Diagnosing weird sound from engine bay

[blueflames]

"It sounds more like marbles in a coffee can" ... IMS

[piper6909]

Originally Posted by blueflames

"It sounds more like marbles in a coffee can" ... IMS

Has this happened to you? It would be awesome if the IMS gave warning signs like that. All I've heard that it goes with no warning.

What I've read is that maybe it makes a strange sound for a sec or two then kaboom!

[sfkjeld]

Originally Posted by piper6909

Has this happened to you? It would be awesome if the IMS gave warning signs like that. All I've heard that it goes with no warning.

What I've read is that maybe it makes a strange sound for a sec or two then kaboom!

That’s my understanding. Anyway, I had an LN IMS bearing installed 2 years ago.

I so appreciate all ideas tho, thank you.

[itsnotanova]

Are you diagnosing this noise from the driver's seat? If so then you need to get out and check from the back. My first guess would be something with the exhaust. Heat shields are notorious for coming loose.

[sfkjeld]

Originally Posted by itsnotanova

Are you diagnosing this noise from the driver's seat? If so then you need to get out and check from the back. My first guess would be something with the exhaust. Heat shields are notorious for coming loose.

thanks. I does not seem tied to vibration tho. But yeah, I going to have put on a rack next week.

[Turbodad]

I also have this problem. The sound goes away at 1100 rpm. I thought it was because of the bad motor mount. Changed the mount, sound persist, but dang the handling is better. While changing the motor mount I am sure i found the real cause. The power steering. The slash tray was soaked wil ps fluid. The top of the motor is wet with ps fluid. I did not have the time to pull out the pump because it requires moving the ac compressor, not a big deal but I'm not up to it right now, maybe later this week. Car is a 2001 tiptronic with a swapped 3.2.

[ndfrigi]

any update of your issue?

if still trying to find the sound, try to remove the engine cover access behind the seats and then find a plastic tube to use like a stethoscope while engine running. Try to listen to your water pump, various pulleys, AC compressor and alternator.
I eliminated several sounds from water pump, 2 pulleys and engine mount and now last one need to fix is my compressor but no time yet to do it. Currently I have around 107k on ODO.

[Starter986]

Originally Posted by piper6909

What I've read is that maybe it makes a strange sound for a sec or two then kaboom!

This is about his car, not my first wife.