1979 monte carlo
 

need help. Got a garage find '79 Monte Carlo with a 267 motor. After sitting for ten years I got her running farly well except for some loud lifters. 89,000 miles on a perfect body and interior. Problem no brake peddle. Replace master cylinder, pedal still goes right to the floor and isnt losing any fluid from the system. Love this car, gonna be a beauty. Any brake techs with a suggestion where to turn? i was thinking air in the lines but they dont even pump up. Thanks for your help

When you replaced the Master did you bleed all the brakes at each wheel. If not I would start there. Even if the doesn't pump up leave the bleeders open until fluid comes out...as alway be carful not to get fluid on the paint.

did you check the brake lines? perhaps bad wheel cylinders?

Did you bleed the master cylinder before installing it.They will air lock some times if there not bleed right