Question about 1996 Oldsmobile Bravada
I've lost 2mpg in the past week. I have loud rattle which sounds like it is coming from the catalytic converter. Also when I try to kick it down I get a squeal or whistle noise that sound like a turbo but only while driving not when in park
Most likely your honeycomb is broken loose inside your catalytic converter.If it breaks into smaller pieces it can start to restrict the exhaust outout & make starnge sounds like a turbo winding up.I would replace the convereter & go from there.Hope this helps
Posted on May 16, 2009
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Posted on Jan 02, 2017
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