brake pedal pressed further than usual
11-08-17, 08:46 AM
#3
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11-09-17, 02:34 PM
#8
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New brake pad and rotors installed, the auto shop guys said brake fluid is okay, he just fill up some into it, didn't pump out and fill in all new fluid into it. is that cost problem ? also my car running 65k Mile 09 IS350
11-09-17, 04:05 PM
#10
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There are only two ways to fit new pads, you either compress the pistons back in the bore and force the old stale fluid back to the MC or open the line and then press the pistons back in. The later of the two usually allowing air into the system.
Please have the brakes bled properly and flush all of the old fluid from the system. It does degrade as it picks up moisture and contamination over time.
11-09-17, 04:24 PM
#11
Lexus Master tech, I would bet that you have seized slide pin. Since you didn't say which model you have, if you have an IS250, it could be either front or rear. If you have a IS350, it should only be the rear due to different brake calipers.
If that doesn't fix it, could be leaking caliper, failed master cylinder, or air in the brake lines if you've had work done recently.
If that doesn't fix it, could be leaking caliper, failed master cylinder, or air in the brake lines if you've had work done recently.
11-09-17, 10:57 PM
#12
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How do you tell if there is air in the brake line? One of my brake tore. We replaced the line and just filled the brake fluid up. Is that considered a "flush". I noticed that my brake doesn't "bite" as hard compared to my gf's altima S...
11-10-17, 05:47 AM
#13
Well there's your problem right there. Once the brake line is damaged or disconnected air gets into the brake lines and hence your brake peddle becomes squishy and soft when you fully brake. No, replacing the line and topping of the brake fluid is not a flush. A flush is when you remove all the old fluid and air out of your brake lines. You need to bleed all of the brake lines to get all old fluid and the air out. And the brake aren't biting as hard due to the air in the lines and the old fluid. Could also be due to the type of brake pads being used.
Last edited by XSV; 11-10-17 at 05:51 AM.
11-10-17, 05:55 AM
#14
Driver School Candidate
So when the brake line is damaged, would that not drain out all of the fluid? Im not sure what brake pad is used but when i bleed the brake line out, would i just need to do the side that was replaced or both sides? Thanks.
11-10-17, 06:19 AM
#15
Possibly, but I don't think that happened because you would have had no braking capability at all and crashed your car. You will have to bleed the lines with new brake fluid anyway to get the air out. You need to bleed all four brake lines. You start from the caliper thats furthest from the brake master cylinder, which is the rear right, then the rear left, then the front right, then front left (this is how I've done it, other people will say otherwise). You will need DOT 3 brake fluid, some 1/4" clear tubing, and an empty plastic bottle (Gatorade, Powerade ect). Look up on youTube on how to do the rest of the steps. It's not hard to do, but time consuming.