Ok, so my 92 2wd 22re 5-speed has came down with a case of the rattles. It is pretty bad at an idle and goes away at highway speeds only to return under a load or at idle. I had the timing chain, guides, oil pump, and water pump replaced two years ago. I haven't adjusted the valves since they were adjusted with the new tc. the truck has 340,000 on it but still runs like a champ. Any help would be appreciated, I would rather start simple in hope of a cheap easy fix. I'm taking off the water pump belt to see if that changes anything and then a/c and smog belt. Sounds like its in the front/top of the motor.