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The ABS light comes on about every time I drive the truck. Some times it will give me no fuss and just come on. Other times I will hit the brakes and the ABS will activate and the truck will not slow down. It’s terrifying when I am trying to stop for a light and it happens. It feels like when trying to stop on snow and your vehicle just kind of keeps sliding. Once the ABS light turns on though the truck will brake normally. I have been just dealing with it but with winter around the corner I feel like I should get this sorted out soon.
From what I have read seen it seems like it is the asanas sensors. Is there anyway I could test them to be 100% sure it’s the problem?
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Hey – I’m no expert but I just went through this same exact issue with my 07 F150. I had replaced the front rotors and pads, purchased from local Auto Zone store. I put up with it for about six weeks. In my case, when the ABS came on, it would eventually go off but at slow speeds, until it was off, it would pulsate the brakes. You can disconnect your sensor and see if problem persists to test. What I did is pull the ABS codes, using my ELM322 BT OBDII adapter and the Torque Pro for Android App. It told me it was the front driver’s side sensor. The problem showed up AFTER I changed brakes. Anyway, I took off my front wheels and measured the distance of the sensor to the ABS ring on the new rotors and sure enough the driver’s side sensor ring was at a different distance than the passenger rotor/ring. I exchanged the rotor at AZ and all was right with the world.
HTH
Yes, you’re correct, that might be the case. I know for instance, the local car parts shops can’t read ABS codes with their scanners. Also, apparently some of the ABS codes from some manufacturers can be read, others can’t, etc. For your reference, I purchased an ELM327 Blue tooth OBDII (paid roughly $20 for it on Amazon four years ago) device that let’s me use Android Apps on my Nexus7 and/or Android Phone. The app I used to read the ABS code is called Torque Pro, I think I paid $4,99 for it. Other apps I use for that ELM adapter, for free, include ELM327 Terminal, which came with the device and is pretty much useless, OBD Car Doctor (Free), OBD2 codes (which is really just a code cross reference as it implies), and ScanMaster, which is actually a decent app. Usually with a combination of those tools I can hone in on my problem.
HTH – Best of luck…
You will need a scan tool that will read wheel speed data and drive the truck at low speeds to see if any of the wheels are showing a different speed than the others. I suspect that one or more wheel speed sensors are dropping out suggesting to the ABS module that that wheel is skidding and allowing the ABS to activate.
It’s quite a common issue on those trucks. I usually replace the complete wheel bearing for the repair if it’s a front wheel but have also seen broken ABS wiring to cause the problem.I agree with wysetech, definitely check the wiring. I just got done fixing an ABS light issue that was intermittent, the wire on this specific SUV, goes near the battery from underneath the battery tray. Right next to the tray, was the power lead, and there was a big gash in the wire that was full of corrosion and poorly connected. I had to replace both wheel bearing hub assemblies due to one bearing being bad, so just replaced both with new abs wheel sensor wires as well. That was the first thing I did. It didn’t fix the issue, but the wire sure did.
I thought is should post an update. I replaced the front driver side sway bar end link. It has been broken for several months. Well now the ABS light is not coming on every time I drive the truck. I am still skeptical but the broken sway bar end link may have been causing the truck to do weird things while under braking and trigger the the ABS light. The light has not come ion for a week now.
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