Bad booster?
72 Dart with 340 power discs, new calipers bled etc. Pedal was getting hard before replacing pads etc. Pedal still hard and motor pulling about 14 inHg vac at idle so increase idle and vacuum and doesn't help. Sometimes when you push on pedal it increases idle speed so is there a vac leak in booster? I tried hooking a hand pump vacuum on the check valve port and I can not pull any vacuum at all. In the pic the motor is off and I also blocked the port to the manifold with my finger trying to pull hand vac on it also.
72 Dart with 340 power discs, new calipers bled etc. Pedal was getting hard before replacing pads etc. Pedal still hard and motor pulling about 14 inHg vac at idle so increase idle and vacuum and doesn't help. Sometimes when you push on pedal it increases idle speed so is there a vac leak in booster? I tried hooking a hand pump vacuum on the check valve port and I can not pull any vacuum at all. In the pic the motor is off and I also blocked the port to the manifold with my finger trying to pull hand vac on it also.
