GMC Other Repair Question
Oldsmobile acting really weird HELP!!!!
This isn't something I know much about, but if I were in your shoes, this is what I would think about first...
Sound could be coming from bad bearings in any of the components along the drive belt. Add in the rough idle and dying when a sudden shift within the engine is made (braking, causing the engine to slow down and sensors compensate) makes me think Timing, Cam or Crank bearings. Those would be things I'd look into first...and rule out what I could.
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