Mazda P5 driver said:From my experience...
Car started bucking a little bit when stopped. This all happened after a 20 mile ride or so to the airport and did 70 the whole way. Didn't notice anything till the car was stopped and it was fine when I left. Then I heard a hard knock or clang. Mine came in and out sometimes doing it sometimes not. Sometimes just constant. I would cut the engine off and on to hear what was going on and to get it to stop or start back up again.
Yes, definitely inside the engine compartment. You can hear it outside the car easily. I don't think I got any CEL's though. This was at about 30k miles. around 33-34 now. 2003.5 MY.
I don't hear any sounds anymore...I guess I will have to either TSB comes out for this or problem shows up again.