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An old and failing EVAP Emissions Line might be the source of a vacuum leak on a 10th gen F150 !
Mine looks really deteriorated. Going Dorman on it.
As I understand it as the EVAP line progressively fails the CEL comes on....
Dorman. Almost guaranteed to fail and not work. And more than likely you will get EVAP codes. Not lean codes.
IMO don't go creating a problem by trying to fix one that isn't there. That's the wonderful thing about modern vehicles. The on board computers are usually great about sensing a problem and then kicking on the money light
new guy starts monday, trying to get his PC up and running with the websites we use daily(everything we do is either internet or cloud based) also made these 2 forms up with the P/S directors help
Dorman. Almost guaranteed to fail and not work. And more than likely you will get EVAP codes. Not lean codes.
IMO don't go creating a problem by trying to fix one that isn't there. That's the wonderful thing about modern vehicles. The on board computers are usually great about sensing a problem and then kicking on the money light
How many Dorman parts have you installed over the years ?
I have installed probably hundreds, and have had very few come back as failures.
Dorman definitely has their issues, but I think I'd be good with them for the application in this post. I wasn't impressed with their 3V intake, I can tell you that for sure.
Finally prepped, ceramic coated and installed a Y pipe on the 98 this weekend....fit perfectly. Ferettic 409 stainless steel Y pipe....what the auto manufactures use, -
that might be bad, wouldn't it? 
