Grinding noises
#1
Grinding noises
So I have a 2008 F150 FX4 and have a grinding sound coming from my front passenger side. I've currently had my iwe solenoid replace and vacuum lines replaced (lines were leaking) and the dealership gave my truck back saying it's fixed. Around 1600 RPM steady speed I can hear the sound again so I took it back and they replaced the actuator. Got the truck back around 4pm and heard the noise AGAIN that night. They have been taking it on road tests and still nothing. I drove it with the shop manager and he finally heard it but doesn't have a clue what it could be. Anyone have this issue and a resolution?
#2
Senior Member
Sounds like it could be the hub bearing on the passenger side. Would need to replace the entire hub assembly. I would think they would have checked it out when the did the iwe but you never know as the techs are single minded and only do the bare minimum thats required of them.
#3
Sounds like it could be the hub bearing on the passenger side. Would need to replace the entire hub assembly. I would think they would have checked it out when the did the iwe but you never know as the techs are single minded and only do the bare minimum thats required of them.
#5
Uberhater,Troll,Whatever
Well,... There are these to read through. Vacuum lines, or solenoid, or IWEs, or check valves... etc... Lots of shops still haven't found this information. Even at dealerships.
http://www.ford-trucks.com/forums/1211749-4wd-not-working-help-me-pinpoint-my-issue-plz.html#post12662529
https://www.f150forum.com/f72/how-di...m-esof-186872/
http://www.ford-trucks.com/forums/83...then-some.html
http://www.ford-trucks.com/forums/1211749-4wd-not-working-help-me-pinpoint-my-issue-plz.html#post12662529
https://www.f150forum.com/f72/how-di...m-esof-186872/
http://www.ford-trucks.com/forums/83...then-some.html
#6
#7
Senior Member
Quickest way to determine if it's IWE related is throw it into 4hi like 07_f150 suggested or pull the vacuum line from the IWE solenoid (force the front differential to lock the hubs). If you can't simulate the noise in either of those, it's related to the IWE system somewhere.
I had an issue where my passenger side IWE hub was shot but the leak was at the point where the passenger IWE was locked, and could generate enough vacuum loss to make the drivers side partially engage. This made it seem as if the drivers side was shot as it was making the noise, but it was actually the passenger side. This would only happen under load on hills, certain RPM, etc. The best way to test it then is by vacuum testing the hubs individually. The links 60DRB provided will help with that.
I had an issue where my passenger side IWE hub was shot but the leak was at the point where the passenger IWE was locked, and could generate enough vacuum loss to make the drivers side partially engage. This made it seem as if the drivers side was shot as it was making the noise, but it was actually the passenger side. This would only happen under load on hills, certain RPM, etc. The best way to test it then is by vacuum testing the hubs individually. The links 60DRB provided will help with that.
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#8
Mark
iTrader: (1)
yep...replace the other IWE and be done...
#9
Quickest way to determine if it's IWE related is throw it into 4hi like 07_f150 suggested or pull the vacuum line from the IWE solenoid (force the front differential to lock the hubs). If you can't simulate the noise in either of those, it's related to the IWE system somewhere. I had an issue where my passenger side IWE hub was shot but the leak was at the point where the passenger IWE was locked, and could generate enough vacuum loss to make the drivers side partially engage. This made it seem as if the drivers side was shot as it was making the noise, but it was actually the passenger side. This would only happen under load on hills, certain RPM, etc. The best way to test it then is by vacuum testing the hubs individually. The links 60DRB provided will help with that.
#10
Senior Member
Let us know how it works out