Exhaust/Emissions problems
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Senior User
Joined: Sep 2003
Posts: 254
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From: Colorado
Exhaust/Emissions problems
After my 302 EFI rebuild...
I have a bad exhaust leak, its pretty loud. I've tightened all the manifolds and exhaust pipes real well, but it still makes noise. Almost sounds like it is coming from under the valve covers.
I am worried that my timing chain is off so the cam is not closing the exhaust ports when it is supposed to??
I also failed the emissions test witih 6% CO at 2500, rpm. It had .3% at idle.
Help please!
Thanks
I have a bad exhaust leak, its pretty loud. I've tightened all the manifolds and exhaust pipes real well, but it still makes noise. Almost sounds like it is coming from under the valve covers.
I am worried that my timing chain is off so the cam is not closing the exhaust ports when it is supposed to??
I also failed the emissions test witih 6% CO at 2500, rpm. It had .3% at idle.
Help please!
Thanks
