Okay, here goes. My 95 Eldorado has a klanking sound coming from (possibly) the bottom end. I had a complete bottom end rebuild at 150K. It "klanks" along with the starter, and at idle speed (around 750 rpms). The engine sounds perfect at or above 900 rpms). Newer transmission, flexplate and torque converter. ( I checked them all, no play) My question.. what the hell is it? It sounds like someone banging two oil cans together (for those who remember oil cans). I thought the bottom end of the N* was bulletproof.
The only code I'm pulling is a P132 -knock sensor circutry. I don't think a bad knock sensor would even cause this noise.
Anyhow, any ideas? Would a bad belt tensioner make this noise? Belt driven accessories?
As always.. thanks for the input ahead of time.