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93 Suburban 350 / 5.7L distributor whine or buzz
I have an intermittent noise like a whine coming from my distributor I believe. The best way to describe it is it sounds like the sound of a failing old mechanical speedometer - kind of a buzz/whine. I checked the play in the distributor shaft today as I was cleaning the rotor & there was very little - a little bit up/down (~1/8") & hardly any noticable side to side. This comes & goes & I can't find a common thread of ambient temp or engine temp or anything else. It's been going on now for almost a year but I have this fear of it failing & stranding me. Any ideas? Thanks.
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Comments
Check the dizzy gear....they 'knife-edge'. This is common with these vehicles.
Here's what mine looked like on one side...other side looked perfect.
http://img.photobucket.com/albums/v35/hquick/Vortec%20Distributor/P9100304.jpg