missing bolts on front of engine...

[GMBCHEF at aol.com]

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 Hi.
 I had that same problem on my 4kq. Turns out one bolt that holds the lower
timing belt cover was missing, and that's where my oil leak was coming from.
 As far as the whine, two things come to mind. One, it could be the timing
belt is too tight or one of the covers rubbing on one of the cam pulleys.
Two, it may be your center differential or prop shaft carrier bearing
howling.
HTH
Gary