Sounds like power brake problems. First thing to check (engine idling) is the vacuum hose connection at the large donut-like cylinder behind the brake master cylinder--does it have good vacuum when the hose is removed. If not, chase the hose to the other end which should be plugged into intake manifold vacuum port--remove the hose and check for vacuum at the port. If ok, the hose may be plugged. If you tested good vacuum at the cylinder, then the power cylinder itself may need to be replaced. You may be able to replace the cylinder without disconnecting the brake lines--pull the master cylinder bolts, then remove the power cylinder bolts from the inside of the firewall. Hope this helps!
407 views
Usually answered in minutes!
×