2002 X Type 3.0 Brake Problem
#1
2002 X Type 3.0 Brake Problem
I am a new member but have been reading threads from here for years and they have helped me solve many problems, So thanks for that. Hope I am getting this in the right place.
The problem I have now is that on my 2002 X Type, the passenger rear wheel brake line failed and I lost all of the brake fluid. I have replaced the line refilled the reservoir and tried bleeding the system the old style way. Pump pedal, hold release bleeder valve but the car is only stopping with right front and left rear. I then tried gravity bleeding, same out come. My last try was with a vacuum bleed and still the same out come. I understand from my reading that it uses the left front and right rear on one half of the system and the right front and left rear on the other half of the system. I have bleed a pint of brake fluid through the system and can not make the left front and right rear help stop the car. The brake pedal drops when I open the bleeders on the right front and left rear as is normal in my experience in the past with bleeding brakes but it does not when opening the right rear and left front. Any help would be greatly appreciated. Sorry for the long thread I just wanted everybody to know what I have tried so far.
The problem I have now is that on my 2002 X Type, the passenger rear wheel brake line failed and I lost all of the brake fluid. I have replaced the line refilled the reservoir and tried bleeding the system the old style way. Pump pedal, hold release bleeder valve but the car is only stopping with right front and left rear. I then tried gravity bleeding, same out come. My last try was with a vacuum bleed and still the same out come. I understand from my reading that it uses the left front and right rear on one half of the system and the right front and left rear on the other half of the system. I have bleed a pint of brake fluid through the system and can not make the left front and right rear help stop the car. The brake pedal drops when I open the bleeders on the right front and left rear as is normal in my experience in the past with bleeding brakes but it does not when opening the right rear and left front. Any help would be greatly appreciated. Sorry for the long thread I just wanted everybody to know what I have tried so far.
#4
SLow, this is what I would check. I would start with connecting a hose to the right rear caliper bleeder and get the hose to go above the caliper and then below (I find some clear tygon tubing about 9/32" ID works good for this and then you can use masking tape to hold it to the top of the wheel well). I then put the end of the hose in a glass jar (or other suitable catch container).
At this point, ensure the brake fluid reservoir is full and put the brake say 10 times. Did you loose a lot of fluid out of the brake fluid reservoir? If yes, you simply need to add more fluid to get the system full again. If no, then it is possible that damage has been done to the ABS unit and it is now not opening up to allow fluid to the right rear.
If the right rear is not getting any fluid out (or very little), I would first try disconnecting the battery to reset all the computers in the car. While I am not aware of any failure mode with the ABS like this, I can see where the car may be programmed to not apply any fluid to a wheel or two if it senses that there has been a line failure. Removing the battery should clear any code/error to this effect. I would then try re-bleeding all 4 wheels and note if you get normal flow out of the 2 wheels in question now.
If the battery trick doesn't fix things, then you are looking most likely at a bad ABS unit as I understand the system.
At this point, ensure the brake fluid reservoir is full and put the brake say 10 times. Did you loose a lot of fluid out of the brake fluid reservoir? If yes, you simply need to add more fluid to get the system full again. If no, then it is possible that damage has been done to the ABS unit and it is now not opening up to allow fluid to the right rear.
If the right rear is not getting any fluid out (or very little), I would first try disconnecting the battery to reset all the computers in the car. While I am not aware of any failure mode with the ABS like this, I can see where the car may be programmed to not apply any fluid to a wheel or two if it senses that there has been a line failure. Removing the battery should clear any code/error to this effect. I would then try re-bleeding all 4 wheels and note if you get normal flow out of the 2 wheels in question now.
If the battery trick doesn't fix things, then you are looking most likely at a bad ABS unit as I understand the system.
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Slow (04-06-2016)
#8
Slow, because you are not getting a lot of fluid out of the bleeder, this is telling me that there is some sort of obstruction leading to the caliper in question. If the mated front wheel is doing the same, then this would be confirming that the problem is at the ABS unit or potentially in the brake booster. But, I would be looking more at the ABS unit myself.
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Slow (04-06-2016)
#9
Slow , If you have air trapped in the brake master cylinder ( and I suspect you have ) bleeding at the caliper won't get the air out .
You need to to bleed the master cylinder first .
As you bleed the master you will note that the fluid level in the reservoir will start to drop , after you have done this you can then bleed the brakes as per normal .
I believe you would have had no fault with the booster or ABS unit prior to the fluid loss .
Good luck with that
You need to to bleed the master cylinder first .
As you bleed the master you will note that the fluid level in the reservoir will start to drop , after you have done this you can then bleed the brakes as per normal .
I believe you would have had no fault with the booster or ABS unit prior to the fluid loss .
Good luck with that
Last edited by mastersid; 04-07-2016 at 07:22 PM.
The following users liked this post:
Slow (04-07-2016)
#11
#13
The following 2 users liked this post by mastersid:
Ardelvejag (05-05-2020),
Slow (04-10-2016)
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