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Hello all. I've got a 1999 Expedition Eddie Bauer 4WD 5.4 2V and need to replace some plastic tubes. What I'm looking at replacing are the two large plastic tubes going to the air intake after the MAF/before the throttle body. One of them goes to the IAC at top rear of the intake and the other goes to the driver side valve cover. Both of mine have dry rotted boots and pinholes in the hard plastic. I'm trying to find any part numbers, be it discontinued Ford, Dorman, or any other so I can find them to buy. Can anyone help me out!?! When I reached out to FordPartsGiant they only told me it's been discontinued and took try after market. I'm like... That's why I'm here lol. I can't find part numbers anywhere! Image from an eBay listing. Mine isn't quite as dirty lol.
Last edited by Davadid; Jan 3, 2026 at 12:07 PM.
Reason: Adding context
It sounds like you're looking for the PCV tube? The IAC doesn't have any tube, but the rubber elbow on the PCV tube connects right below it and runs to the valve cover. Google PCV hose to your vehicle and see if it looks familiar.
It sounds like you're looking for the PCV tube? The IAC doesn't have any tube, but the rubber elbow on the PCV tube connects right below it and runs to the valve cover. Google PCV hose to your vehicle and see if it looks familiar.
The PCV is on the passenger side, the driver side hoses are a crankcase breather and one going to the back of the IAC/rear of throttle body. I know my Ford is old but they could give us some good exploded diagrams to pick the parts from lol.
Here's a better Pic of the tube and 2 elbows I'm looking for. It's just a crankcase breather hose but I can't find it anywhere. I'll have to try driving to a junkyard a hour away soon if I can't find the piece online.
