Hi Anton It would help to know what vehicle you have.
are you sure its the hand brake light and not the brake fluid level light? It may be they are using the same light for both.
I am assuming the brake pedal goes to the floor if you don't pump it? This is really an open question without knowing the history or seeing your vehicle. Things that may create this fault,
brake pedal spongy or goes to floor (1) Leak of fluid in system, air in system, Incorrectly adjusted brakes, Flexible brake hoses porous brake pressure applied hoses expand. Leaky wheel cylinder or calliper. Badly worn brake pads or brake shoes. Leaky brake booster (brake servo) You need to methodically go through each of these possible faults and rule each one out. Good luck
SOURCE: bleed brakes but no pedal
Good! You bled the master cyl. before installation! The proper order of bleeding the lines, is to start with the wheel the greatest distance from the master cylinder. Then work your way to the next greatest distance, and last, the closest wheel. Make sure all air is removed from the lines before you proceed to the next wheel, and frequently check the master cyl. level, because, as I'm sure you know, if you **** in air at the master, you have to start all over again. I'm assuming you don't have a power bleeder, so with a helper do this with car running (make sure it's on safety stands and not going to fall on you!) Pump pedal 3 times, no need to mash the pedal into the floor, just 3 pumps 1/2 way down, hold 3rd pump at half way down level while bleeder is opened, when flow is about to stop at bleeder, close bleeder and repeat til no evidence of any air. Let me know how it goes and if you need any help.
Did you bench bleed the master cyl. before installing it? then when you installed the new master, did you bleed all 4 points? If yes, then check all for points for leaking caliper/s and leaking wheel cylinder/s. If the van has ABS, check the valve body for a bleeder screw and see if air bleeds out of it. If you've checked everything twice and did everything right then your new master cyl. may be defective.
SOURCE: brake pedal goes soft when engin is running on 1998 chevy 1500
If your rubber brake lines are from the factory those hoses can stretch when the brakes are applied. This same thing happened to me. I replaced the master cylinder, with little to no change. So then I changed the brake booster. And if you read the fine print if either the brake booster or the master cylinder go bad it can take the other with it. So if the rubber brake lines don't fix this I would look at replacing both the master cylinder and the brake booster at the same time. But if you would like to trouble shoot this issue a bit more you can clamp off just the rear brakes or just the front brakes or even clamp off 3 of 4 or if it might be a issue before it even hits the brakes them self you can clamp off all 4 of the brakes to see were the problem is. This is to test fewer components at once and to see if the issue is with the cylinders / calipers or hoses. This will help you determine the location of the problem faster and with out throwing parts at your truck and hopping it fixes the issue.
SOURCE: brake pedel pushes to the floor
pump the pedal about 10 times and see if it comes back up, u need to pump the caliper pistons out after a brake job.
148 views
Usually answered in minutes!
×