what is this with shaking?????

[blkGSTspider]

i have Greddy Type S BOV
and i installed it with stock plastic piping
when i floor the gas and before i hit the full boost, car is like
pushes and doesnt push over and over,
so i just put the stock BOV back in
after that, i put the Greddy BOv again and now i feel shaking from the engine
with some drrrrr............ noice
when boost goes up fast and right before hit the full boost.
so i put the stock BOV back again and i still having same problem but less chance with the shaking..
it gets better, it gets less chance, when i reinstall the stock BOV or worse depend on how i put the stock BOV
is this shaking i just about leaking air??
does this problem damages my engine??
please help

 

[blkGSTspider]

anybody???

 

[DurangoGS-T]

most problems that don't seem to have a definite source can often be attributed to a boost leak. i'm not positive that that's what your problem is, but you can be by doing a leak test...

 

[VtecvrsTurbo]

Hey man i know what ## talking about, i had the stock BOV on then i but the Greddy bov on, and i had the same problem, i want to do a pressure test to, but i dont live near any of those home depots or anything, so i need to find somewhere to buy one.