I recently replaced master cylinder and also brake booster however when I apply brake, it (the brake pedal) still gets stuck, I have to pull it up by placing foot underneath it and pulling up. Could the brake mechanism simply need lubrication?It's a 72k5 blazerThanks in advance everyone!
yes...did you use stock replacements? you might want to pull the clip that connects the brake pedal to the pushrod.. unbolt the booster so it will slide forward... check that the brake pedal pivot pushing is not hanging up.let me see if i can spot a diagram of the brake pedal pivot ..i personally have used clutch return springs on way too many chevy and ford truck brake pedals... so there is just enough tension pulling the pedal upward against the stop..usually the spring in the master cylinder and the spring in the power brake booster i have hooked the spring to the steering column mounting bolts... or to a drilled washer.. so you have a nice place to hook the spring... the other end of the spring.. just make a nice loop... around the brake pedal arm..
this link will bring up a parts catalog page with a diagram very close to what you are going to be dealing with..http://www.gmpartswiki.com/getpage?pageid=22318one or the other of these springs should be available at most parts stores..Help/17 1/2 x 13/16 x 2 1/8 in. light duty clutch return springPart Number: 29002Alternate Part Number: 705-149-SHelp/17 1/2 x 3/4 x 3 3/16 in. heavy duty clutch return spring Part Number: 29003Alternate Part Number: 705-148-S