new to forum with sunfire brake problems

longbow

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any help would be appreciated!!!!!!!!!!!! i replaced the brakes on my 1999 sunfire 2.2l and for some reason my rear drivers side and my front passenger brakes are not recieving any fluid we tried to bleed the air out but we didnt get any fluid to them we tried for a good period of time and just cant figure it out my rear passenger and front drivers are the only 2 grabbing i basically have no brakes at all
 
What do you mean by replaced the brakes, do you mean just the pads and shoes? Is the car equipped with ABS and if so did you follow the steps for ABS bleeding?
 
yes just the pads and shoes and yes my father helped bleed them properly.......... it bled properly for the rear passenger side but not the rear drivers side
 
yes i am aware it is diagonal braking and yes i did answer about the abs we did i repeat WE DID bleed properly
 
did you check if you have collapsed brake hoses?
 
yup no leaks or collapsed hoses could it be the master cylinder or something different
 
it is possible it is the master cylinder. During bleeding if you let the pedal go to the floor the seals on the master cylinder piston could have been damaged by going over a corroded spot in the bore of the master. Remove the line on the master and seal it with a bolt. If the pedal goes down when you step on the master the seals are shot.
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if you have the ABS unit in this car, there is a very large possibility that if your fluid level dropped below minimal allowable levels that there was air introduced into the system. The early GM brake systems with the huge ABS brain require a different bleeding sequence than anything I've ever had to deal with before or since. there are 4 or 5 bleeder screws on the abs unit. if you go through the bolt test and the pedal holds pressure, the next step I would take is going to your Haynes or Chilton's manual and following the ABS bleeding sequence, and re-bleed the entire system. if you can get access to a power bleeder that would be even better as you would pressurize the whole system and simply open valves in order to bleed correctly. Good luck.
 
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