2004 - 2008 F1502004, 2005, 2006, 2007 and 2008 Ford F150's with 5.4 V8, 4.6 V8 or 4.2 V6 engine
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Any help would be greatly appreciated. I am getting a grinding sound from the left front wheel while driving straight.. The sound stays the same when brakes are applied and does not change when selecting 4wd or 2wd.. I pulled the wheel off and had a look, but saw nothing unusual.. Any thoughts on steps to diagnose/repair the issue?
04 F-150 5.4 4x4
After reading the thread everything you need to know about IWE's here is what I have found out; after disconnecting the line from the intake at the check valve sound is still present whether in 4low,high or 2wd it gets a little quieter when turning right. I found that the vac line coming from the left IWE is broken.. I will get on replacing that as soon as I can.. my concern now is since disconnecting the vacuum from the intake to the check valve made no difference I was hoping to make it drivable until I could replace the vac line.. anyway since it made no difference does this likely mean there are more issues other than the broken vac line... I am moving next week so I desperately need to make this truck drivable.. Help!!
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