Changing brake pads - Toyota FJ Cruiser Forum
 
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post #1 of 10 (permalink) Old 02-02-2018, 05:17 PM Thread Starter
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Changing brake pads

Hi guys, I've just changed my brake pads, and bled the brakes. Everything seems to be right, except if I pump the brake pedal to build up pressure, the ABS and traction Control lights come on and beep, but no pressure is lost, and no fault codes come up on the scan guage. Is the beeping normal, to tell you to stop pumping the brakes with ABS, or have I got to look for something else? Cheers
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post #2 of 10 (permalink) Old 02-02-2018, 05:51 PM
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Re: Changing brake pads

You didn't accidently unplug something when you were changing out the pads did you? I would just stick your eyeballs underneath the truck to see if anything is unplugged or hanging there

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post #3 of 10 (permalink) Old 02-02-2018, 05:56 PM
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Re: Changing brake pads

No need to bleed the brakes if all your changing is the pads.

Is the fluid at the right level?
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post #4 of 10 (permalink) Old 02-02-2018, 06:13 PM Thread Starter
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Thanks guys, I did check that I didn't unplug anything, nothing seems to be unplugged. The fluid level is good as I just bled the brakes to change the fluid
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post #5 of 10 (permalink) Old 02-02-2018, 06:33 PM
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Re: Changing brake pads

You're fine. I think the warning lights and beeper are a warning about bleeding off ABS pump reserved pressure.


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post #6 of 10 (permalink) Old 02-02-2018, 06:50 PM Thread Starter
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Thanks gearwrench, I was thinking something like that, as I have never just pumped the brakes before, I took it for a drive and it seems to be breaking fine. I have a squealing noise still, which is why I changed the pad in the first place (lucky cause they were pretty gone) but the noise is still there, should I be changing the rotors as well?

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post #7 of 10 (permalink) Old 02-02-2018, 07:00 PM
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Re: Changing brake pads

The squeal could be the rotors but it's unusual for it to begin immediately after a brake pad replacement. Did you clean and lube all contact areas of the pads and caliper? Also did you have any problems pushing the pistons back? The caliper pistons are notorious for sticking or gaulding up on these. Even if the were able to be forced they will cause the pads to be partially applied with no brake application causing extreme heat which will cause squealing.


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post #8 of 10 (permalink) Old 02-02-2018, 07:21 PM Thread Starter
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I just gave the rotors a wipe with a micro fibre cloth, I did have a lot of trouble with one of the rear pistons, which is where the sound is coming from. How would I check this and fix it, cause new rotors aren't cheap and if it's not the problem I don't see the point in changing them just yet
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post #9 of 10 (permalink) Old 02-02-2018, 07:31 PM
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Re: Changing brake pads

Start there. Take it out and drive it for a bit to build up some heat in the brakes then block the wheels, jack up the rear end and put the transmission in neutral and rotate both rear wheels and see if the suspect wheel has more drag, it should be very noticeable. Recheck your work also to make sure you simply didn't bend a backing plate/dust shield and have it rubbing on the rotor. As far as the rotors go if they're within specs you can always have them machined at a fraction of the cost of new ones.


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post #10 of 10 (permalink) Old 02-02-2018, 07:44 PM Thread Starter
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Thanks alot gearwrench, I'll try that. I don't think I bent anything cause it was making the noise before I changed the pads. The car is going to the mechanics soon as I'm heading up to cape York, I'm just trying to sort out what I can, so the bill will be cheaper. Thanks heaps for your advice
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