MY 2005 F350 SET A CODE P0299 AND HAS OIL LEAKES BY THE FRONT CRANK AND REAR SEAL. TOOK IT TO THE DEALER AND WAS TOLD THEY ADJUSTED MY EGR VALVE FOR THE P0299 CODE, AND SOME PLATE WAS NOT TIGHT AND THAT WAS THE CAUSE OF MY OIL LEAKS. I WORK FOR ACURA AS A TECH. AND AS FAR AS I KNOW EGR VALVES ARE ELECTRONIC AND ARE NOT ADJUSTABLE. IF ANY ONE CAN BRING ME UP TO SPEED IF IM BEING JERKED AROUND OR NOT THAT WOULD BE HELPFULL. MY TRUCK HAS 28000 MILES ON IT AND I TOW A 5TH WHEEL WITH IT. THANX WILLIAM

 

Sounds like you got jerked around, as far as I know a "loose" EGR valve will not cause oil leaks. If it did not have a proper seal on the intake, it could cause a P0299. P0299 code could be caused by exhaust leaks, turbo, MAP sensor, Intake leaks or aftermarket intake can also cause this code. Also a stuck open EGR valve couldcause this, but is usually accompanied by a P0402, P0404 code as well.