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10-07-2016
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#1 |
Join Date: Aug 2007
Location: Spring TX
Posts: 1,348
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Sticking Brakes
Not sure which one or how, but after a while driving around I will notice my brake pedal become rock hard up high and that my car won't roll back if stopped on a hill. I can drive and if it cools down it goes back to normal. I was thinking about taking it up to brake check, but figured I'd see what y'all think first.
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1994 #293 ZR-1 Stainless Works Long Tube Headers, B&B catback w/ X-Pipe, 18" Shelby Series One Wheels, SLP CAI. |
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10-07-2016
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#2 | |
   
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,155
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Re: Sticking Brakes
Quote:
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GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director  91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V |
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10-13-2016
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#3 |
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Join Date: Jun 2009
Location: I live at Devens, one run at a time
Posts: 455
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Re: Sticking Brakes
An infrared pyrometer or even a careful wave of the hand near each wheel might narrow your search 75%.
I agree about the booster comments but that doesn't cover the "won't roll back until cooled" part of the concern. I'd suspect a sticky rear caliper for that part of the problem. Luck, - Jeff
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[I]91 ZR-1 #1840, autocrossing in SCCA BSP. FIC S/S's DRM chip/Watson/Borla/lid/LW batt&headlights, springs, shocks, pads & lines, quick rack & Turn One, camber brace, 32/22mm sways, A/C halfway deleted 17x11 & 12 CCW's, 315 & 335 Hoosier A6s [/I] |
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12-14-2016
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#4 |
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Join Date: Aug 2007
Location: Spring TX
Posts: 1,348
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Re: Sticking Brakes
took the car out this morning to see whats what, under very hard braking I can activate the ABS light and it feels like it cycles once, then the car will slide into a cloud of smoke. I end up with both front tires in skid, based on the width of the tire marks and my 335's on the rear I can deduce the rear brakes are not locking up, just the fronts. Correct me if I'm wrong, but my car should not skid correct? What can lead to this condition?
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1994 #293 ZR-1 Stainless Works Long Tube Headers, B&B catback w/ X-Pipe, 18" Shelby Series One Wheels, SLP CAI. |
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12-14-2016
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#5 |
 Join Date: Aug 2015
Location: Magnolia, Texas
Posts: 884
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Re: Sticking Brakes
Happy to look at it with you.. I'm in Magnolia. Let me know how your schedule sets up tomorrow.. I'll PM you my cell number..
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12-14-2016
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#6 |
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Join Date: Aug 2007
Location: Spring TX
Posts: 1,348
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Re: Sticking Brakes
I dropped it off at a local shop, hope they can get it right.
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1994 #293 ZR-1 Stainless Works Long Tube Headers, B&B catback w/ X-Pipe, 18" Shelby Series One Wheels, SLP CAI. |
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12-14-2016
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#7 |
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Join Date: Aug 2015
Location: Magnolia, Texas
Posts: 884
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Re: Sticking Brakes
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12-14-2016
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#8 |
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Join Date: Aug 2007
Location: Spring TX
Posts: 1,348
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Re: Sticking Brakes
i can only handle so much frustration, gonna let the pros do a few things- brakes, suspension bushings, and an alternator.
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1994 #293 ZR-1 Stainless Works Long Tube Headers, B&B catback w/ X-Pipe, 18" Shelby Series One Wheels, SLP CAI. |
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12-15-2016
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#9 |
 
Join Date: Dec 2007
Location: NYC
Posts: 1,189
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Re: Sticking Brakes
Might be your brake master cylinder how often do you change your brake fluid? Does the car pull when you brake? My friends 95 Z would not roll when brakes would heat up we replaced MC all good.
Sent from my iPhone using ZR-1 Net Registry
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90 Chevy ZR1 LPE #2315 'SOLD' 90 Chevy ZR1 LPE #2774 'SOLD' 91 Chevy ZR1 Callaway aerobody 91 Chevy ZR1 #1512 91 Chevy ZR1 #951 95 Chevy ZR1 #338 'SOLD' 91 BMW 850i 94 BMW 850csi 95 BMW 850csi 94 Lotus Esprit S4 07 Benz CLS550 06 BMW M5 "SOLD" |
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12-15-2016
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#10 |
 Join Date: Apr 2004
Location: ATL. GA.
Posts: 2,170
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Re: Sticking Brakes
Have you ever changed your front brake lines? I had an issue the same as you it was the inside of the front lines had gotten soft and were collapsing not letting the fluid go back to the master cylinder. As soon as I released the pressure by opening the bleeder on the caliper it released.
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Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold |
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