So I got my FD running. It's got a new pineapple rebuild and it runs fine but after driving for about 5 mins or when the engine reaches operating temp, there's squeal/squeak kinda like a belt but its not the belts. It changes with engine speed and is coming from around the turbos, LIM/UIM. Anyone have any ideas?

 

I had a crazy squeaking noise coming from the same area and I realized it was my air pump. I guess the clutch in the pump is bad so whenever it is "ON" it sounds ridiculous, so I just unplugged it and the noise went away which told me that it was clearly the air pump making the noise.

Joe.

 

Spray belt dressing on the belts and make sure it's not the belts, that's the most common culprit. If you don't have belt dressing, tire shine stuff will work too.

If not that, it could be a metal heat shield rubbing against something that's making that noise.

Dale

 

Definetly not the belts, they were taken care of. It's weird, doesn't start till the cars good and hot.

 

Got it figured out, I had a sneaky suspision that there was a bad vacuum leak near the lim or under the uim... There were five or six hoses that had split at the nipple and were just dangeling there. It didn't think this was it because I just put in all new viton vac hoses. Here's some pics of what happened...