what would cause a whinning and thumping noise (coming from the timing belt)on a 2009 chevy aveo 4cyl.
when starting my chevy aveo I hear a whinning and thumping noise coming from the area near the timing belt.what is the cause and how can I fix it?
you're going to have to pull the timing cover off under which you'll find a loose/worn tensioner and spring...frayed belt or delaminating belt~
should really have given this belt some consideration by 40,000 miles...hopefully you can catch this one before engine damage occurs~
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