CM 2250 EGR Valve question, please help...

[Rawze]

(01-26-2024 )ahub86 Wrote:  ...Anybody know the purpose of the holes?

To prevent moisture buildup.

as far as how much air is coming of them, I cannot answer that.. but I would think that it should not be much at all.

The rule of thumbs with boost/egr/exhaust leaks = Pressure the circuit to 30 psi and see if it leaks more than 10-psi down in one minute. If it does, then something is most likely wrong with it.

I have seen them leak excessively and people have had to change out the egr valve because of it too... but i do not know what the acceptable leak rate actually is.