Hi Everyone,
I'm still struggling to fix this issue, I have replaced the headcover(pcv) with new aluminum headcover and still the knocking didn't go away.
The hpfp was also replaced 4 or 5 months back.
What I have noticed recently are two things,
One there's knocking after long idling (there's no knocking on idle, only after idle, let's say 10minutes).
Second things I noticed when the coolant temp is above 100 C and also I was told by my mechanic that it could the Pistons failing.
Also i want to mention the engine run just fine and pulls strong and after driving the car at medium-high speed, there's no more knocking sound.
Please advise, if anyone has any suggestions.
Thanks.