Ticking From Exhaust Heat Shields

[Thomas A. Iglesias]

Hi Everyone,

I have owned my sc400, 92,000 miles, since february and I am noticing that at idle in neutral if I hit the throttle the exhaust heat shields make a ticking noise. This is also true after a hot shut down they never seem to stop ticking any common problem here?

Thanks,

Tom

[JohnH]

My '95 SC300 has done it almost since day one.

I was told that it was because the exhaust system was well contructed of heavy duty Stainless Steel.

Don't know if that's the fact of the matter, but after 13 years the car still sounds the same, and still crackles when I shut it off.

[Lethal_Threat]

I was told it had to do with the primary cats. All of my heat shields are removed, including 90% of the stock exhaust system. The ticking still comes from the area of the cats.