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What does the IWE check valve for the 2018 Ford F-150 do?
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★ Top Answer
The abbreviation IWE on trucks like the 2018 Ford F-150 refers to the integrated wheel end system. This mechanism is responsible for locking and unlocking the front hubs when transitioning between two wheel drive and four wheel drive modes. The IWE check valve operates through a vacuum system to engage and disengage the front wheel hubs. If the check valve malfunctions, the vacuum won't hold and the front wheel hubs may try to engage on their own. This can pose a serious issue, especially if the 4WD system activates unexpectedly while driving at high speeds, potentially causing transmission problems. To prevent any issues, it is advisable to have the check valve inspected and possibly replaced promptly if it shows signs of failure.
More answers
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Do all vehicles with four-wheel drive come with an integrated wheel end disconnect system?
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In the 2018 Ford F-150, the IWE check valve is a part of the vacuum system used to connect with the wheel hubs.
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