Blocking the Y pipe

[Chuck144]

What would be the negitives from simply blocking the Y pipe where it meets the ERG cooler?

If the cooler is not leaking now and the exhaust flow is stopped wouldn't it be trouble free in the future?

Leave everything else alone just block the exhaust from entering it.

Am I missing something here?

[purplehorn1977]

yes that works but you can still ingest coolant if it would rupture. you need to block both ends to prevent that.

[smokersteve]

yes it is very effective. Since your intake is connected to the egr system you should also some how seal off the egr valve, by welding it, unpluging the electrical connector, or buy a dummy egr valve. If you decide not to block that egr valve your intake will bost in the egr system. this is not bad but just a waist of pressure loss.