Hello all,
I have a 2005 F150 STX with the 4.6 engine and 70,000 miles. I just noticed that when in reverse and stopped there is a vibration and a sound similar to when the ABS kicks in but much quieter. I can feel it slightly in the brake pedal. If I put it in neutral it slows and in drive it goes away completely. It has been very cold here for several weeks and I think this has been going on for a bit but I had been writing it off as backing into snow in the un-plowed section of my driveway, but today I sat a little longer and realized it was happening while I was stopped. Any ideas.