I just bought my son this Rover cause it was at great price. Fixed the busted up driver window cranking system but didnt look at the engine knock yet. Knock is not there when driving buy only at idle speed and oil light flickers.....i am thinking oil pump loosing pressure or if anyone know if maybe something else i should start too look at?? Also where can I find an owners manual....there are way tooo many buttons. Oh, suspension was changed on this one but seems to be a little hard to handle on turns, any thoughts?Thank You.