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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

Caliper getting hot???

  • Thread starter Thread starter nicks199050gt
  • Start date Start date Jun 23, 2008
N

nicks199050gt

Member
Dec 31, 2004
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NH
Jun 23, 2008
#1
  • Jun 23, 2008
  • #1
I just recently did a 5 lug swap on my 90 gt Im using the pbr calipers and I noticed the driver side gets very hot. It dosent pull to that side so I dont think its locked up What else can it be?
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
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129
Jun 23, 2008
#2
  • Jun 23, 2008
  • #2
Sticky caliiper slide pins or a sticky piston are two places to look.
 
N

nicks199050gt

Member
Dec 31, 2004
67
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NH
Jun 23, 2008
#3
  • Jun 23, 2008
  • #3
How do I tell if there sticking?
 
L

lang williams

New Member
Jun 11, 2003
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cleveland, oh
Jun 23, 2008
#4
  • Jun 23, 2008
  • #4
I'm no brake guy but I'd jack it up...turn the wheel by hand....apply the brakes a few times an try turning it again to see if it drags.
 

SVT32VDOHC

waiting for the next hack atta
Founding Member
Nov 22, 2001
3,501
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119
Motor City
Jun 24, 2008
#5
  • Jun 24, 2008
  • #5
The PBR calipers stop great, but they have their share of problems. The small 12mm bolts that hold the caliper to the slide pin is the culprit. Those slide pins lock up in those brackets and hang the calipers up. This girl that comes in and works for us has a 99GT and the wheels were FILTHY. Both caliper brackets were junk because they were hanging up. The pads and rotors were junk. She had no idea the brakes were shot.

Cliffnotes: Check the caliper slide pins.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,164
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Massachusetts
Jun 24, 2008
#6
  • Jun 24, 2008
  • #6
WHat they said. If it's getting hot, it's dragging..most likely from the slide pins.


SN95 REAR calipers are notorious for them. You get 1 tear in the boot and water gets in and they seize. I already had to repace one of the brackets on my '03 because the pins seized in the brackets.
 
N

nicks199050gt

Member
Dec 31, 2004
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NH
Jul 3, 2008
#7
  • Jul 3, 2008
  • #7
So the brackets would need to be replaced or the slide pins? or is it all one unit?
 
N

nicks199050gt

Member
Dec 31, 2004
67
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NH
Jul 5, 2008
#8
  • Jul 5, 2008
  • #8
???
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,164
17,860
224
Massachusetts
Jul 5, 2008
#9
  • Jul 5, 2008
  • #9
If you can't get the pins out then you gotta replace the brackets.

If you can take the pins out, you can clean them up, clear out the bore then slide into and replace the boots (since they most likely have a tear). If you can reinsert the pins and the move freely then you can reuse it.

A new bracket from ford might cost more than these calipers are worth. I bought a PAIR of those PBR's off Ebay for $20. They are becoming dirt cheap.
 
N

nicks199050gt

Member
Dec 31, 2004
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NH
Jul 5, 2008
#10
  • Jul 5, 2008
  • #10
ok Thanks
 
N

nicks199050gt

Member
Dec 31, 2004
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NH
Jul 18, 2008
#11
  • Jul 18, 2008
  • #11
So I had the pins and the calipers checked and they said the seem fine, he said it could be the rubber brake line, he said it could be swollen inside and not allowing the fluid to go back to the booster. What do you guys think? If i step on the brake with my hands off the wheel it pulls to the oppisite side
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
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129
Jul 18, 2008
#12
  • Jul 18, 2008
  • #12
I've experienced what you're talking about, but never with new brake lines (you installed new soft lines with the PBR's, right?).
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,164
17,860
224
Massachusetts
Jul 18, 2008
#13
  • Jul 18, 2008
  • #13
Take the brake line off, stick it in a glass and pump the pedal. Fluid should flow like easy.

Take the caliper off and attempt to press the pistons in BY HAND. You should be able to push them in. If they are very tough, the piston bore could be pitted and seizing up.
 
N

nicks199050gt

Member
Dec 31, 2004
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NH
Jul 18, 2008
#14
  • Jul 18, 2008
  • #14
No the brake lines are not new I got them off of the car the spindles came off of
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
33
129
Jul 18, 2008
#15
  • Jul 18, 2008
  • #15
There are a couple of issues with the brake lines. One is that they often act up only when hot. The other is that they will often allow fluid to flow away from the MC decently (because it's under pressure) but the swelling doesnt allow all of the fluid to return. This keeps the caliper partially loaded.
 
N

nicks199050gt

Member
Dec 31, 2004
67
0
6
NH
Jul 18, 2008
#16
  • Jul 18, 2008
  • #16
well i drove it 5 min to my buddies shop and by the time I got there the rotor was 260 degrees the other side was like 130 and that was within 5or6 minutes
 
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