Troubleshooting brakes

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#Surround the master cylinder with some clean rags just in case of any accidental spillage of brake fluid.
 
#Surround the master cylinder with some clean rags just in case of any accidental spillage of brake fluid.
 
#On most cars, trucks, etc.  
 
#On most cars, trucks, etc.  
#Now your helper, who is in the driver's seat, presses the brake pedal. If the pedal still goes to the floor, it is time to attempt to bleed the master cylinder. You can use a master cylinder bench bleed kit which will install into the line ports and have an attached hose that goes back into the reservoir. Push and release the pedal until there are no air bubbles.  
+
#Now your helper, who is in the driver's seat, presses the brake pedal. If the pedal still goes to the floor, it is time to attempt to bleed the master cylinder. You can use a master cylinder bench bleed kit which will install into the line ports and have an attached hose that goes back into the reservoir. Push and release the pedal until there are no air bubbles. Reconnect lines, check pedal.
  
#If you still have no firmness on the brake pedal then it is time to bleed the rest of the system. Have your helper push the pedal half way to the floor and open the bleeder on the wheel furthest from the master, close bleeder, release pedal and repeat until there is just fluid comming out, no air. Go to the next furthest wheel and repeat until all wheels are done. It is important that the pedal not be released while the bleeder is open or you will suck air back into the system. Once you have completed this procedure you should have a good pedal.
+
#If you still have no firmness on the brake pedal then it is time to bleed the rest of the system. Have your helper push the pedal half way to the floor and open the bleeder on the wheel furthest from the master, close bleeder, release pedal and repeat until there is just fluid coming out, no air. Go to the next furthest wheel and repeat until all wheels are done. It is important that the pedal not be released while the bleeder is open or you will suck air back into the system. Once you have completed this procedure you should have a good pedal.
  
  

Revision as of 14:40, 27 August 2010

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