on my 2005 v6 ford mustang, i have a problem. All of the cylinders are at about 185-195psi except 2. 2 of them are at 170psi and both of those make a ticking noise when the engine is on and both of their spark plug gaps close when i start. Dont tell me i have the wrong plugs because i dont. I have tried 3 new OEM plugs on each and the same thing happens. What is wrong and how do i fix it?
Read more: Low compression cause ticking?
