The mechanic is now telling me I need all of those parts replace again. Here is the list of possible causes: Service and parking brake adjustment Rear brake hardware Shoe lands or bosses GM clip in wheel cylinders Brake drum condition Brake shoe contamination Brake valving Friction material One safe way to test whether a braking problem is at the front or rear brakes is to drive at a low speed and: (7.1.2) *, All of the following can cause brake pedal pulsation, EXCEPT, All of the following can cause brake system dragging, EXCEPT. If you have this type of rear braking system, it is almost impossible to isolate the rear brakes. The anchor pin never has to take all of the braking force when the brakes are applied, so its strength does not matter. Correct answer D-Both technicians are wrong because the problem is in the power booster. You can pump the brakes before application to help offset this problem, but you need to get it fixed. a. The anchor pin never has to take all of the braking force when the brakes are applied, so its strength does not matter. Al+ClX2AlClX3\ce{Al + Cl2 -> AlCl3} Troubleshooting can seem like a mysterious black art only practiced by experienced,professional mechanics, when you don't know how certain systems in your car work. Regardless, I recommend having a thorough brake inspection by an experienced mechanic. All the other answers could occur. A vehicle is equipped with a vacuum brake booster. _____ Slows a vehicle by converting the vehicle's kinetic energy into electrical energy. d. Steering gear problem. You shouldn't waste your valuable time trying to rebuild it. Replace the brake linings A. B only The ABS light doesn't go off after the engine starts. This leads to excessive pedal travel. d. Neither A nor B. b. with the engine running The brakes can fail if your hydraulic system or master cylinder is leaking. If there is plenty of fluid in evidence, check if it is hot; repeated hard use, towing, descending a steep hill, or a dragging calipercan boil the fluid. Technician B says that the star wheel assembly should be lubricated on the floating end. If the brake drums are worn excessively they can cause vibrations that may be felt in the pedal. Regardless, I recommend having a thorough brake inspection by an experienced mechanic. Auto Mechanical Practices Test; ASE Test Guide; Auto Mechanic Flash Cards; 2023 Edition. B. A. pumping the brake pedal 10 times with the ignition switch on B only One way to test your rear drum brakes is to apply the parking brake slightly while driving, because the parking brake uses the drum brakes in the rear. Technician A believes it's a defective proportioning valve issue. Low Brake Pedal:This can occur if the rear drum brake shoe adjusters happen to be rusted or sticking. Lubricate the pads where the brake shoes ride on the backing plate of drum brakes. The steering wheel vibrates all the time and always veers to the left. b. This patch of uneven rotor surface is called a pad impression and will cause the brakes to pulsate. 2320, what is the phase relationship between c. Both A and B Who is right? A only Hydro boost locking up breaks | Diesel Place Sometimes, though not very often, the brakes won't work, and it sounds like it's grinding for one or two seconds. Brake dust is best removed from brake components on the vehicle by using: If a retracting tool is not available, which of the following can be used to retract the pistons in a caliper with non-integrated parking brakes? If you were to remove the line at the master cylinder and at the caliper, could you blow compressed air through it? You could try having a fine cut done to the brake shoe surface of the drums and lightly sand them after the cut, or replace the drums. Cause: Rear Wheel lockup or squatting has many causes. Consider a system consisting of both objects A and B.
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which of the following can cause brake system dragging