Hey guys I got to put my egr cooler back in this weekend and was going to do some updates while I'm in there. My question is I have a 2005 excursion and my motor was manufactured in 08/04 do you guys know if this had the bad stc fitting since its a later model 04? My hpop cover looks to be cast iron and not aluminum but is kinda hard to tell.

 

About 99% sure you have the early HPOP which does not have an STC fitting.

You'll know once the turbo is removed which version you have.

What does the valve cover emissions sticker say for engine year?

Josh

 

It says 2004 on the valve cover so I think I'm good I just wanted to have the parts all ready just in case and not have to get ripped off at my local dealership

 

Later models have the STC? I have a 2006 that Im going to be tearing down soon to do an oil cooler. Should I plan on doing a STC while Im in there?

 

yes, IMO you should at least pop the cover if you dont know for sure about it being upgraded.