1970 Mustang

fparks · 10-07-2006, 02:43 PM

Brake Booster vacuum is sucking brake fluid into the intake. Does anyone know if this is a bad master cylinder?
Alternator light stays on, alternator is charging.

okiedragster · 10-07-2006, 07:55 PM

yea you have a bad master if it is pulling brake fluid in your booster, really dont know bout the alt. problem could be your voltage regulator..

bmxmon · 10-26-2006, 03:11 AM

I dont have a booster, but i thought that the MC was the same, which would mean that it couldnt get fluid through it??? Unless its leaking through the back of the MC i guess. http://auto.howstuffworks.com/power-brake1.htm Shows how they work. I had the same problem with my GEN light, check your voltage regulator. Check out my old thread on that! What does this electrical box do?

10-07-2006, 02:43 PM	#1 (permalink)
fparks Registered Member Join Date: Oct 2006 Location: Sauquoit, NY Posts: 1	1970 Mustang Brake Booster vacuum is sucking brake fluid into the intake. Does anyone know if this is a bad master cylinder? Alternator light stays on, alternator is charging.

10-07-2006, 07:55 PM	#2 (permalink)
okiedragster Drag Racer and Mach1 Addict Join Date: Jan 2006 Location: southern oklahoma Posts: 85	Re: 1970 Mustang yea you have a bad master if it is pulling brake fluid in your booster, really dont know bout the alt. problem could be your voltage regulator.. __________________ -FOR SALE- SUPER COMP DRAGSTER My 71 Mach 1

10-26-2006, 03:11 AM	#3 (permalink)
bmxmon Moderator Join Date: Mar 2004 Location: Minnesota Posts: 891	Re: 1970 Mustang I dont have a booster, but i thought that the MC was the same, which would mean that it couldnt get fluid through it??? Unless its leaking through the back of the MC i guess. http://auto.howstuffworks.com/power-brake1.htm Shows how they work. I had the same problem with my GEN light, check your voltage regulator. Check out my old thread on that! What does this electrical box do? __________________ Alex

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