if you have a burnt valve the cars tailpipe will make a pop,pop,pop,pop,noise,and if you place your hand on the tailpipe it will try to suck your hand in.CHECK your plug wires,caps and rotor buttons first.
are you sure is a valve noise?? or is a piston slap?
Depends on the noise... A loud tick tick noise is usually tappet adjustment. Easy to fix. After that it gets expensive since you need to pull the head off. Can be worn guide, but that is rarely 1. Can be burnt valve. Can be pitted camshaft; unlikely.
Yes, it'll make noise when it's signaled to purge, an for up to 30 seconds afterwards. That noise is going to be from air being evacuated from the canister.
you may have a bent valve
A compression test will show you if you have a burned valve.
Remove the head and have the valve reseated or replaced.
A compression test will show you if you have a burned valve.
My car, a 2008 Audi A4 Turbo was experiencing a cyclical chirping noise, similar to a noisy fan belt ( which it does not have). A defective PCV valve was found , however, the car after being repaired is still making that noise.
buy a new valve
valve who needs ajustment
check for bent or burnt valve check for bent or burnt valve