Brakes have failed, mech cant help April 17, 2013, 01:56:00 PM So my brakes pedal is completely stiff. I wont press down at all. Both of my brakes light are on in the dash. What could be wrong? Boost or master or something else? Quote Selected
Brakes have failed, mech cant help Reply #1 – April 17, 2013, 08:08:10 PM my mech said that it isnt a standard vacuum brake system, it has more electronics because of ABS and he doesn't have the machines to check why the 2 brake lights were on in the dash. He said that new ones are pricey... bad day for me... Quote Selected
Brakes have failed, mech cant help Reply #2 – April 17, 2013, 09:00:11 PM Ok so your booster assembly is shot or has an electrical issue. Better start checking the circuit. Sounds like you have a wiring problem. Most likely the power relay. Time to get out the test light. The system is electric. You have no power assist. The system is DOWN. If the unit is shot better convert it. Or i have a working unit in a car i am converting. Or i am sure someone has a good used unit. But better start troubleshooting!!MOST LIKELY THE RELAY. Or possibly the ignition switch!!!Pump relay or fuse link S. Check this first !!!:hick: Quote Selected
Brakes have failed, mech cant help Reply #3 – April 17, 2013, 09:16:44 PM I dont know anything about the wiring. Where is the power relay, pump relay and fuse link? I had a bad windshield leak on the driver side, it wouldnt surprise me if that caused this problem. Quote Selected
Brakes have failed, mech cant help Reply #4 – April 18, 2013, 07:11:28 AM Not real familiar with the setup, but the Relays should be in the fold down tray in the trunk, behind the rear seat, and next to the ABS Computer. If it ends up being worse case scenario, and you need another ABS unit, I will let my 88 TC's piece go for cheap. It still works perfectly, I just don't need it anymore as I am converting over to Vac-Assist. Quote Selected
Brakes have failed, mech cant help Reply #5 – April 18, 2013, 07:26:08 AM http://www.turbotbird.com/techinfo/TEVES%20II%20ELECTRO-HYDRAULIC%20BRAKING%20SYSTEM%2087-88%20TCs.htmGet to reading. The last section applies to your situation. Quote Selected
Brakes have failed, mech cant help Reply #6 – April 18, 2013, 07:34:04 AM I have the whole vacuum assist setup for the swap if you're interested, just throwing it out there. Quote Selected
Brakes have failed, mech cant help Reply #7 – April 18, 2013, 11:46:50 AM Thank you all for the help. Is a vacuum setup just as good? Quote Selected
Brakes have failed, mech cant help Reply #8 – April 18, 2013, 11:51:36 AM Chuck W. That helped me out alot. One question. I dont understand this line, " Use a heavy gauge jumper wire to jumper the T/Y and GY/R wires in the socket. The pump motor should run."I am using jumpers cables to start just the plastic relay box? Quote Selected
Brakes have failed, mech cant help Reply #9 – April 18, 2013, 12:15:16 PM A heavy gauge wire for that jumper would be something like a #10 wire... #12 and maybe #14 would likely be OK, but no smaller...Probably 9 times out of 10 the pump motor relay is at fault... Quote Selected
Brakes have failed, mech cant help Reply #10 – April 18, 2013, 12:16:07 PM No... Something like a 12ga or 10ga wire. Jumper wire does not mean jumper cables. Quote Selected
Brakes have failed, mech cant help Reply #11 – April 18, 2013, 01:33:21 PM I've done the swap on both of my 88 TC's and had no problems. Ditch the abs its nothing but trouble Quote Selected
Brakes have failed, mech cant help Reply #12 – April 18, 2013, 03:26:10 PM How hard is the swap? I have no specialty tools. Quote Selected
Brakes have failed, mech cant help Reply #13 – April 18, 2013, 03:38:05 PM Why don't you just see what the issue is with the ABS before you think about swapping systems? Quote Selected
Brakes have failed, mech cant help Reply #14 – April 18, 2013, 04:10:29 PM I agree with Chuck, could be as simple as a relay or accumulator ball. Quote Selected
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