Alright, I have a 1999 Honda Passport (Isuzu Rodeo) with a 3.2L V6 engine, it seems to be burning oil as i was TWO quarts low when I heard a knocking, I changed the oil immediately and now there is a slight knock which seems to come from the engine at 1500 rpm only, not at idle. The interesting thing is, today I was annoyed enough to just drive down my street in reverse (no knock in reverse) and the knock lessened in sound, and also only occurs now at 2500 rpm in drive. One last part of the scenario, whenever I shut off the engine at idle(no knock) there is one knock, as if something is falling. So is this rod knock or not? Also why has it started to occur at a higher rpm and not nearly as loud?