Klaus: I bought a stethescope, but the noise cannot be pinpointed. The noise sounds like the belt is slipping, but it isn't. I can even feel a vibration in the radiator cowl when the noise is occuring (not the electric fan). At the end of the noise-period, after about 45-60 seconds, the sound raises in pitch and diminshes until gone. Like a something rotating that finally "hooks-up".
PS has been bled, and turning the steering wheel during the noise does not affect the noise (and the PS works fine). Changing the alternator load likewise does not affect the noise.
I am really stumped by this!!
|