way up to hear it.

matts6887

It’s like a thumping or ticking sound or something

sometimes I can hear it when warmed up also

DennisMik

I hear a noise at approx 14 seconds of the video. It seems to happen right about when the engine starts to rev. This makes me wonder if you have a bad motor mount, which allows the engine to "jump" when you hit the gas.

matts6887

it doesn’t sound like a possible bearing or something like from the water pump or other accessory drive pulleys? Or even something more severe?

matts6887

It’s like sounding like a “diesel” or something which I don’t think is right

matts6887

Here’s another video I just took. Now it’s not as noticeable but u can still hear it a little when I rev it up.

Margate330

Volume is up and ears on speakers I hear a noise from the middle to near the later part of the video sounds a little like lower engine grumbling
, some echoing, and possible a little bearing whine but it is hard for me to hear it so it is a just a guess.
And some thunp thump thump tire noise.
Edit Video #2 you posted just heard it.
I am not sure but I'm still hearing the same but more pronounced especially the whine and the lower engine grumbling but I don't know.

Maybe others more ideas.

matts6887

so was I right in thinking it’s possibly a bearing in the water pump and or one of the other drive pulleys?

matts6887

Can anyone else give any ideas on this?

DennisMik

I listened to the 2nd video and I can't say I hear any particular noise. My other post was base on hearing some kind of one time thump at approx 14 seconds. Bearing noise from the engine is a lower tone and keeps repeating. A bad bearing can usually be heard at idle. A bad alternator bearing or water pump is usually more like a squeal.

Overall, I dont' really know, I'm taking a guess.

matts6887

Well I know I have a slight alternator squeak happening as the manager of the shop down the street from me pointed it out awhile ago. I just hope it doesn’t get any worse but it probably will as time goes on. I’m taking it to a shop Saturday morning to see what they find

cdnewton

What was the repair shop's diagnosis of the sounds you are hearing?

matts6887

so far they are saying they can’t hear anything unusual; but Ive been trying to tell them that what I hear keeps sounding like a “diesel” when cold on startup and accelerating when cold; but it’s not nearly as noticeable when warmed up. There has got to be some logical explanation for what I’m hearing; but I don’t know what it is.

teigen

We just had this exact issue on our RX350. It was a bad motor mount which allowed the exhaust to flex. We only heard it when the engine was cold. Shop ended up replacing motor mount and exhaust gasket. Problem solved.

I hope this helps.

one note - our shop claimed they could not hear anything wrong initially. We left it overnight when temps dropped, shop guy called next morning and told us they “ got her to talk today “... the repair happened and all was well.

matts6887

how much are we talking for motor mount probably not cheap I’m sure!