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Heat shield rattle

It's the heat shield on the muffler happened to mines. Took it in at work
(Toyota dealership) lift it up at sure enough it's the shielding.
Reminds me of when Ford had the same problem-FOR YEARS-,their fix was a LARGE metal hose clamp.It was put around the shield and the problem went away!
 

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Royal Floor Sweeper
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4,338 Posts
If coming from UNDER, then the heatshield is a likely candidate. It is shaken by the exhaust (which moves around w/ the engine and exhaust pulses running through it. The fix would depend on what is causing the rattle. If hitting something (due to being misshapen by road debris hit), then a bend will provide more clearance. If a loose bolt, then tightening that bolt will be needed. If a crimp isn't tight enough (an on-exhaust heatshield, for example), forcing it tight will be needed (through pliers or something stronger).
The hard and most crucial part is the diagnosis . . .
 
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