my PCV line is keep popping off of its place. When i start the car and drove to somewhere stop the car go do whatever and when i come back to start the car it pops off and car stops. It does not do it when i am leaving home. I put some clamps on the both side of the middle part then it started to pop from where it connects to the where intake plenum is . i have a code for 2197 which is O2 sensor bank 2 lean , which i did not have before i have changed the valve cover and plenum gaskets . what could be the cause of this ? any help will appreciated.
when i start the car i also do not have lots of power , car gives me sign of like something is clogged , because it pops couple time then i actually get power . popping comes from bottom of the engine not the exhaust pipe from the back.i am allso loosing coolant not sure why.
popping sound is not sounds like metal to metal kind of sound.