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Originally Posted by Sparky1349
Iceman, great to hear you got to the bottom of the issue with your serpentine belt.
If there is not gasket at all between the EGR valve and the manifold I would go to the effort of installing one. Obviously the EGR gets really hot, with the difference in expansion rates of the Iron EGR valve and the aluminum intake I think it's only a matter of time before you get a leak.
Sparky
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Thanks, I replaced the upper EGR gasket - it goes between the upper intake manifold and the bottom of the EGR. There's another one below the upper IM piece and the shiny flexible hose that mounts to bottom of upper IM and exhaust man, into the EGR, this is the one I missed. Went to the car wash last night to wash the under carriage and it tripped the Ox sensor and the check engine light came on, got it zeroed at AZ, guy tried to tell me I needed a new sensor, told him no way was I going back in there. The light's off for now.