Flush abs module
Thread Starter
Heel & Toe
Joined: Mar 2024
Posts: 21
Likes: 1
Flush abs module
Hi, removed the calippers for painting. Put them on again, and started bleeding rr and lr. When I started on rf the brake pedal was hard, as if there were no air. I took the brakehose of the calipper, same result. Tried ignition on, and to start the car. Still the same on both front calippers.
Do I need a diagnostic tool to be able to bleed brake fluid through the abs module and all the way through the calippers?
Do I need a diagnostic tool to be able to bleed brake fluid through the abs module and all the way through the calippers?
Thread Starter
Heel & Toe
Joined: Mar 2024
Posts: 21
Likes: 1
Thread Starter
Heel & Toe
Joined: Mar 2024
Posts: 21
Likes: 1
Thread Starter
Heel & Toe
Joined: Mar 2024
Posts: 21
Likes: 1
Manage to bleed the front calippers with suction. But still have the problem.
Rear brakes are working, front is not. Could it be the main brake cylinder? But I guess it is the abs module that control pressure front/rear?
Rear brakes are working, front is not. Could it be the main brake cylinder? But I guess it is the abs module that control pressure front/rear?
Thread Starter
Heel & Toe
Joined: Mar 2024
Posts: 21
Likes: 1
Managed to bleed the front calippers with suction. But still have the problem.
Rear brakes are working, front is not. Could it be the main brake cylinder? But I guess it is the abs module that control pressure front/rear?
Rear brakes are working, front is not. Could it be the main brake cylinder? But I guess it is the abs module that control pressure front/rear?
Drifting
Joined: Apr 2004
Posts: 1,340
Likes: 463
From: Raleigh/Cary NC
If you didn't empty the reservoir by bleeding or leaking out the lines while doing the work, I don't really see how air could have gotten in the system.
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Intermediate
Joined: Dec 2020
Posts: 27
Likes: 7
From: Niagara Falls
After doing some research, I discovered that air got trapped in the ABS unit and cause my braking issue. Since I didn't have (at that time) a scan tool with the auto-bleed feature, I ended applying the brake hard on a gravel road to activate the ABS pump several times and that release the air from the ABS unit. I then drove home and re-bleed the brake again. This returned my braking system back to normal. I have since purchased a scan tool with the auto-bleed feature and plan to bleed the brake at the end of the driving season.
Advanced
Joined: Feb 2018
Posts: 83
Likes: 18
From: Calabash, North Carolina
I had the same problem, bleed the brakes one day because the fluid was old and made matters worse. Braking was basically non-existent.
After doing some research, I discovered that air got trapped in the ABS unit and cause my braking issue. Since I didn't have (at that time) a scan tool with the auto-bleed feature, I ended applying the brake hard on a gravel road to activate the ABS pump several times and that release the air from the ABS unit. I then drove home and re-bleed the brake again. This returned my braking system back to normal. I have since purchased a scan tool with the auto-bleed feature and plan to bleed the brake at the end of the driving season.
After doing some research, I discovered that air got trapped in the ABS unit and cause my braking issue. Since I didn't have (at that time) a scan tool with the auto-bleed feature, I ended applying the brake hard on a gravel road to activate the ABS pump several times and that release the air from the ABS unit. I then drove home and re-bleed the brake again. This returned my braking system back to normal. I have since purchased a scan tool with the auto-bleed feature and plan to bleed the brake at the end of the driving season.