Could be something as minor as an exhaust baffle.

 

Good inputs all, and many thanks. I had the belt, tensioner and idler arms replaced two weeks ago (of course it wasn't making the noise then), so I'm hoping it's something as simple as the alternator. I'll be taking it Robert's Automotive in Bolingbrook, GA - he's one of the best in the state - and find out for sure.

 

Let us know what he finds.

FYI, I know how it feels about having parts replaced and then a few days later the car starts making noises. I call this the "coincidental blaming" dilemma.

 

Problem is it's all to common to be coincidental. Have had cars come back from the dealer with worse problems then it went in for. Another reason I do as much of the maintainance and repair work as possible. With the help of the DIY's on this site and a couple of others it's just like having a Chilton's manual in my garage.

 

That's pretty funny cab83_750! This is a whole new experience for me because in my entire life since college (I am 59) I have never owned a car that wasn't covered by a warranty, and it's exactly because of what I am going through with this Porsche that I acquired six weeks ago (yes, I had it checked out at a reputable indy Porsche professional). The only other pre-owned car I've owned was a 2000 AMG SLK that I purchased from the dealer CPO and never had a lick of trouble with it. All my other cars - and I've owned plenty over the years - have been new and been traded long before the warranty ran out. I violated my own personal rule when I got this Porsche, and now I'm wondering if I will live to regret it. C'est la vie I guess.

 

Consider yourself lucky. I've been my mechanic since 18 and nowadays I wouldn't trust my vehicles to anyone.

I still get the kick of 'accomplishment' whenever I complete a task.

And yes, I was the one who diagnose my clanking sound and I did the WP and alternator replacements.

GL!

 

I guess I could go the route you did cab, I mean if I can fix a multi-million dollar stealth fighter, I ought to be able to tackle something as relatively simple as souped up VW. Problem is having the right SE (support equipment). Tools I got. A lift would be indispensable though, and I ain't go one of those.

 

These engines aren't the most quiet to begin with but that is quite a clatter and obviously unusual. Can't say I've heard anything like it before.

A simple trial could be removing the serpentine belt and running the car briefly to see if the noise is eliminated. Then you could scratch off all the ancillaries as potential sources.

Otherwise, I'd definitely cough up the hours worth of labor to have diagnosed by a dealer.

 

That's what I would do. Mark the belt direction before you remove it.

 

I switched to taking pics on my phone nowadays

Serpentine belts are great, except for situations like this. With the traditional multi-belts, you can do a process of elimination to determine the failing unit by removing one belt at a time. Nowadays, you can't.

 

It definitely sounds something is vibrating at low speed.

 

Okay, drove my baby to Roberts Automotive in Bolingbrook, GA. He took one look under the hood and said that the pulley on my pwr steering pump was wobbling. Turns out the buffoons who replaced my serpentine belt (see previous post in this thread) didn't tighten the pump down securely. Of course the wobbling will begin to damage the pulley bearings in short order, which will cause the noise you hear in the YouTube posts from earlier. So, pulley replaced, problem solved. Yes I went back to the buffoons. Of course the denied it. He said/she said = no win situation. Costly lesson learned.

Once again, heartfelt thanks to all for your inputs.

- Boomer

 

Well, that is "relatively" good news for you and all of us who were puzzled by this noise. Too bad the buffoons wouldn't step up, but at least you know who you won't be using again.

Would you mind sharing what the repair cost and who the first (offending) shop was?

In any case, I'm glad you are quietly back on the road.

 

Fifty bucks parts and two-fifty labor. Won't name the shop directly, but I will say that the place is the "Only" imported auto repair shop in Warner Robins. If you're local, that's enough for you to figure it out. - Boomer