Currently the Explorer is having severe transmission slips, and I think both Oxygen Sensors are broken so it runs very poorly. And now when I poot my foot on the brake I push it all the way to floor very easily, and the brakes barely engage. Sometimes I will have to use the emergency brake to stop the vehicle from rear ending someone.
its either a leak or you may have air in your brake lines. air is compressable so when you put your foot down on the brake pedal it just compresses the air rather than putting that force on the brakes. Check your brake fluid level, fill it up and bleed your brake lines to get the air out, also look for leaks, most leaks happen by the wheels but could be anywhere from the brake booster to the brakes.
severe leak in a brake line or a wheel cylinder, or a caliber. If you are not loosing fluid, it could also be severe vacum leak on the lines that run the power booster. This vehicle is severely unsafe. Do not drive it under any circumstances. Have it towed to the shop, and take you wallet check book and credit cards with you, you will probably need all of them.
sounds to me like air in the lines the whole brake system is suposed to be a sealed system,. if yu'v ever been low on brake fluid, or loosened the fittings, or crimped, ruptured, or cracked a line, yu probably have a failed system PUMPING the pedel will give you results, but, wont FIX the problem. Eventually. [ SOONER than later !!], yur brake peddel will be useles all together, and you WONT have any at all Check yur system for leaks,. indication of oil inside the drums oil spot where you normally park. fresh oil slick in the engine compartment where the reservor is located around the master sylender and the slaves. Get some carb cleaner and warm the engine up and sprey it in the vaccume lines to afferm or diss the sensor problems. sprey the PVC valve as well., if cleaning out the vaccume lines, and injectors systems, and intake dont fix the rough running, then yu probably do have a sensor gone south on the rig. Be safe, not sorry!!
