SOLVED!!! Loud Screech from the 454!!!
***EDIT*** Note 1: I believe all videos posted below are a must-view before comment... Note 2: Belts reinstalled now since they nor the components they run are the culprit. I picked up ...
Forum Discussion
It's coming to haunt you...
It was intermittent to begin with. Why do you wonder that it does not appear and disappear on command of a pair of Vice Grips (or not)?
Reassemble and DRIVE THE RIG with this small hose PULLED OFF and a sheet metal screw blocking off the uncoupled hose.
I was forced to diagnose this krap when customers gave orders for a new alternator, and I knew the WHISTLE to be emanating from the Air Injection Reaction Pump. GM's had this setup for years - the AIR pump nestles just below the alternator. I always had Armando pull all the belts just as you did and found many a flaky water pump bushing, weeping power steering pump or hose and noisy AC clutch bearing.
It was intermittent to begin with. Why do you wonder that it does not appear and disappear on command of a pair of Vice Grips (or not)?
Reassemble and DRIVE THE RIG with this small hose PULLED OFF and a sheet metal screw blocking off the uncoupled hose.
I was forced to diagnose this krap when customers gave orders for a new alternator, and I knew the WHISTLE to be emanating from the Air Injection Reaction Pump. GM's had this setup for years - the AIR pump nestles just below the alternator. I always had Armando pull all the belts just as you did and found many a flaky water pump bushing, weeping power steering pump or hose and noisy AC clutch bearing.
