Bleeding The Brake SystemBleeding
When any part of the hydraulic system has been disconnected for repair or replacement, air enters the lines causing spongy pedal action (because air can be compressed and brake fluid cannot). To correct this condition, it is necessary to bleed the hydraulic system to ensure all air is purged.
Always begin bleeding the brake system from the furthest wheel cylinder or caliper from the master cylinder; the right rear. NOTE: The right side of the vehicle is the passenger side. The sides of the vehicle are determined from the driver's perspective. This reference is taken from sitting in the driver's seat, facing forward.
Maintain a full reservoir during the bleeding operation. Never use brake fluid that has been drained from the hydraulic system, or from an open container, no matter how clean it is. Always use brake fluid from a new, sealed container. The front and rear reservoir will drain as the front or rear brakes are bled.
Park the vehicle on a level surface. Place the vehicle in PARK (automatic) or REVERSE (manual) with the engine OFF, and apply the parking brake. Chock the rear wheels to prevent vehicle movement.
NOTE: Wheel chocks may be purchased at your local auto parts store, or a block of wood cut into wedges may be used.
Loosen the lugnuts from all four wheels, but do not remove the lugnuts until the vehicle is raised and supported properly.
Use an approved jack and raise the vehicle high enough to place jack stands under all four corners of the vehicle. Place the jack stands under the frame or axles of the vehicle. Ensure that the front of the vehicle is raised higher than the rear.
Remove the wheels from the vehicle.
Clean all dirt from around the master cylinder fill cap. Remove the cap and fill the master cylinder with brake fluid until the level is within 1/4 in. (6mm) of the top edge of the reservoir.
Clean the bleeder screws at all four wheels. The bleeder screws are located on the back of the brake backing plate (drum brakes) and at the top of the brake calipers (disc brakes).
Attach a length of rubber hose over the bleeder screw and place the other end of the hose in a plastic jar.
Have an assistant place and hold pressure on the brake pedal.
Open the bleeder screw 1/2 - 3/4 turn. As the bleeder is opened, the brake pedal will travel to the floor. Have the assistant inform you when the pedal has bottomed out.
NOTE: Do not remove pressure from the brake pedal once it is bottomed out. No movement to the pedal should occur until the bleeder is closed and the assistant is made aware of the situation. Failure to do this will draw more air into the system.
Close the bleeder screw and tell your assistant remove their foot from the brake pedal. Continue this process to purge all air from the system.
When bubbles cease to appear at the end of the bleeder hose, tighten the bleeder screw and remove the hose.
After bleeding each wheel, check the master cylinder fluid level and add fluid accordingly.
Repeat the bleeding operation at the remaining three wheels, ending with the one closet to the master cylinder. The pattern is, RR, LR, RF, LF.
Fill the master cylinder reservoir to the proper level and install the reservoir cap.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
their is bleeding valves on the brake caliper remove tire or crawl under valve is 5/16 rench or 3/8 pump brake peddal and have someone else open valve and quickly close repeat till air is gone
Loosen bleeder screw connect one brake bleeder tool from autozone and other shops similar. Keep posing it untill all bibles and air comes out of the brake line. Remember to refill while bleeding.
There is a special tool required to bleed the brakes, it plugs into the ABS hydraulic control under the hood and holds the ABS valves open to remove the trapped air during bleeding, u will need to have the dealer bleed the brakes, they are most likely the only ones that will have this special too, but u can try an outside shop, I am sure Snap on tools makes this tool in the aftermarket tool catagory..
2 Ways 1 pressure bleed ,,thats with a pressure pump full of brake fluid and undo bleeding nipples one at a time OR the other way 1 person in car 1person filling tank with b/fluid while you get under car a open bleeding nipples 1 at a time starting at the L/H/F then when only fluid cones out lock it up and to R/H/F and then to rear ,,but when open pedal down ,put your finger over nipple so no air goes when pedal is let up and so on..
WHAT the hell are you talking about as you dont do any thing like taking off springs to bleed brakes as the bleeder is on the back of the cylinder and bleeding takes 2 minutes only
Ask for info befor you start playing it will save you days of work
×