Toyota Other Throttle Body

Hi, Here Is Problem: 1- Sometime I Hear Knock Sound If Drive Car From 0 Mph With Second Gear 2- If I Press Brake Pedal, Rpm's Idle...

I Was Told That I Need To Replace My Car's Pcv Valve. My Owners Manual Has Not Been Helpful. I Can Not Find The Location Of The Pcv Valve...

I Have A '98 Tacoma With 4 Cylinder Engine. For The Past 2 Winters The Engine "cuts-out" Mostly At Cruising Speeds. I've Had It Cheked Out...