Grinding/scroping noise from rear end?
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Grinding/scroping noise from rear end?
(Title should be "Grinding/scraping" not "Grinding/scroping" but I can't see how to edit the thread title)
After a week of sitting in the driveway while I was away on vacation, my 2005 F-150 (4WD crew cab) made an awful noise when I first drove it.
The noise only occurred when the truck was moving and it seemed to be correlated with the rate at which the wheels were turning (i.e., putting the truck in Park or Neutral and revving the engine didn't reproduce the sound). Applying the brakes did not change or cause the sound either.
At first, the noise sounded like maybe I was dragging some piece of metal on the pavement, like an exhaust pipe. It also sounded like when gravel and sand get caught in a hubcap. I stopped and parked within a 100 yards of the sound starting, saw nothing dragging -- saw nothing usual at all.
I started off on the road to the dealership -- a couple of miles away -- and within 3-4 blocks the sound had pretty much gone away or diminished enough that it's hard to distinguish from normal tire hum.
I still think I hear a faint -- very faint -- grating sound as I drive. I can only hear it when driving along side a wall or something that reflects the sound back to me. I'm not 100% sure the sound I'm hearing is out of the ordinary. I might just be hypersensitive following the really loud sounds I heard at first.
This truck has about 60,000 miles on it, and I use it to tow a 19' fiberglass boat on a single axle trailer, so the rear wheels sometimes get dipped when I'm launching or retrieving the boat.
We're leaving (with the boat) on a 1600 mile round trip drive to Canada in about a week, and I'm not sure if this is something I should worry about or not. I thought about taking it in, but the current noise is so faint, I don't know if they'd even hear anything out of the ordinary.
Any ideas? Does this sound like something normal after a week of driving or should I be making an appointment at the dealership? Any ideas would be very welcome!
Thanks!
After a week of sitting in the driveway while I was away on vacation, my 2005 F-150 (4WD crew cab) made an awful noise when I first drove it.
The noise only occurred when the truck was moving and it seemed to be correlated with the rate at which the wheels were turning (i.e., putting the truck in Park or Neutral and revving the engine didn't reproduce the sound). Applying the brakes did not change or cause the sound either.
At first, the noise sounded like maybe I was dragging some piece of metal on the pavement, like an exhaust pipe. It also sounded like when gravel and sand get caught in a hubcap. I stopped and parked within a 100 yards of the sound starting, saw nothing dragging -- saw nothing usual at all.
I started off on the road to the dealership -- a couple of miles away -- and within 3-4 blocks the sound had pretty much gone away or diminished enough that it's hard to distinguish from normal tire hum.
I still think I hear a faint -- very faint -- grating sound as I drive. I can only hear it when driving along side a wall or something that reflects the sound back to me. I'm not 100% sure the sound I'm hearing is out of the ordinary. I might just be hypersensitive following the really loud sounds I heard at first.
This truck has about 60,000 miles on it, and I use it to tow a 19' fiberglass boat on a single axle trailer, so the rear wheels sometimes get dipped when I'm launching or retrieving the boat.
We're leaving (with the boat) on a 1600 mile round trip drive to Canada in about a week, and I'm not sure if this is something I should worry about or not. I thought about taking it in, but the current noise is so faint, I don't know if they'd even hear anything out of the ordinary.
Any ideas? Does this sound like something normal after a week of driving or should I be making an appointment at the dealership? Any ideas would be very welcome!
Thanks!
Thread Starter
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Joined: Aug 2005
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I hope you're right. I've had rusty rotors in the past from the truck sitting, but this sounded nothing like that. Louder, more metallic, clankier... if I hadn't looked, I would have sworn I was dragging a muffler...
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Joined: Sep 2012
Posts: 112
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From: St. Charles, MO
Probably a stuck caliper. Do you have an infrared thermometer? If so, after driving for a while, stop and measure the temp of all 4 rotors. The fronts will be hotter than the rear, that's normal. But the drivers side and passenger side should be the same temp. If one is much hotter than the other, then that caliper is probably stuck.
