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Author Topic:   my brake warning light came on
gingerbreadman
Journeyman

Posts: 6
From: kamloops b.c. canada
Registered: Apr 2002

posted 04-03-2002 11:07 PM     Click Here to See the Profile for gingerbreadman   Click Here to Email gingerbreadman     Edit/Delete Message   Reply w/Quote
when i bought my car i pluged in the plug on the distribution block and my brake light in the dash came on....

well i traked it down to a bad master cylender.. i replaced it.......i bench bled the master cylander and installed it.. now when i was bleeding my brakes i might have drained my front tank (rear wheels)...........MAYBE........the light went off when i finished and brakes seemed fine.....

but anyways today i thought it might be a good idea to bleed my rear brakes incase i sucked in some air from the master cylander install.. well i did and i didnt get any air so i got back in my car and now my brake warning light is on.......

Is it possible for me to have drained the tank and the light not come on but when i went to bleed the brakes weeks later the light came on?

Do i need to take off my master and re bench bleed it? I guess if in fact i did drain that tank than only bench bleeding will fix it right??????

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V8 Thumper
Gearhead

Posts: 643
From: Orange, Ca. United States of America
Registered: Dec 2001

posted 04-04-2002 07:45 AM     Click Here to See the Profile for V8 Thumper   Click Here to Email V8 Thumper     Edit/Delete Message   Reply w/Quote
Do you have a firm pedal feel and full brake function? The pedal will sink to the floor if there's air in the system. Is is vac assisted (power brakes)?? Check for vaccum leaks as well.

No leaks at the calipers/wheel cylinders, right?

I suppose it could be a bad sender also. If the car stops hard, I wouldn't worry about it

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Ryan Wilke
Gearhead

Posts: 613
From: Stanton, Michigan
Registered: Oct 2000

posted 04-04-2002 08:07 AM     Click Here to See the Profile for Ryan Wilke   Click Here to Email Ryan Wilke     Edit/Delete Message   Reply w/Quote
GBM:
I believe that the light is activited by a sensor in the distribution block. What you need to do is have a friend watch the light while you bleed the right front just a bit...the light should go out. If you let too much fluid out, then the sensor will go past center, the light will come back on and you'll then need to go back to the right rear and bleed off alittle there. Same thing will occur, if you bleed off too much at the rear, the light will go off then back on. So you have to do it "just right". Be sure to keep the master brake cylinder full during all of this ajusting....

Good Luck! Ryan

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cpmaverick
Moderator

Posts: 1264
From: Auburn, AL.
Registered: Jan 2000

posted 04-04-2002 08:32 AM     Click Here to See the Profile for cpmaverick   Click Here to Email cpmaverick     Edit/Delete Message   Reply w/Quote
Yep, you have to bleed the fronts to shut the light off.

------------------
-Charlie Ping
1970 Maverick Grabber
13[email protected] with AC and overdrive.
http://www.maverickgrabber.com

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