squeaking brakes
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Junior User
Joined: Aug 2004
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squeaking brakes
Man these brakes are driving me nuts. 71F250/cs. dual piston calipers. I start out everythings ok, brakes cold. They start squeaking about the second or third stop sign (brakes warm) with just a touch of the pedal, if I mash down it goes away then returns as I let up. What am I missing? Put new rotors, calapers, bearings, pads everything new. I've pulled the pads, sanded them, no change. Did I leave something off???????? thanks,jim
Fleet Mechanic
Joined: Feb 2007
Posts: 1,326
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From: Middle TN
At the auto parts store you can buy a special tube of Anti-squeal gel that you coat the backs of the pads where they touch the piston or caliper. Put lots on,the more the better. This prevents the pads from vibrating. This works about 90% of the time.
Posting Guru
Joined: May 2005
Posts: 1,518
Likes: 3
From: Spokane, WA
4X4 Bart hit the nail on the head. Disc-brake anti-squeal on all metal parts that touch. Your semi-met pads are not the problem. Also make sure none off your anti-rattle clips are touching the rotor. Good luck.
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Senior User
Joined: Jul 2003
Posts: 290
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From: Las Vegas
BEARING GREASE ON THE ROTORS?!?!?
I thought you were making a joke when you first mentioned that.DO NOT put grease on your rotors,it will ruin your pads,maybe the rotors and cause all sorts of issues.
Gene
I thought you were making a joke when you first mentioned that.DO NOT put grease on your rotors,it will ruin your pads,maybe the rotors and cause all sorts of issues.
Gene
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Fleet Owner
Joined: Jun 1999
Posts: 24,552
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From: Creedmoor, North Carolina
Fellows, Yall got me scratching my head a bit, where did grease and or bearing grease come from? The material that I was referring to is not a lube, but a sound deadening material that has come with some brake sets that I have used.
John
John
Fleet Mechanic
Joined: Dec 2006
Posts: 1,338
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From: UPSTATE NY
the only place i ever put the lube or bearing grease at is on the pins that the pads slide along. those are the part that always makes the squeaking. every time i change the pads i sand those pins with 2000 grit or steel wool and then grease them.
Posting Guru
Joined: May 2005
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From: Spokane, WA
Permatex makes an actual silicone based disk brake lubricant available at most auto parts stores. We use it at work extensively and it works great. Apply to backing of pads and the pins, sliders, etc.
New User
Joined: Apr 2008
Posts: 17
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From: Joelton TN
I bought the 10 dollar can from CRC at Autozone, same basic thing, and I agree, it works better than the little packs they have at the counter, and once you buy a can, you're set for life. Not really, but a can will last for a very long time.
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