Quote Originally Posted by OTEP
Possibleng belt iyan. Minsan kasi may 'zone' lang kung kailan siya loose. Speeding or slowing the engine gets you out of that 'zone'.

Try tightening your belts first. Wala naman mawawala sa iyo.
tama si otep, pero talagang expert yan sa "zone" may time na wala tapos pag lampas mo sa rpm na yun nawawala. try pouring water over the belt and see or rather hear what happens.