Brake goes to the floor?

Tiny
HMAC300
  • EXPERT
You have air in system if you have abs which it probably is, rent a power brake bleeder and bleed system that way it can take up to three quarts. If still doing it a local professional will need to open valves on abs unit with a scanner to bleed it.
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Thursday, August 27th, 2020 AT 6:31 PM (Merged)
Tiny
CRAFTSMAN62
  • MEMBER
The permatex held long enough for a text short drive an that was it. It started leaking. So I found a self tapping bolt so I am good now.
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Thursday, August 27th, 2020 AT 6:31 PM (Merged)
Tiny
CRAFTSMAN62
  • MEMBER
I will get back on my brakes as soon as I can. I am carrying a jug of water an antifreeze mix just in case.
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Thursday, August 27th, 2020 AT 6:31 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
Not a problem. I'll be here.

Joe
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+1
Thursday, August 27th, 2020 AT 6:31 PM (Merged)
Tiny
CRAFTSMAN62
  • MEMBER
Thanks man for all your help I appreciate it.
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Thursday, August 27th, 2020 AT 6:31 PM (Merged)
Tiny
DOUG_JANOWSKI
  • MEMBER
  • 1994 CHEVROLET S-10
Brakes problem
1994 Chevy S-10 6 cyl Two Wheel Drive Automatic

I changed the master cylinder, bled the system, changed the front break lines and checked all four wheels for leaks. The peddle feels the same. It will not pump up (air in the line) it just creeps down all the way to the floor until the break light come on. Let go of the peddle, it recovers and you can preform the malfunction again.
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Thursday, August 27th, 2020 AT 6:31 PM (Merged)
Tiny
2CEXPT
  • MEMBER
If it has an antilock brake did you bleed it before bleeding the wheels
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Thursday, August 27th, 2020 AT 6:31 PM (Merged)
Tiny
DOUG_JANOWSKI
  • MEMBER
"If it has an antilock brake did you bleed it before bleeding the wheels"

Yes and yes to both. Do you know anything about a dump valve or bypass valve?
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Thursday, August 27th, 2020 AT 6:31 PM (Merged)
Tiny
DOUG_JANOWSKI
  • MEMBER
Well Pros time foe a bit of skooling. On this trucks antilock pump, there are two cylinders with pop off valves. If the pins are pushed all the way out the yhe unit is no good causing the peddle to go all the way to the floor. I have my truck fixed and no money to the pros. Have a nice day.
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Thursday, August 27th, 2020 AT 6:31 PM (Merged)
Tiny
R & D KOPP
  • MEMBER
  • 1992 CHEVROLET S-10
Brakes problem
1992 Chevy S-10 6 cyl Four Wheel Drive Automatic

I have a 1992 Chevy S10 Blazer 4x4. We just rebuilt the brakes system completely - complete front and rear including master cylinder and booster. We have bled the brakes but when putting the vehicle in drive and stepping on the brakes, the vehicle will spin the back tires and it accelerates slightly. We have come to the conclusion that it may be in the ABS and wondering if we can disconnect the ABS totally and replumb for regular brakes. Please let me know, Thank you.
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Thursday, August 27th, 2020 AT 6:31 PM (Merged)
Tiny
SERVICE WRITER
  • EXPERT
I don't know that it is an abs problem, that is I don't see why any acceleration is happening when the brake pedal is pressed. Was there a problem before you replaced the system? IF so what symptoms beforehand?

To answer the question, you can by-pass the abs modulator, but it would suck if the problem was still present and worse yet if you get in a situation that called for them.

I don't recommend bypassing and Know ABS brakes did save me and my wife from getting decapitated.
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Thursday, August 27th, 2020 AT 6:31 PM (Merged)
Tiny
DBCOOPER63
  • MEMBER
  • 1989 CHEVROLET S-10
Brakes problem
1989 Chevy S-10 4 cyl Two Wheel Drive Automatic 110k miles

After replacing rear brakes no fluid to them. ABS trouble code 4
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Thursday, August 27th, 2020 AT 6:32 PM (Merged)
Tiny
DOCFIXIT
  • EXPERT
Hi db
I knew you made it. Code 4 grounded anti-lock valve switch but can"t locat where it is I'd say near RAWL module has 4 wire connector. With Ohm meter measure between terminal C blue wire and valve body then between terminal C and D black wire. Either reading over 50,000 ohms replace valve. Do you have brakes pressure to rears?
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Thursday, August 27th, 2020 AT 6:32 PM (Merged)
Tiny
DBCOOPER63
  • MEMBER
The truck has a rear wheel abs not 4 wheel abs
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Thursday, August 27th, 2020 AT 6:32 PM (Merged)

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