Hi im new to the forum!!
I was wondering. I own a 1995 series ll 3.8 vin k bonneville. Recently she developed a knocking noise along with a tick, the engine is maintained well and on a regular basis. I replaced the lifters and that solved the tick, and i was told to check the harmonic balancer to solve the knock. Upon inspection the balancers rubber was discintegrated and wore, so i replaced. Upon starting the engine there was no sign of a knock, until engine warmed up slightly or ran for a few minutes, it seems as if the engine idled down, then started knocking and running badly, I am stumped and i was wondering if u guys may be able to help me. Also could a bad crank sensor or timing cause a knock, im uncertain. Finally the oil pressure is fine and engine runs very smoothly. please help!!