There is a very loud squealing noise whenever I accelerate at any speed. When I let off the gas it stops but continues as soon as I step on the gas again. And I notice that it starts surging around 50-55. Do you know what could be causing this very annoying problem. We have replaced the Fel-pro manifold gasket, cleaned the EGR valve, the trouble codes are P0102B, P0300B, P0404,P0620C,& P1189C.
Apr 5, 2010 at 3:03 PM