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  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

Gt Brake Issue

  • Thread starter Thread starter derek s.
  • Start date Start date Nov 17, 2013
D

derek s.

New Member
Nov 17, 2013
1
0
2
Nov 17, 2013
#1
  • Nov 17, 2013
  • #1
my son hit a curb w/his 02 gt long story short after replacing the caliper and bleeding it,the piston will not move....i thought they sold me a bad caliper so i exchanged it for a nother one.....same problem again,i find it hard to believe i got 2 bad calipers,if i have good oil,no air,nothing binding,what am i missing?
 

madspeed

Colonel Mustard
Founding Member
Nov 29, 1999
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a van down by the river
Nov 18, 2013
#2
  • Nov 18, 2013
  • #2
Moved to tech
 

sneaky98gt

10 Year Member
Apr 23, 2008
2,387
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NC State University
Nov 19, 2013
#3
  • Nov 19, 2013
  • #3
When you say not moving, do you mean it is completely frozen in place? As in, even if you removed it from the car, you couldn't press it in or blow it out at all? Or is the fluid just not compressing the piston to apply braking force?

If it is the latter, have you bled the master cylinder? Do that first, and then bleed the caliper.

If it's the former, sounds like you may have gotten 2 bad calipers.
 

jetmech807

10 Year Member
Dec 1, 2011
1,195
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Crestview, FL
Nov 19, 2013
#4
  • Nov 19, 2013
  • #4
Possibly a little more damage like a hard line crushed?
 

flstang65

10 Year Member
Dec 6, 2007
1,484
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SE Georgia
Nov 19, 2013
#5
  • Nov 19, 2013
  • #5
I was thinking damaged brake line as well. Check the hard lines and whenever I replace a caliper, I like to change the rubber lines leading up to them as well. Sometimes the rubber lines can actually fray on the inside and the piece of frayed rubber acts as a flap or one way valve letting the fluid go one way but not the other.
 
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