Here's link of pcv https://www.pakwheels.com/forums/d-i-y-projects/211384-rejuvenating-santro#post3790629
What's the operating pressure of PCV?I sucked from manifold side and it let me. I blowed from manifold side and it instantly blocked (pop sound), but very small amount of air was leaking, is this normal behavior for pcv? When I used foot pump (>30 psi) under pressure it let air through faster? Do I need replacement?
No reply! Need put back in car.
Mechanic just check this valve by shaking it, if something rattle inside than it is kay:P
No pressure checking, check in manual.
Oh yeah! Its rattling like rattle snake.Where to get workshop manual? checked manual link, found none for santro
Place your finger over the open end of the hose. If the valve is working well, you will feel strong suction. Try shaking the valve. If its unobstructed, it should rattle. If its fouled, the rattle will be indistinct or non-existent.