I've got a question that is boggling my mind, and quite frankly is g me off, I bought a 1985 Cougar a little while back and the engine makes a high pitch popping noise when running, and has low compression in the valves. Any thoughts and ways to fix would be great.
the only "POPING" noise i can remember is the poping noise the smog pump makes when a hose has come off or one of its inline pipes have broken.
first place id check would be where the smog meets the exhaust and trace backwards from there.
Ummm..... thats a new one. :dunno:
My thoughts exactly, also a correction, the popping noise is when starting.
Maybe it's one of those infamous "ler valves"? You know, the thing that sits right next to the flux capacitor.. ;)
does it make a poping noise when you give it gas or rev it?