99 Chrystler 3.8L Engine Knock - HELP~
I am a new member and a new Chrystler Town and Country owner... a nice ride leather heated seats very nice. I'm impressed, never had one before.
I have a problem, the engine knocks, raps, it sounds like in the tappet area a distinct knock. It's not at the rocker arm area, too heavy a sound, it goes down the road nice doesn't skip or smoke, just knocks.
Today I tore it down, heads off, oil pan off... all the roller lifters look great, they all move like the same amount, the pushrods are fine and the rockers.
I checked each connecting rod bearing*(it's got 162,000 miles on it) all the bearings are intact, wear is evident for sure but not so you would hear a knock, I expected to find one spun.
Now I''m at a loss, I've looked at all the likely suspects and stilll no smoking gun~!
Any thoughts will be greatly appreciated... I heard that the cams break on some of these... if the cam was broke it wouldn't run very well...