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Old 10-30-2018, 12:19 PM   #1
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ABS brakes driving me crazy

Hi all! This is my very first post here since I bought a Focus very recently. It is a 2000 1.6 estate that looks very nice that I bought very cheap since it needs some TLC. My first impressions being a Focus owner are that it is such a nice car. I am used to driving a bigger car so the Focus is so convenient when parking and overall I am very pleased with my purchase. Since I bought it I have replaced the timing belt since nobody knew when or if it had been replaced earlier, I replaced the power window mechanism on the driver's door and did some other minor adjustments. Now to what feels like a big issue to me: The ABS brakes. When I bought the car the yellow lights were on. I scanned the system and the error code told me something was wrong with the left front wheel. I erased the error code and started the car. The very second I raised the clutch pedal the light came on again. I replaced the ABS sensor. Things changed. Now I could move the car and accelerate to about 15 mph before the light came on. I replaced the wheel bearing. Nothing changed. I checked the new ABS sensor using a PC while driving the car. No speed. I hot-wired the right ABS sensor to the left side and checked the real time data and then I got a signal so I replaced the new sensor with an even newer sensor. Now the warning lights do not come on and no error codes are registered. BUT as soon as I am driving faster than 10-15 mph the ABS kicks in as soon as I touch the brake pedal. It is quite annoying to feel the pedal vibrate every time I want to slow down. Has anyone go any ideas of what my next step should be? A third sensor or a second bearing or something completely different. Any help or ideas would be highly appreciated.


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Old 10-31-2018, 12:48 PM   #2
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I think I solved it. Just in case someone else will experience this later on I'll write down what I did. I drove the car while being connected to the PC. All wheels showed the same speed but there were extremely short losses of signal from the left front wheel. I disconnected the ABS sensor and had a look down the hole where the sensor sits. I think I saw some tiny fragments that might be rests of the old sensor that I had to break to remove. Otherwise there might have been shavings from the old wheel bearing. I cleaned the hole and vacuumed it and put the sensor back and all of a sudden my Focus was working perfectly.
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Old 10-31-2018, 06:22 PM   #3
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Good boy.

The sensors are very picky and need to be very close to the signal maker and no metallic trash in there to fudge the reading up.
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Fix the driver first, then fixing the car becomes so much easier..........
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