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Ford Raptor Problems and Questions Forum
IWE vacuum supply explaination
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<blockquote data-quote="fordfreek" data-source="post: 1682847" data-attributes="member: 13302"><p>Check valve in iwe vacuum supply line keeps bleeding off vacuum causing the hub to try and engage whenever manifold vacuum is low for a period of time. A new check valve won't last 10 miles sometimes. I have replaced it 4 times and they just keep failing. And now the last couple days all the vacuum is gone out of my brake booster if the truck sits for 8 hours. Brake pedal is rock hard when I first start it. Thought maybe the device pictured may be my problem, just not sure what it does specifically.</p></blockquote><p></p>
[QUOTE="fordfreek, post: 1682847, member: 13302"] Check valve in iwe vacuum supply line keeps bleeding off vacuum causing the hub to try and engage whenever manifold vacuum is low for a period of time. A new check valve won't last 10 miles sometimes. I have replaced it 4 times and they just keep failing. And now the last couple days all the vacuum is gone out of my brake booster if the truck sits for 8 hours. Brake pedal is rock hard when I first start it. Thought maybe the device pictured may be my problem, just not sure what it does specifically. [/QUOTE]
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Ford Raptor Forums - General Information
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IWE vacuum supply explaination
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