4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

brakes squealing help me!!!

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Old Oct 7, 2009 | 07:30 PM
  #1  
my first stang's Avatar
my first stang
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From: pennsylvania
Default brakes squealing help me!!!

just got my car 3 weeks ago and the brakes have been squealing ever since. all pads and rotors are new. i'm getting a metallic squeal at all speeds, brakes on, brakes off doesn't matter.

took all the wheels off today and cleaned all the rotors , put the wheels back on and still the sound is still there.

i found the passenger front side heat shield hanging by a thread and basically just yanked it off. the heatshield was not the problem. althouth it might have been rattling i could not hear it.

i am wondering what my next step should be? what about that grease they sell at the auto parts stores, the stop squealing grease. if i use that where do i apply it?

i am 100 percent sure this is a pad-or rotor issue, just not sure what process will correct it!

i had a thought that when i put the brakes on and then release them the pads are still contacting the rotor more than normal, but this sound is on all the time!
Old Oct 7, 2009 | 08:07 PM
  #2  
LynnBob Mustang's Avatar
LynnBob Mustang
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From: PA
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If you got metallic pads they will squeal to a degree when the brakes are applied, they shouldn't when released, so I don't know if this could be your problem.

Lynn
Old Oct 7, 2009 | 08:15 PM
  #3  
my first stang's Avatar
my first stang
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no they are squealing at all times regardless if the brakes are depressed or not, from zero mph to say 40 after that i can't hear anything.
Old Oct 7, 2009 | 08:34 PM
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JC316's Avatar
JC316
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You check the slide pins on the calipers? One of mine was frozen solid and it was causing a sound like that.
Old Oct 7, 2009 | 08:50 PM
  #5  
my first stang's Avatar
my first stang
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not yet. i think i'm going to yank everything off this weekend and lube the pins and apply some pad lube. i think at the dealer they just slapped everything together and didn't pay any attention to lubing anything. this car wasn't making this sound when i test drove it 4 times, oh well.

since i ripped the one heatshield off, how much do they cost? i need a new one of those and some rivets to put it back on.

Last edited by my first stang; Oct 7, 2009 at 08:57 PM.
Old Oct 8, 2009 | 01:16 AM
  #6  
masterofthepuppets99's Avatar
masterofthepuppets99
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From: Portland, Oregon
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the slide pins caused me major problems, not just with noise but one froze up with rust and melted my rotor down. so when you check those, make sure they arent rusty and lube them up good
Old Oct 8, 2009 | 02:12 AM
  #7  
JC316's Avatar
JC316
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Originally Posted by masterofthepuppets99
the slide pins caused me major problems, not just with noise but one froze up with rust and melted my rotor down. so when you check those, make sure they arent rusty and lube them up good
Yeah, same thing with me, had to change the rotor. I had to take a freaking blow torch to mine to break it loose. I used a giant pair of channel locks to spin it after I got the housing hot enough to catch the rubber boot on fire. Suckers can be a major pain in the ***.
Old Oct 8, 2009 | 07:53 AM
  #8  
Eagle2000GT's Avatar
Eagle2000GT
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From: Shelbyville, Indiana
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I had the brakes changed and the shop didn't lube the rear slide pins. One side froze up so bad I couldn't even free it with a hammer. I had to buy a new bracket for that side.
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