Something sounds like it was mounted incorrectly or defective. Bad pad, rotor, spacer left out, etc. I'd get a good brake guy to look at it or try another dealer and have them find the problem.
uneven brake pad wear
I pulled the brake calipers to apply some Disc Brake Quiet to eliminate squeals. When I did, I noticed on the passenger side that the inside pad was worn unevenly. Thick at the top and decreasing to about 2/3rds that thickness at the bottom. Still within limits for brake pads, but noticeably uneven.
Some quick background: I have the brake fix with new rotors and pads. The truck has been to the shop after this fix because it was pulling to the right under mild braking. This pull went away after a few weeks (possibly due to uneven pad wear?). No other brake problems and the squeal even went away.
Some quick background: I have the brake fix with new rotors and pads. The truck has been to the shop after this fix because it was pulling to the right under mild braking. This pull went away after a few weeks (possibly due to uneven pad wear?). No other brake problems and the squeal even went away.
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There are at least things that can cause uneven pad wear:
A sticking or damaged piston in the caliper
Missing or improperly installed shims between pads and caliper
Caliper not sliding free on the mounting pins
I would go back to the dealer that did the brake work and have them check everything.
A sticking or damaged piston in the caliper
Missing or improperly installed shims between pads and caliper
Caliper not sliding free on the mounting pins
I would go back to the dealer that did the brake work and have them check everything.
my passenger side front rotor was completely gone b/c i think the brake pads worn out...a lot of rivets and bumps are on the rotor...i hate the scratching/screeching noise it makes now...the other driver side rotor looks fine...i'm going to bring in the Amrada to replace the rotors and brake pads
scr38 - thanks for the list. Scheduled to take it back to the dealer for some troubleshooting and repair. Between the uneven wear and the pull to the right, the lower piston on the passenger side must not be retracting like it should.
still working this problem...
Took the truck back to the dealership to assess the brakes. Their answer was that the brake wear was 'normal' and the the right front brakes on the Armada typically wear unevenly like this. Bull****.
I'm tearing down the brakes this weekend. I want to make sure there is enough material left for safe operation on the unevenly worn pad and look for signs of damaged, cracked, chipped pistons. I'm also trying to get to the bottom of this ridiculous squeel at every stop. The CRC Disc Brake Quiet did nothing.
I'll take some pics and post'em on Friday night or Saturday.
Took the truck back to the dealership to assess the brakes. Their answer was that the brake wear was 'normal' and the the right front brakes on the Armada typically wear unevenly like this. Bull****.
I'm tearing down the brakes this weekend. I want to make sure there is enough material left for safe operation on the unevenly worn pad and look for signs of damaged, cracked, chipped pistons. I'm also trying to get to the bottom of this ridiculous squeel at every stop. The CRC Disc Brake Quiet did nothing.
I'll take some pics and post'em on Friday night or Saturday.
Are you sure you have the final brake fix? Ours was also squealing (~17,000 miles, about 7000 on the new brakes), and they told us that an updated brake fix had been implemented in April 05, and we did not have it. Just got it back with the new rotors (see my other post in the Brakes section for the whole story, plus part numbers), and they are definitely different. Things are working well now, but we've only had it back for a week or so.Armadaof1 said:Took the truck back to the dealership to assess the brakes. Their answer was that the brake wear was 'normal' and the the right front brakes on the Armada typically wear unevenly like this. Bull****.
I'm tearing down the brakes this weekend. I want to make sure there is enough material left for safe operation on the unevenly worn pad and look for signs of damaged, cracked, chipped pistons. I'm also trying to get to the bottom of this ridiculous squeel at every stop. The CRC Disc Brake Quiet did nothing.
I'll take some pics and post'em on Friday night or Saturday.
Keith
1 - 7 of 7 Posts
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