Nissan Xterra Noise


#1

03 Xterra makes whinning noise at 2200-2500 rpm. Noise goes away outside this range. At 3000 rpm sounds like tachy cable rattles. Have had Nissan check trans, diff, muffler. No luck. Help!!


#2

Could be an accessory (water pump, alternator etc.) bearing.
Use a piece of hose as a stethoscope.