I have a 94 mark viii with a 4.6l DOHC that started making very loud tick all the time. I checked rod bearings, timing chains and removed one lifter at a time to narrow it down to a cylinder and can't find anything wrong. It has good compression and good oil pressure. The sound seems to be coming from the top of the intake, the front of the engine and at the exhaust manifold when I use a stetoscope.
Wednesday, February 22nd, 2012 AT 4:56 PM