|05-21-2016, 03:46 PM||#1|
Join Date: Mar 2016
Location: Lansing MI
2007 ION-3 Sedan
what is the small hole above exhaust ports?
1999 sl2 dohc, roller head
On the cylinder head there are the 4 exhaust ports and in the middle above each is a small hole. What is that for and what does it do and where does it go?
It is plugged when the exhaust manifold gasket is is in place and doesn't vent through the gaskets....
1999 sl2 dohc roller head 210k miles
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|05-21-2016, 04:47 PM||#2|
Join Date: May 2006
Re: what is the small hole above exhaust ports?
Air pump emissions crap that special '99-'00's got and all '01-'02's got.
The proper way to fix a S-Series automatic is to replace it with a 5spd O:)
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