Cleaning oil from a charge air cooler

I took mine to a radiator shop to get cleaned.

 

Car wash. Degreaser, soap, rinse, and let dry

 

I would imagine they would have the necessary technology. You could mess around with a hot pressure wash with a degreaser input and connections to run it through for 30 minutes or till it runs clean, then compressed air to dry - but rad shop would probably be cheaper.

 

Borax or Cascade dish washing gel pour it in the CAC and let it set 30 mins then flush it with hot water

 

Cascade and a hose

 

They cleaned and pressure tested. The did my radiator and cac.
Doing my radiator at home I've used dawn, cascade and purple power. All worked.

 

I've always sent rads, ATA's, coolers etc to the local rad shop. They can flush them out and pressure test them.

 

Well, if it's only the charge air. Made of aluminum (assuming) measure the size of the bottom intake port. Find a way to plug it. I've used an old intake hose and a cap from the hardware store from the plumbing section. Then grab some good old aluminum brightener. Mix it 50/50 in a 5 gal bucket. Then let it sit for a few minutes. If you're overly concerned about the acid, you can also use vinegar. Regular distilled vinegar, old trick for engine and radiator flushes. If it's a lot of oil, throw a few scoops of cascade in a small bowl. Mix til dissolved.

Once you flush, make sure to set it in front of a heat source to dry a bit. (Won't hurt if you don't, but I don't like water in the chamber.)