MAKES A LITTLE GRINDING NOISE

1998 Pontiac Bonneville

Tiny

ray9191

January, 14, 2012 AT 4:28 PM

My 1998 pontiac bonneville makes a little grind noise only when I rev it up high so I took the engine cover off and show a little leak by my head gasket and I put my hand on the head gasket cover and every time I heard that noise I felt something hit the belt and pulley looks fine we put 134a refrigerant with oil in the a/c to recharge it becuase we thought the bearing didnt have enough oil

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1 Answer

Tiny

factoryjack

January, 14, 2012 AT 4:46 PM

Adding oil to the compressor does nothing for the pulley bearing, if that is what you were hoping to achieve. If you have a grinding noise, try removing the belt and running it to try and duplicate the symptom, not for too long or overheat/battery discharge will occur. Spin each pulley by hand and try to differentiate which accessory is making noise.

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