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**octaneman** · 06-26-2009, 08:59 PM

Hi BUDFAN8

Did you bleed the master cylinder before you put it on ? The master MUST be bled properly in order to build up pressure. There are 2 ways to bleed the master: 1) On the bench with adapters attached to a vice. 2) On the car with adapters attached while pumping pedal. Once the master is bled and you are certain there is no air in it, then you must bleed all 4 wheels in sequence starting from the farthest wheel to the closest: Right Rear, Left Rear, Right Front, Left Front. Make sure that the master does not empty when you bleed the wheels ( 2 or 3 pumps and check level) or else you will do it all over again. On some abs systems the engine has to be running in order to bleed the system.

06-26-2009, 08:59 PM	#2 (permalink)
octaneman Mentor Home Support, Gearhead Automotive Center Join Date: May 2009 Posts: 549 OS: WINXP	Re: 92 explorer brake issues Hi BUDFAN8 Did you bleed the master cylinder before you put it on ? The master MUST be bled properly in order to build up pressure. There are 2 ways to bleed the master: 1) On the bench with adapters attached to a vice. 2) On the car with adapters attached while pumping pedal. Once the master is bled and you are certain there is no air in it, then you must bleed all 4 wheels in sequence starting from the farthest wheel to the closest: Right Rear, Left Rear, Right Front, Left Front. Make sure that the master does not empty when you bleed the wheels ( 2 or 3 pumps and check level) or else you will do it all over again. On some abs systems the engine has to be running in order to bleed the system. Last edited by octaneman; 06-26-2009 at 09:11 PM.