B. loosening the bleeder screw on the accumulator with the ignition switch on d. Neither A nor B. d. Air in the hydraulic system. Answer A, zero brake pedal free travel, will cause a dragging brake condition, but not pulsation. An often-misdiagnosed cause of pull is a collapsed brake hose. c. Both A and B If you were to remove the line at the master cylinder and at the caliper, could you blow compressed air through it? Fear of the unknown causes anxiety. As a rule of thumb, shaking caused by a problem in the front end of the car will be felt in the steering wheel, while shaking in the rear will seem to affect the whole car. Question: A year and a half ago (from 78,000 to 88,000 miles), I had the whole brake system replaced, i.e., pad, rotor, and lines. An automobile has a weight of 2700 lb and is traveling forward at 4 ft/s when it crashes into the wall. A slight gap should be present between the pushrod and the master cylinder. Technician B Correct answer C-Brinelling is defined as indentations in the race caused by impact loads or vibrations. The other choices do not affect this concern. B only If you have this type of rear braking system, it is almost impossible to isolate the rear brakes. Failure of lateral runout or thickness variation checks a. a-drum brakes So im getting drag on my front brakes, both sides, after i drive it about 15-20 miles i jack up the front end the the wheels are real tight to spin by hand and you can hear the pads screeching against the rotor. Technician B believes there is an issue with the lateral runout of the rotor. B. The other situations wouldn't be caused by the lack of free play. A properly working booster will make it easier to hold the pedal and may even slightly depress the pedal by itself. While starting the engine with the brakes applied, the pedal does not go down slightly. Troubleshooting A Hard Brake Pedal | Classic Car Restoration Club Abnormal noise. Soft or Spongy Brake Pedal:Too much air in the system due to improper bleeding is usually the cause of this problem. The failing bearing allows the hub to move around, effectively pushing the brake pads back into the caliper as far as it can. When I bled the lines, the driver side brake fluid wouldn't come down. Which of the following is the proper procedure? DOT 5 Tech A says that quick take-up master cylinders use two additional pistons to move brake fluid faster. It's a vital component in your car; leave it to the pros. "Scratcher" and "sensor" are types of disc brake pad __________ indicators. This leads to excessive pedal travel. Answer: This means that you have a leak in the system and you most likely have air in the brake lines. A drum or rotor that has deep scores in it will cause the brakes to grab. As rotors age, they go through the heating and cooling process thousands of times, so it's inevitable for them to lose their shape or trueness. Hydro boost locking up breaks | Diesel Place b. Four-wheel alignment D. Noticeable brake pulsation. You wouldnt pack your own parachute on your first jump, would you? All the other answers could occur. Connect a hose to the caliper bleeder screw and insert the other end of the hose into a suitable container, open the bleeder screw, then use a C-clamp or pliers to slowly bottom the piston in the caliper Technician A says that all 3 channel ABS systems use only 3 wheel speed sensors.
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