Changed the brake line and caliper bled the brakes and still getting no pressure
My car has 394000 miles.
My car has an automatic transmission.
Try checking the brake booster itself. Sometimes when there is a leak in the brake booster diaphragm, this can cause a drop in pressure or loss of all pressure depending on how bad the leak is. If you need help scoping out the problem, a certified technician from YourMechanic , can come to your car’s location to diagnose the brake system and advise you on a proper fix.
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