Just replaced Master cylinder in van, 1 1/2 weeks later brake petal down to floor, no pressure. back to garage, Master cylinder faulty, new one installed. 1 week later, same thing happend, no pressure. Back to the garage, they found no leak in Master Cylinder, Bleed the lines again. 1 week later again, same thing. back to garage, bleed brakes.
Well, 2 days later, same thing. HELP. The arage is at a loss. Has anyone else experienced the same thing? Any help would be appreciated.
Did your mechanic use a DRB III or equivalent scanner before performing the bleeding procedure after installing the master cylinder? This is a requirement by the manufacturer (Chrysler) when bleeding the brake system.
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need. goodluck!
- 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.
Your clutch fluid reservoir may need brake fluid-yes, it uses brake fluid as a hydraulic fluid. Check reservoir on the firewall. It will sit beside the brake master cylinder. The reservoir sits atop the clutch master cylinder. If it was dry, the clutch may need bleeding down at the slave cylinder on the transmission housing-where the clutch fork sticks out of the transaxle.. Open the bleed valve on the slave cylinder, and have someone slowly press clutch down. Keep bleeding until a steady stream of fluid comes out when clutch is pressed. Then close bleed valve, check clutch operation-pedal should have some pressure on it now.
its sounds like it could be a bad master cylinder with an internal leak.it could also be a problem with the abs hydraulic module that for some reason is bypassing brake fluid within the unit itself.these problems won`t neccessarily turn on the dash light or activate the abs light.
if it is the wheel cylinder that is leaking then it will have to be replaced and all the components cleaned with brake cleaner.depending how badly soaked the brake shoes are you may have to replace them also.you may have to heat the brake line that connects to the wheel cylinder,or even replace the line if it gets damaged.the bleed all the air out of the system,
If the fluid level is staying constant then it sounds like the brake master cylinder or the master cylinder booster. If the seals are bad on the master cylinder the piston just goes through the fluid. Many boosters use air pressure to assist in the braking proces and it could have a leak.
you need to lay on your back and follow the brake pedal up so far and you will see the brake switch attached to it,you will need to pull out a large hair pin clip,and wiggle the master cylinder rod and the switch off together,
When you fixed the brakes, did you take the lid off the master cylinder. I just wonder if you spilled out your brake fluid. The only reason the pedal should go to the floor is if the brake fluid is gone or the master cylinder is not working. Check the fuse. Check the brake fluid level. The pedal only goes to the floor if there is no back pressure in the lines between the master cylinder the lines to the brake pistion on the calipers. Please give me a good ratin and keep me informed.
ITS THE MASTER CYLINDER AGAIN.More than likely they are using a re manufactured master cylinders. Get a new one from MOPAR-(CHRYSLER) that will take care of your problem. Trust me I have had the same problem with a similar vehicle in the past in my shop. Good Luck, thank for using FIX YA
My 03 trailblazer does the same thing and the service dept. told me that it was normal for this model to do that, it has never failed to stop but if your sitting at a red light you can feel the peddle go down to almost the floor but it stops fine and it has done this since day 1 and they say thats normal on the trailblazer.