I've got a 2011 Sentra SR and I changed the brake pads and rotors on it over this last weekend. Afterwards it has a nasty screw-driver-on-concrete grinding noise when you drive the car now. I went back and tried resetting everything down there a couple nights ago (took off wheel, took off brake pads, took out the little mounts the pads sit on). I manually rotated the wheel to try to hear the grinding noise and after bending the dust shield (baffle, backing plate, there seems to be a lot of different names for it, but this is the part: https://www.nissanpartswebstore.com/...1151ZW80B.html
After putting everything back on the other night, it has gone from a constant grinding noise, to more of an oscillating grinding noise (like it only grinds at a certain wheel position). Could this mean the rotor isn't on correctly or something? The car brakes work perfectly (I replaced them in the first place because the car had a bad shudder when stopping hard).
I'm to the point where it feels like I need to just replace this part. I went down there and bent the part to try to get that noise to go away. It sounded like it was gone when I manually rotated the wheel on the driver side, the passenger side still had a slight grind and I decided it probably wouldn't be noticeable. After putting the wheels back on, the noise was still there and just oscillated instead of being constant. This picture shows how the front brakes are assembled: http://i.ebayimg.com/images/i/112405...-1/s-l1000.jpg
. It seems like if I were to replace this part, I'd have to remove the big nut in the middle of the rotor (heck, it's probably a 35-40mm nut, and then there is a cotter pin to keep that nut from slipping out accidentally).
I guess I have two questions...
1) Is this anything to worry about? It's awful embarrassing to drive around but if it's not gonna hurt anything, it's not THAT noticeable.
2) Is this something that'd be easiest to just contract out to a mechanic since he'd have all the tools already? I hate paying labor costs, but I think I hate having something obviously wrong with my car as well and I'd just shell out the money to fix it. (On an off note, I'm -never- buying a Nissan ever again with the sheer amount of issues I've had with this car in the year and a half I've owned it, that's a story for another day though)