3/21/08 Ford Explorer XLT 4.0L V6 crankshaft pulley(CP) failure. Two weeks ago, it started with a slight chirp. Upon auditory inspection, it was obvious that it was coming from the location of one of the 7 serpentine belt pulleys. The belt was in good condition( no cracks/ no glazing) .I lubricated the 2 idler puller bearings, but that didn't help. After a week, the chirp turned into a continuous squeal. I applied belt conditioner ($4), but no help. At almost 2 weeks, the squealing was excessive. I purchased a new serpentine belt ($40) and anticipated a 15 minute change. Much to my dismay, when I started to route the belt underneath the CP, it was obvious that it was out of line with the cooling fan pulley that was directly above. A closer look, at the CP, revealed a critical failure between the outer pulley band and its rubber damper. Before I jumped to a conclusion, I checked the rotation of all the other pulleys to see if one somehow created excessive resistance that would cause this failure, but all were smooth. This vehicle only has 51000 miles on it, so it's obvious the manufacturing of this part was substandard. I've found 2 other owners who posted the same problem, but I imagine there are a lot more. I'll be contacting Ford to see how they're addressing this problem. See the other persons issue at the link below:
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3/21/08 Ford Explorer XLT 4.0L V6 crankshaft pulley(CP) failure. Two weeks ago, it started with a slight chirp. Upon auditory inspection, it was obvious that it was coming from the location of one of the 7 serpentine belt pulleys. The belt was in good condition( no cracks/ no glazing) .I lubricated the 2 idler puller bearings, but that didn't help. After a week, the chirp turned into a continuous squeal. I applied belt conditioner ($4), but no help. At almost 2 weeks, the squealing was excessive. I purchased a new serpentine belt ($40) and anticipated a 15 minute change. Much to my dismay, when I started to route the belt underneath the CP, it was obvious that it was out of line with the cooling fan pulley that was directly above. A closer look, at the CP, revealed a critical failure between the outer pulley band and its rubber damper. Before I jumped to a conclusion, I checked the rotation of all the other pulleys to see if one somehow created excessive resistance that would cause this failure, but all were smooth. This vehicle only has 51000 miles on it, so it's obvious the manufacturing of this part was substandard. I've found 2 other owners who posted the same problem, but I imagine there are a lot more. I'll be contacting Ford to see how they're addressing this problem. See the other persons issue at the link below:
http://www.cargurus.com/Cars/Discussion-t426_ds42008
As it stands now, I'm out $200 in parts and labor and still have a dead vehicle. I hope Ford will step up to the plate and make this an easy repair.
- Ray W., Kitty Hawk, NC, US