[Mason]

meford4u,Sep 8 2007, 01:29 AM Wrote:The rattle is most likely the front heat shield for the exhaust.  Rip it off.  It won't hurt anything.

And the rough idle could be the fact the MAF needs a clean.
Spray some carb cleaner into it after you disclocate it from the air flter.  The car will run a  little rough at first and then it will clear up.
It could be other things, but this is a cheap and easy place to start.
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Carb cleaner or intake medic?
I doubt it would matter but Intake medic is sensor safe... Carb cleaner isnt I dont beleive.