Question about 1997 Jeep Grand Cherokee

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I changed rotors and pads both front and rear,but when i step on brake there is thumping coming from brake pedal

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Do you have anti-lock brakes? if so, that could be it

Posted on Jan 16, 2013

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1 Answer

Why is the left front tire thumping and the brake pedal vibrating when I stop


ABS thinks you are skidding, and is applying the brakes on and off. Likely one of the ABS sensors is bad.

Apr 10, 2015 | 2002 Pontiac Grand Prix

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1999 plymouth breeze. step on brakes and the front brakes have a bad pulsing to them. previous owner hab brakes done rotars turned and pads replaced. any suggestions on how to address this problem


Symptom: Brake Pedal Pulsates Change When: Braking Change Where: Passenger Compartment Change -->lg-bl.jpg lg-br.jpg
Priority Action Part Type Cause 1 Inspect Brake Drum Specs Brake Drum Out of Adjustment, Out of Round, or Cracked. 2 Inspect Brake Drum Unevenly Worn or Out of Round Brake Drum(s). 3 Inspect Brake Rotor Incorrectly Machined Brake Rotor. 4 Inspect Wheel Bearing-Front Incorrectly Tightened or Installed Wheel Bearing. 5 Inspect Wheel Bearing-Rear Incorrectly Tightened or Installed Wheel Bearing. 6 Inspect Wheel Nut Loose, Worn, or Damaged Wheel Nut(s). 7 Inspect Rear Axle Bent Rear Axle.

Apr 13, 2013 | Plymouth Breeze Cars & Trucks

1 Answer

Did complete brake job on 1997 Ford Escort wagon no abs rear shoes, drums, lines, wheel cylinders,even changed the block at the rear were the lines go in & out of. Front lines hoses pads, caliplers...


is brake pedal hard to push down without engine running ,if so proceed to step two and thats to start engine and then push on brake and if pedal softer to push then the servo is working ,now if excessive pedal travel with engine running then remove the rear drums ,make sure the outside lip is cleaned out and then adjust the brake shoes manually till they rub when you turn the drum ,this will cure it but remember that it has to bed in of course new pads brake disks ,new shoes and drums it has to bed in so give it a chance .

Aug 24, 2011 | 1997 Ford Escort

1 Answer

My 2004 LeSabre shakes bad when I brake at around 50 mph. I changed the front brake pads. How difficult is it to change the front rotors?


Actually, changing the front rotors is not that difficult and they are relatively in-expensive. Anytime you change the pads on the front of your vehicle i would recommend having the rotors resurfaced or replaced. Especially if you are getting a brake pedal pulse when applying the brakes. Here is a step by step guide that will help you in removing your Front rotors.

Nov 03, 2010 | 2004 Buick LeSabre

1 Answer

Replace rear brake pads


Rear disc brake pads offer better performance and are not as affected by moisture like conventional brake shoe style brakes are. Rear disc brakes are similar to front disc brakes. The main difference is that rear disc brake systems must incorporate the emergency brake system. There are two methods widely used for the emergency brake with rear disc systems. The first system is a brake shoe inside the brake disc that is actuated by the emergency brake lever. The second is a screw style actuator inside the brake caliper. When activated the brake pads are forced into the brake disc and held tightly by the emergency brake lever.
READ COMPLETELY BEFORE STARTING
Step 1 - Identify Rear Disc Brake Components
rear_brake_pads.jpg Rear disc brake assembly includes; rear brake disc, rear brake pads, brake caliper mount and a caliper mounting screw. (Note: Some vehicles do not have the rotor mounting screw.)
Step 2 - Removing the Rear Brake Caliper Mount Bolts
rear_brake_pads_2.jpg To replace rear brake pads and rotors the rear brake caliper needs to be removed. First loosen the rear brake caliper mount bolts and remove them. Turn counter clockwise.
Step 3 - Lift Rear Brake Caliper from The Caliper Mount
rear_brake_pads_3.jpg After the caliper mount bolts have been removed, gently lift the brake caliper from the caliper mount. Inspect the caliper slides; they should move freely in the caliper mount. Remove rear brake pads and hardware.

Step 4 - Removing Caliper Mount Bolts
rear_brake_pads_4.jpg With a socket wrench or other appropriate removal tool, loosen the rear brake caliper mounting bolts. Remove bolts and lift the caliper mount and remove it from the vehicle. Remove the retaining screw from the disc mounting hole. Tap the rotor gently to release any rust that has accumulated between the rotor and bearing hub. Lift brake rotor from wheel hub holding on tightly, using both hands. You do not want to drop the rotor.

Step 5 - Removing Rear Brake Rotor
rear_brake_rotor.jpg Remove the retaining screw from the disc mounting hole, tap the rotor gently to release any rust that has accumulated between the rotor and bearing hub. Lift brake rotor from wheel hub, hold on using both hands and do not drop.

Step 6 - Install New Brake Rotor
rear_brake_rotor_2.jpg Check the new rotor against the old brake rotor to make sure they are the same size. Clean the mating surface on the wheel hub before the new brake rotor is installed. Reinstall rotor retainer screw.
Step 7 - Reset Rear Brake Caliper
rear_brakes_7.jpg Before new brake pads can be installed, the rear brake caliper must be reset. The reset tool winds the piston back into position so the new brake pads will fit. This style of brake caliper will not compress with a clamp tool; it can only be reset with the proper reset tool.
Step 8 - Reinstall Rear Caliper Mount and Install New Rear Brake Pads
rear_brake_rotor_3.jpg After the caliper has been reset, reinstall caliper mounting bolts and make sure the bolts are tight. Then match up the old brake pads to the new brake pads. They should be exactly the same except, of course; the old ones will be worn out. Check the new brake pads for proper fit and install any brake hardware that is required.
Step 9 - Remount Rear Brake Caliper
rear_brake_rotor_4.jpg Reinstall the brake caliper, align brake pad hardware and reinstall caliper mounting bolts. (Note: align the rear peg of the brake pad to the groove in the caliper piston.) Recheck and retighten all caliper and caliper mount bolts. Bleed brake system to relieve any air in the system. Before driving the vehicle, push the brake pedal down and let it up slowly. This operation forces the brake pads to travel to the brake rotors. DO NOT DRIVE VEHICLE until proper brake pedal operation resumes. When test driving vehicle listen for any unusual noises during the operation of the brakes.
WARNING! Always have the vehicle under inspection on level ground, in park with the emergency brake on. Always wear protective eyewear, gloves and necessary clothing before inspection or work begins. Never crank an engine over when anyone is near the battery or engine. Always have an operational fire extinguisher close by, obey all first aid instructions in the event of an injury. Never stand in front or behind a vehicle when cranked over or running. When engine is cranked over keep hands and clothing away from rotating components. Never move a car without proper brake pedal operation.

Jun 01, 2010 | 1995 Saab 900

1 Answer

How do you replace the front rotors on an 1999 Chevy express van 1500?


REMEMBER TO REPLACE THE PADS AS WELL, NO USED PADS ON NEW ROTORS.

Raise the vehicle and support on jack stands. Remove the wheels. Place the drip pan under the caliper. Loosen the 10 mm bleeder screw on the top of the caliper.
  • Step 2 Spread the brake pads apart with the common screwdriver. Place the screwdriver in the slot in the center of the caliper where the pads can be seen. With the nose of the screwdriver, pry between the rotor and the pad and pull the caliper outward toward you. The piston is being depressed into its housing as the caliper is pulled out. When the caliper comes to its limit outward, push the caliper back away from you and insert the screwdriver into the inside pad between the pad and the rotor. Once again pull the screwdriver toward you until the caliper piston is compressed into its bore.
  • Step 3 Tighten the 10 mm bleeder screw. Remove the caliper and support it where it is not hanging on the brake hose. Letting the caliper hang on the brake hose will damage the hose and cause brake failure.
  • Step 4 Remove the caliper support if it interferes with the removal of the rotor. Some vehicles don't require the removal of the support. Remove the rotor by pulling it off. If it is stuck, hit it with a hammer a few times between the studs.
  • Step 5 Install the caliper support and caliper in the reverse order they were taken off. Install the wheels and let the vehicle down. Check the brake fluid and fill as necessary to the proper level.
  • Step 6 Start the vehicle and pump the brakes very slowly until you have a high pedal. Remember that by expanding the calipers they have to re-adjust. You will not have any braking when you first start the car. Do not try to move the car until you have pumped the brake pedal sufficiently to feel a firm pedal.
    Rear-Wheel-Drive Vehicles
  • Step 1 Raise the vehicle and support on jack stands. Remove the wheels. Place the drip pan under the caliper. Loosen the 10 mm bleeder screw on the top of the caliper.
  • Step 2 Spread the brake pads apart with the common screwdriver. Place the screwdriver in the slot in the center of the caliper where the pads can be seen. With the nose of the screwdriver, pry between the rotor and the pad and pull the caliper outward toward you. The piston is being depressed into its housing as the caliper is pulled out. When the caliper comes to its limit outward, push the caliper back away from you and insert the screwdriver into the inside pad between the pad and the rotor. Once again, pull the screwdriver toward you until the caliper piston is compressed into its bore.
  • Step 3 Tighten the 10 mm bleeder screw. Remove the caliper and support it where it is not hanging on the brake hose. Letting the caliper hang on the brake hose will damage the hose and cause brake failure.
  • Step 4 Remove the bearing cap in the center of the rotor. Remove the cotter pin. Remove the large nut that retains the bearings and rotor. Wobble the rotor with your hands and the front bearing will come out.
  • Step 5 Reinstall the spindle nut with just a few threads. Grabbing the rotor with both hands, pull the rotor off with slight down pressure and with a quick ****. The spindle nut will grab the rear bearing and seal as you pull the rotor off and come out at the same time.
  • Step 6 Install the bearings into the new rotor. Grease the bearings first and install the rear large bearing then install the grease seal with the hammer. Install the rotor on the spindle and insert the front small bearing followed by the large washer and the retaining nut.
  • Step 7 Tighten the retaining nut just until there is no longer any freeplay then tighten an additional 90 degrees. Do not over tighten the retaining nut as it will not allow the bearings to expand and they will wear out rapidly. Install the cotter pin.
  • Step 8 Install the caliper support and caliper in the reverse order they were taken off. Install the wheels and let the vehicle down. Check the brake fluid and fill as necessary to the proper level.
  • Step 9 Start the vehicle and pump the brakes very slowly until you have a high pedal. Remember that by expanding the calipers they have to re-adjust. You will not have any braking when you first start the car. Do not try to move the car until you have pumped the brake pedal sufficiently to feel a firm pedal
  • Nov 11, 2009 | 1999 Chevrolet Silverado 1500

    1 Answer

    1997 Mercury Sable thumping in front end


    try to replace the wheel bearings.

    Jun 17, 2009 | 1997 Mercury Sable

    1 Answer

    HONDA ACCORD BRAKED


    What type of pads are you guys using? The number one complaint on cars is brake noise. One of the best solutions is to use quality ceramic pads. You may have cailpers sticking. If you have scorch marks on rotors or pulsation in pedal after resurfacing rotors, this is a good indication.

    Jul 05, 2008 | 2000 Honda Accord

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