Question-------------------------
Followup To
Question -
I have a 1998 landrover discovery I recently had the brakes replaced the rover drove ok for about a month and after that when ever I put on the brakes I get a jerking like the brakes are shuttering I don't feel anything in the stearing wheel I took it back to the shop that did the work and they replaced the rotters but this didn't correct the problem when I go to stop it shakes so bad I'm concerned about driving it also the dash light that reads anti lock brakes is on thanks for your time john stillian
Answer -
Hi John,
You may want to have your brake lines bled to make sure no air is in the system. Start from the rear calipers and when finished, bleed the front calipers. Flush the lines with new brake fluid. You have to be sure there is no air in the lines.
Next, there could be a problem with one of your brake calipers. If a caliper is seizing, it can cause damage to your rotor and prematurely wear down the brake pads. The only way to tell is to examine each of your calipers and see if it is functioning correctly.
Look for worn brake pads. Which rotors were changed? If all were changed then it makes it harder to diagnose a brake problem. IF rear or front rotors where changed, then start your examination there. Normally, front rotors will wear down first...most of the weight is there and 'nose' diving occurs there too.
The ABS light on the dash could be an indicator or ABS problems...but then again...maybe not. The LR ABS system is plagued with problems, so its hard to tell. It could be the ABS modulator that is failing. This is an expensive part $2500...so I hope I am wrong!
Best of luck,
JohnMc
JohnMc,
thanks so much for your informative response. I have a follow-up question. If the modulator is going out, will that cause the brakes to grab?
thanks.
JohnC
AnswerHi John,
its rare that the ABS modulator would be causing your brakes to bind or grab...but I guess it could be possible. I would suspect the calipers or air in the line before the ABS modulator. The problems I am aware of with the ABS modulator have to do with false readings. In some cases, the wheel sensors have failed but most often its the modulator.
I'd examine the calipers first then bleed the entire brake line system. Its the cheapest attempt to fix the problem. If you swap out the modulator ($2500 thank you!), you'll never know if the fix was just due to air in the lines.
Go the least expensive route first. If there is no air in you lines, the calipers move freely, then inspect your master cylinder. The modulator is your last step.
Best of luck,
JohnMc
