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April 4th, 2018 11:56 PM #8861Ask lang po if meron ng nka experience ng problem ko sa aking VIOS 2013 1.5G AT , 40k km pa lng ang tinakbo.
Here is the problem: When you apply brake, may chatter like sound coming from brake pedal, na parang nanggagaling sa abs actuator pump. Its happening not everytime you press brakes but intermittent sya. Noong una lumabas yung ilaw ng abs and P/s, pero pag may ilaw yang 2, walang ingay yung brake. Pag di nka ilaw yung 2 ( abs at P/S) , doon lumalabas ang tunog when you press the pedal.
I checked all the 4 wheel brake pads, they are ok. Checked all the sensors visually, ok naman. I disabled the abs system by removing the fuse of abs, ok naman ang preno and di na lumalabas ang chatter like sound but of course nka ilaw ang abs, p/s at handbrake/fluid low level indicator ( dahil nga no fuse)..binalik ko yung fuse and continue to run, wala ng mga ilaw ( abs, p/s at handbrake) ngunit meron na namang intermittent chatter like sound pag nag brake ka. So i suspect its the ABS ACTUATOR...any info guys?
Sorry po, this is not a reply to the thread..
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April 5th, 2018 12:06 AM #8862
it could be a brake booster leak. it can show this error. does the brake pedal sink a little?
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April 5th, 2018 06:46 AM #8863Yes, the brake pedal sink a little. When the problem arise, parang may fraction of a second na walang kagat ang preno then will sink a little tapos kakagat na ang preno, pero may chatter like sound na successive.
May nabasa akong TSB ( toyota service bulletin) for Camry 2013-2014 na nagsasabi na may problem sa abs exactly what i am experiencing and they are saying na its because of defective brake booster . ( it may be camry sa ibang country and vios sa pinas )
SO how do we test the brake booster? the only way na nakikita ko is to test it with a new one. Any input?
Thanks sa info sir.
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April 5th, 2018 07:04 AM #8864
brake control module readout will tell you what the culprit is. either abs actuator or vacuum leak..
checking this might help before going deeper.
Symptoms of a Bad or Failing Vacuum Brake Booster Check Valve | YourMechanic Advice
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April 15th, 2018 09:49 PM #8865Hi everyone,
Just gonna ask what kind of coolant do you use? When I had my my pms they usually top it up, but am not sure what kind they put in. I’m not sure if its red or pink because of the plastic encasement. Thanks in advance!
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April 16th, 2018 09:35 AM #8866
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April 16th, 2018 12:39 PM #8867
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April 16th, 2018 02:29 PM #8868
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April 16th, 2018 05:38 PM #8869
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April 17th, 2018 04:54 PM #8870
there's this youtube article, about a 2000s altis, that had a high rpm on cold start (2000+ daw),...
high idle RPM at engine start