[Bobbyk]

There was a loose hose, I finally had time to get to it today, runs better today.

It wasn't open, but it was not tight on either. I had to raise the car to find it and then fixed it, running well now!

It is surprising how much oil was in the intercooler too, I was expecting it to be dry and clean inside.

 

[chittychittybangbang]

Good to hear!

It's normal for a little oil to be in the intercooler. Diesels have a lot of blowby and it pressurizes the engine insides (crankcase). An oil mist will collect in the low spot (intercooler).

 

[Bobbyk]

Can't the intercooler do a better job if it was clean?

 

[iansw]

Yes, but it's constantly getting dirty from the inside. This is normal. You would be better off makins sure the outside is clean, no leaves or garbage bags blocking airflow.

 

[fstjetta]

That is normal.

Could it be better if it was clean on the inside - yes.

Could it be better if the fins aren't bent and the end tanks were metal instead of plastic? yes.

As long as it isn't pouring out, it is normal.