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Old Nov 7, 2019 | 05:50 AM
  #1  
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Fabric underliner

Monday I dropped my truck at my buddies shop to have the three remaining o2 sensors replaced. I picked it up Tuesday afternoon. Typically if I have service done I get under it to see that the underliner is securely fastened in place as the dealer has botched this only a few times.

My truck was parked over a puddle so I didn't get under it and by the time I got home after getting fuel, I forgot. Got to work yesterday morning and thought, "oh schit, I never checked". I peak up under the truck and sure enough, the leading edge of the cover had dropped and had scraped the road all the way to work. Needless to say the cover is ruined and the front two retaining screws are gone.

A couple of years ago I ordered new retaining hardware from TASCA but now checking back with them, they have discontinued selling the cover.

Should I be concerned? is it super critical to have the cover on the truck? I really don't want to go to the dealer and pay dealer prices. TASCA really did a nice job of offering OE parts at a steep discount.

Thoughts?
 
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Old Nov 7, 2019 | 03:15 PM
  #2  
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If it were mine, I'd go without it at that point. Is that "underliner" specific to the Ecoboost engines? The only cover/guard under my 5.4 is steel.
My 2010 Fusion has a plastic one that I always had to remove for oil changes. After 10 years, I finally left it off to see if I experienced any additional road noise or MPG changes driving without it. No change whatsoever so I left it off for good.
 
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Old Nov 8, 2019 | 05:38 AM
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That's what i was thinking as well. It's been a couple of days now and I've seen no drop in MPG's and no additional noise.

My buddy offered to buy me a new one but I said no. He gave me a great rate on the sensors and labor, I'm not going to screw a guy trying to make a living.
 
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Old Nov 8, 2019 | 10:55 AM
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I've been running my truck without that fabric liner for 2 years now. No issues whatsoever. I just got tired of taking it off for service when it was wet.
 
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