Question about 1999 Oldsmobile Bravada

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Rattling underneath when running

Is it a heat shield if so how to fix?

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Jack up and put jack stands for safety or drive up ramps. Start engine and find whats rattling. You can use the back side of a hammer and hold against exhaust shield to see if the rattle stops when you put it against it. If it is a shield you can get large dryer clamps and put them together and go around shield and tighten, that will stop rattle without replacing shield. Make sure you let exhaust cool before you try and clamp.

Posted on Nov 17, 2013

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