Brake Replacement Shops vs.
Pedal Pressure slightly increases with consecutive pumps.
The dealer said I have to pay for a brake diagnostic before they can determine the issue, but if it is a issue under warranty, the diagnostic fee will be waived. If the hose is not at fault, suspect an engine mechanical problem such as leaky valves, worn rings, an intake manifold vacuum leak, improper cam timing, etc. Power Brake Booster test to determine if the Booster is beginning to fail. What does a test at less than half operating pressure supposed to measure?
When this happens, it will push against the caliper and either flex it significantly or if the caliper is of a floating kind, cause it to slide on the pins. Since I can hear the pressure bleeding off, and after a suggestion from a buddy, I changed the valve above the brake booster and I still have the bleed off. Mine whistled for a while from that location when I hit the brakes. Their point about a newer car being different is absolute bullshit. Replacing hoses is usually pretty easy and inexpensive, with two caveats. Please get back to us and tell what was done to rectify the situation. Ford Escape: Which One Should I Buy?
Do have teflon tape on when i released there should retain it drops, hissing brake when pedal released from under braking system.