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Discussion Starter · #1 ·
Dear guys,


My 2005 RIO is currently having ABS problem. At first, ABS light turned on and when i sent my carfor inspection,the mechanic cleaned the senso and told me that maybe some dirt on the sensor.



A week after that, while breaking there was some "grawling" sound and the ABS light turned on. Then i resend it to the service centre and they told that it was ABS sound meaning that ABS has been activated. They checked the sensor, then changed the fuseand then reset it.

Nothing wrong with the oil, pad etc. Everything in good condition.



Then last 2 days, the same things happened. Some "grawling " sound as same as breaking without braking pad - metal to metal. I can feel it on the brake pedal.



Any advice? which part or system that i need to rectify?
 

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Discussion Starter · #3 ·
Its juddering. As same as breaking without break pad. You can hear metal to metal sound alike.
 

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Sounds like the ABS is kicking in which would explain the
juddering.

Take the car on to a quiet road, drive till you reach about 30 MPH and slam the
anchors on, best do this with nobody else in the car as is not pleasant.

If the car skids then the ABS is faulty, if the car stops with a couple of
squeaks from the tyres
but not excessive and it does it in a controlled manor then the ABS is working.

In the case that the ABS does not work then the ABS computer needs looking at,
it is not part of the main ECU in most cars however I am not 100% sure about
the KIA system.

If however the ABS is working then the wheel ABS sensors would be a good
starting point, could just need a good clean or may need replacing.
 

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I once had the ABS light on when I started the engine once.

Like rmullen57694 said, performing an emergency stop may actually clear the problem.
This is how I managed to get the ABS light off and the ABS system working again.

I wouldn't be surprised if the gas cannister slightly freezes on cold days hence the ABS light coming on.
 

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if you haven't already done so check the abs rings for a crack this will cause brakes to judder when applied and doesn't always light up abs warning light.
 

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Is your Rio the newer shape or the older one with the big boot? The models changed in 2005.
 
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