Strange noise while driving - Page 2

Strange noise while driving

This is a discussion on Strange noise while driving within the 2nd Gen F150 Ecoboost forums, part of the 2nd Gen F150 Ecoboost Forum (2015+) category; Originally Posted by snakebitten That little $8.00 check valve has caused many folks grief. And a few folks replaced expensive damaged 4WD parts. Thanks GearHead ...

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Thread: Strange noise while driving

  1. #11
    Ecoboost Pro DNA Dan's Avatar

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    Quote Originally Posted by snakebitten View Post
    That little $8.00 check valve has caused many folks grief. And a few folks replaced expensive damaged 4WD parts.

    Thanks GearHead for the vote of confidence.

    I guess if I keep swinging, I'd eventually get out of my slump.

    Sent from my SM-N950U using Tapatalk
    That's what, the third one in the past few weeks? Perhaps we should document the part number, where it's located and what year trucks this can be found on. Not sure about 2012, but this is definitely something I am going to buy and throw in the glove box. Can you imagine towing on a very long trip and having to ride 4wd the whole way home on the dry interstate? Good grief!
    2012 SCREW Eco FX4 Tuxedo Black, Fully loaded, Max Tow, 3.73 rear.
    ARE Z-Series topper w/Yakima rack, Bilstein 5100's, StopTech Sport brakes, BFG T/A KO2 on stock rims, RXP Catch can w/UPR check valves, FR Gen 2 Radiator, Saudi Trans cooler, CR Performance Engineering exhaust manifolds, Firestone Air bags.

  2. #12
    Ecoboost Master Envious's Avatar

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    I replaced YG-429 on my 13. It is right under the IWE solenoid on the drivers side. It is a 3 valve little guy. I originally bought the one the op had but could not find it lol so I think that is for the newer trucks. I got mine off of amazon.
    2013 FX4 - Black Betty
    Boostking Tuned

  3. #13
    Rookie zukgod1's Avatar

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    It's been a few days now and I can confirm is repaired.
    Super strange that that little valve failed when it did but it's all good now.

    Not sure if any damage occurred and without taking everything apart in not sure how to tell.

    Thanks for the help everyone.

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  5. #14
    Gold Supporting Member snakebitten's Avatar
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    Quote Originally Posted by zukgod1 View Post
    It's been a few days now and I can confirm is repaired.
    Super strange that that little valve failed when it did but it's all good now.

    Not sure if any damage occurred and without taking everything apart in not sure how to tell.

    Thanks for the help everyone.
    If you can go into and out of 4WD gracefully and without unusual issue, I'd say you caught it in time.

    For the next couple of days just give that feature a workout.

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    zukgod1 likes this.
    2018 KingRanch Kingsville Edition- Gen2 3.5 - Runs SO good on Factory tunes. Simply amazing. Good Job Ford

  6. #15
    Ecoboost Pro DNA Dan's Avatar

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    Quote Originally Posted by zukgod1 View Post
    It's been a few days now and I can confirm is repaired.
    Super strange that that little valve failed when it did but it's all good now.

    Not sure if any damage occurred and without taking everything apart in not sure how to tell.

    Thanks for the help everyone.
    Would you be so kind as to post the part number, where it's located and the year/trim of your truck? Thanks!
    2012 SCREW Eco FX4 Tuxedo Black, Fully loaded, Max Tow, 3.73 rear.
    ARE Z-Series topper w/Yakima rack, Bilstein 5100's, StopTech Sport brakes, BFG T/A KO2 on stock rims, RXP Catch can w/UPR check valves, FR Gen 2 Radiator, Saudi Trans cooler, CR Performance Engineering exhaust manifolds, Firestone Air bags.

  7. #16
    Rookie zukgod1's Avatar

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    Quote Originally Posted by DNA Dan View Post
    Would you be so kind as to post the part number, where it's located and the year/trim of your truck? Thanks!
    It's a 7A788.
    It's an assembly of course.

    Sent from my Pixel 2 XL using Tapatalk
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  8. #17
    Rookie Ryuske's Avatar

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    I had to replace that valve on my 2016 3.5 as well. It's by the brake booster on the drivers side, right near the firewall. I don't recall exactly where cause it's been a little since I replaced it, but I can take a picture of the location later and post it if anyone is curious.

    Also, you can get a higher quality aftermarket check valve. I didn't lol, but you can and it'll probably save you from ever having to do this again.

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