STX problem
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New User
Joined: Apr 2007
Posts: 4
Likes: 0
From: western Kentucky
STX problem
I am having a really bad viberation problem with my F-150 4X4. It viberates so bad you have to stop. The first time it did this I thought I had a flat. The tires and balance are ok. It dosn't do it all the time. It has done this about 6 times in the last 1000 miles. After stoping and starting back up it dosn't do it. You are driving along between 35 and 55 and all of a sudden it starts up. I took it to the dealership and they didn't find anything. Anyone have any ideas. Thanks Bill
Elder User
Joined: Dec 2006
Posts: 662
Likes: 2
From: CO
Search the forum for parking brake problems. It's sounds fairly similar to what others have reported from the parking brake being stuck. A quick check would be to feel the temperature (carefully) of the rear rotors and see if one or the other is smokin hot.
Thread Starter
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New User
Joined: Apr 2007
Posts: 4
Likes: 0
From: western Kentucky
Sorry I am so slow getting back to the thread. My STX hasn,t done the viberation dance for awhile. I would never have thought of the parking brake thing. I am going in for service next week, now I have something else for them to check. I'll let you know what they find. THANKS guys. Bill
Super Moderator
Joined: Oct 2002
Posts: 8,547
Likes: 6
From: MA
Its definitely the parking brake. It feels like all of a sudden someone threw a square tire on your truck right? The actuators freeze in place. Ford will have to disassemble them, clean them up, and reinstall with anti seize.
