Asked in Jaguar XJ6
Why is the brake pedal soft on the first few pumps on an 88 Jaguar xj-6?
Asked in Honda Accord DX
What is a blown brake line?
Motor vehicle brakes are usually hydraulic, which means that the brake pedal is basically a pump. pushing the brake pedal pumps some brake fluid through pipes and hoses out to the brakes at the wheels, activating the brake pads. The pipes and hoses are also referred to as "lines", and they can spring leaks if they get too old, damged and worn.
Asked in Brake Pads and Rotors
Have a 1999 kia sportage 4x4 I replaced rear shoes and wheel cylinders and front rotors and pads and calipers and master cylinder bled system and the pedal pumps up and then when you let the pedal?
Asked in American Cars
Why does our 1997 k2500 have low brake pedal only when 350 motor is running?
Asked in Ford E-150 Van
What does ABS mean on a 1999 ford E150 XLT warning light?
It means that your Antilock Brake System is not working. The ABS system works when the system senses that the vehicle is going to go into a skid. While you hold your foot down on the brake pedal, the ABS system pumps the pedal to keep the vehicle straight while stopping. Chances are that you have a bad wheel sensor.
2001 impala you hear a eeerrrhhhmm sound as your brake pedal forces itself upwards for about 2 seconds that's when the message system displays service your traction then disables it?
the traction light comes on telling you there is a low traction condition, not that the system needs service. the anti-lock brake system is the noise you hear. it is a series of hydraulic pumps that is cycling the brake pressure on the locking wheel. that is also what you feel on the pedal. the system is working as it should.
Asked in Brakes and Tires, Chevy Silverado, Dodge Ram, Fiat
Why does the brake pedal seem very soft even though brakes work?
asuming the brakes are fine. what we have is servo assistance all cars have brake servo's these unit's aid the driver to operate the brakes because with out servo assistance you could not stop the car on your own. how ever if you must check your brakes turn the car off now pump the brake pedal after 3 or 4 maybe 5 pumps of the pedal it should become solid if it not then get them looked at. but lets say they are now with the pedal feeling solid hold the pedal down as hard as you can now start the car now as you start the car the pedal should go down pretty much all the way down this is the servo kicking in which is great but if the pedal does not go down the servo needs looking at. and this goes for all cars .
Where can I find information about brake vacuum pumps?
Your 1993 Jeep grand Cherokee was sitting in your driveway for 6 months Now the brake pedal pumps when you press on the brake and the vehicle feels like the brake is stuck any ideas?
Asked in Saturn L-Series
Brake Pedal goes to floor after changing brakes on 2003 Saturn L200 and bleeding brakes throughly What could be problem Car is mint too new to be master cylinder 30K miles?
After changing the brakes the first few times you press on the brake pedal it will go to the floor; that's because the calipers haven't been pushed back to position. Remember that you had to retract the calipers completely before you could put in the new brake pads. Sometimes it takes a few pumps before the calipers are back in position. Make certain that the brake fluid is all the way up, then bleed the brakes again, and watch that fluid level. If it goes low for just one pedal push then you'll suck air again and you'll have to start over. Just one bubble of air in the brakes will cause trouble.
How do you know if you need a master cylinder?
If you are sitting at a light with your foot on the brake and you feel the brake pedal slowly sink to the floor but it pumps back up and the brake reservoir stays full, you have a bad master cylinder. -OR, if the brake reservoir gradually lowers every day and you have to keep topping up the fluid. You check each wheel and they are all clean. -Then looking carefully at the master cylinder one day, you see the stains on the front of the booster - - -
Asked in Brake Fluid and Lubrication
How do you flush brake fluid?
You can do it but you'll need someone to help you bleed the brakes. First thing I'd do is make sure all the bleeder screws will open at the calipers. If so, you can proceed...if not, well..... Get a turkey baster or some other thing to suck out the old brake fluid from the master cylinder. After doing that, fill with fresh DOT 3 brake fluid. Have a helper sit in the drivers seat and start at the right rear caliper. Open the bleeder screw slightly and have your helper apply pressure to the brake pedal. Make sure your helper doesn't release the pedal with the bleeder screw open. Have him/her "hold" the pedal down until you've tightened the screw. Otherwise it will draw air into your brake system. Close the bleeder and tell your helper to release the pedal. (You'll want to collect the old brake fluid in some kind of container.) DON'T LET THE MASTER CYLINDER RUN DRY OF BRAKE FLUID! Occasionally check the brake fluid level and keep bleeding the right rear caliper till it pumps out clean, fresh fluid. Go to the left rear caliper...do the same. Then the right front then the left front. Again, Don't let the master cylinder run dry of brake fluid. After you are all done, get some brake cleaner and spray down all the brake fluid that might have gotten on the calipers, pads, wheels, etc. The key thing(s) is to flush out the old fluid, make sure the master cylinder stays full during the bleeding process, that your helper "holds" the pedal down until you've tightened the bleeder screw. Do this and you'll be fine. Good luck!
Asked in Auto Parts and Repairs
How do you find a hole in a brake line when no fluid is coming out. it does not have a slave cylinder and the master cylinder was just replaced.?
If there is no fluid coming from the brake line, there are two possibilities: 1. there is no damage in the brake line, merely air in the brake line. 2. The brake fluid may already be completely depleted. To find out, get some water with a bunch of dish soap in it, but try not to make a lot of suds. Pour the water over the whole brake line and watch the line while someone pumps the brake pedal. If bubbles form, then there's the hole. No bubbles? Air in the line or perhaps damage in the master or slave cylinder.
Asked in Cars & Vehicles
How can you fix the mistake of putting steering fluid where the brake fluid goes?
best bet is to take it to a shop unless you know how to work the brakes. you have to take the wheels off, take off the brake calipers (careful not to damage the pads or rotors) and then bleed the brake lines, which is a two person job. you can buy a brake bleeding kit from auto stores but no matter how you do it it will take a long time. one person has to watch the lines and bleed them while the other pumps the brake pedal. once all the bake fluid is out you will need to refill the brake fluid cannister and bleed all the air out of the lines (so they do not fail and cause a crash) which is pretty much the same process as before, one person bleeds, one person pumps. after that take ot for a test drive to make sure everything's ok. safest option is still to take it to a shop... best bet is to take it to a shop unless you know how to work the brakes. you have to take the wheels off, take off the brake calipers (careful not to damage the pads or rotors) and then bleed the brake lines, which is a two person job. you can buy a brake bleeding kit from auto stores but no matter how you do it it will take a long time. one person has to watch the lines and bleed them while the other pumps the brake pedal. once all the bake fluid is out you will need to refill the brake fluid cannister and bleed all the air out of the lines (so they do not fail and cause a crash) which is pretty much the same process as before, one person bleeds, one person pumps. after that take ot for a test drive to make sure everything's ok. safest option is still to take it to a shop...
1977 Corvette brake?
if your brake pedal is constantly getting spongy and you have to bleed the calipers constantly the original calipers had a crappy design where the 4 piston calipers would rust internally and pit where they would suck in air and cause low btake pedal and car would not stop for sh==t. reman calipers are avail. cheap now they are made with stainless steel internals. dont just fix the one that pumps air out do it once and right. when you bleed them you start the furthest wheel from the master cyl so do r/rear first l/rear next r/ frpnt 3rd l/ front last
Asked in Ford Tempo, Ford F-150
Why won't my 1986 ford f150 6c start without having the gas pedal all the way down even after pumping the pedal?
Asked in Mazda, Chevy S-10, Dodge Ram, GMC Yukon
How do you reset the ABS light on a 1999 Mazda 626?
To reset the abs light the fault that brought it on in the first place needs to be repaired, once this has been done you need to output the codes again, this is done by grounding the TBS terminal in the diagnostic box. once the codes have been out putted you need to pump the brake pedal as fast as possible, i think it was 10 pumps within 10 seconds
Asked in Chevy Beretta
How do you install brake master cylinder Chevy beretta 1993?
The 92-96 Beretta/Corsica brake master cylinder is best removed with the ABS pumps and reservoir still attached. First, disconnect the 4 brake lines going to the top of the unit using a flare wrench. Now remove the 2 bolts securing the brake master cylinder to the brake booster. The whole assembly will come right out. Easy!
When do you change brakes in a 2004 Kia Spectra?
To change front brakes remove the wheel , use a 17 m.m. wrench or socket and remove the 2 calliper bolts ( remember which is top and bottom, they are different) compress the piston in the caliper with channel locks or a piston compressor tool, remove pads and clips replace with new ones, assemble in reverse order and torque lug nuts. Important pump brake pedal and check fluid before driving car, pedal will be low for first 2 or 3 pumps then should come up.
2003 dodge neon brakes are hard when engine off but soft with engine on?
because the hydraulic system pumps are running when the engine is on (power brakes), assisting you in applying the brakes. if your car did not have a brake assist pump, the pedal would always be difficult to press. Actually, there is no "hydraulic system pump", but a vacuum assist device. It is that large, round, metal thing that the master brake cylinder is attached to. Obviously, it operates on the engine's vacuum while the engine is running. With the engine off, there is no vacuum, and therefore no assist. There is a big, rubber diaphragm inside it, which is operated on by the engine vacuum. Pushing down on the brake pedal opens up the vacuum. When you let up on the brake pedal, springs return it to the original position. Occasionally they develope small leaks in the diaphragm, and have to be replaced. I have done this once as a "shade-tree" mechanic, who was trained in the U.S. Air Force. It is not an easy job.