Need help!
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4th Gear
Joined: May 2024
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Need help!
Need advice! I have a 2014 f150 platinum, today from a stop and making a left hand turn I heard what sounded like traction control or abs engaging. The traction control light flashed a few times, killed power and seemed to engage the front right brakes because the truck attempted to pull hard right. After a few seconds it stopped and the truck drove normally with no dash lights. I drove around the block trying to replicate it but couldn't. Later I was coming to the same turn and it did it again. This time I heard a a single popping sound ( kind of like something was stuck and popped loose), once again it lasted a few seconds and the truck drove normally after. From what I can tell it's coming from the front driver side tire area. I have no idea what could be causing this so any thoughts would be great. Thank you
Cross-Country
Joined: Dec 2023
Posts: 98
Likes: 30
From: Rochester Mn
check for any OBD codes stored in the memory and check those to help diagnosis.
Symptoms described seem to indicate that the signal from the sensor indicating rate of wheel rotation may be intermittent. The sensor uses magnetic field from a tone ring (like gear teeth) to measure the rate of wheel rotation. When the rate is mismatched, then braking is applied to maintain traction. The missing signal could be due to failing sensor, intermittent wire connection for power, ground, or signal wires, or sometimes can be associated with a failing wheel bearing.
With front wheel lifted off the ground, one can apply force to the wheel to check the bearing to assure that it has no play.
otherwise the sensor will be located behind the brakes and require the brake be removed to access it.
Symptoms described seem to indicate that the signal from the sensor indicating rate of wheel rotation may be intermittent. The sensor uses magnetic field from a tone ring (like gear teeth) to measure the rate of wheel rotation. When the rate is mismatched, then braking is applied to maintain traction. The missing signal could be due to failing sensor, intermittent wire connection for power, ground, or signal wires, or sometimes can be associated with a failing wheel bearing.
With front wheel lifted off the ground, one can apply force to the wheel to check the bearing to assure that it has no play.
otherwise the sensor will be located behind the brakes and require the brake be removed to access it.
Thread Starter
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4th Gear
Joined: May 2024
Posts: 4
Likes: 0
check for any OBD codes stored in the memory and check those to help diagnosis.
Symptoms described seem to indicate that the signal from the sensor indicating rate of wheel rotation may be intermittent. The sensor uses magnetic field from a tone ring (like gear teeth) to measure the rate of wheel rotation. When the rate is mismatched, then braking is applied to maintain traction. The missing signal could be due to failing sensor, intermittent wire connection for power, ground, or signal wires, or sometimes can be associated with a failing wheel bearing.
With front wheel lifted off the ground, one can apply force to the wheel to check the bearing to assure that it has no play.
otherwise the sensor will be located behind the brakes and require the brake be removed to access it.
Symptoms described seem to indicate that the signal from the sensor indicating rate of wheel rotation may be intermittent. The sensor uses magnetic field from a tone ring (like gear teeth) to measure the rate of wheel rotation. When the rate is mismatched, then braking is applied to maintain traction. The missing signal could be due to failing sensor, intermittent wire connection for power, ground, or signal wires, or sometimes can be associated with a failing wheel bearing.
With front wheel lifted off the ground, one can apply force to the wheel to check the bearing to assure that it has no play.
otherwise the sensor will be located behind the brakes and require the brake be removed to access it.
Last edited by JesseB14; May 2, 2024 at 11:14 AM.
Cross-Country
Joined: Dec 2023
Posts: 98
Likes: 30
From: Rochester Mn
“I asked in many other forums and no one has commented anything.”
Thank you for the comment, I’ve had similar experience on getting replies from forums… I’m not a mechanic, but enjoy figuring out how things work and fixing problems myself. It seems like the most likely cause to me and symptoms described were similar to last year’s problem on my 2002 GMC Sierra.
It’s pretty “hit and miss” on being able to identity cause of problems in newer vehicles due to increased amount of electronics and sensors. Many information requests end up with no final answers as feedback to the forum, so I and others greatly appreciate when results of the repair are shared to improve the knowledge base.
Thank you for the comment, I’ve had similar experience on getting replies from forums… I’m not a mechanic, but enjoy figuring out how things work and fixing problems myself. It seems like the most likely cause to me and symptoms described were similar to last year’s problem on my 2002 GMC Sierra.
It’s pretty “hit and miss” on being able to identity cause of problems in newer vehicles due to increased amount of electronics and sensors. Many information requests end up with no final answers as feedback to the forum, so I and others greatly appreciate when results of the repair are shared to improve the knowledge base.
Tuned
Joined: Dec 2012
Posts: 409
Likes: 105
I appreciate the advice, this is the newest vehicle I've ever owned and a first truck. So when this stuff happened I had no idea where to even start, not to mention the the sound reminds me of abs kind of fighting for traction while braking but not exactly that. I asked in many other forums and no one has commented anything
Get an obd-II adapter (there are many, I prefer OBD MX+ but there are cheaper ones)
Now, this is the thing. You may have a bad wheel sensor, but it only acts up intermittently. The computer WILL NOT likely set a code because it trusts the sensor.
You will have to monitor the wheel speed sensors as you come to a stop. Forscan will have this under the ABS computer. If one indicates zero when the others say 5, that is the bad one.
Also do a full front end check - a bad bearing could move the tone wheel out of position and cause a dropout. Forscan can monitor the speeds in the background while you drive, and when you get an event you can check the graphs.
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Joined: Apr 2004
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I appreciate the advice, this is the newest vehicle I've ever owned and a first truck. So when this stuff happened I had no idea where to even start, not to mention the the sound reminds me of abs kind of fighting for traction while braking but not exactly that. I asked in many other forums and no one has commented anything
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4th Gear
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4th Gear
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Get an obd-II adapter (there are many, I prefer OBD MX+ but there are cheaper ones)
Now, this is the thing. You may have a bad wheel sensor, but it only acts up intermittently. The computer WILL NOT likely set a code because it trusts the sensor.
You will have to monitor the wheel speed sensors as you come to a stop. Forscan will have this under the ABS computer. If one indicates zero when the others say 5, that is the bad one.
Also do a full front end check - a bad bearing could move the tone wheel out of position and cause a dropout. Forscan can monitor the speeds in the background while you drive, and when you get an event you can check the graphs.
Get an obd-II adapter (there are many, I prefer OBD MX+ but there are cheaper ones)
Now, this is the thing. You may have a bad wheel sensor, but it only acts up intermittently. The computer WILL NOT likely set a code because it trusts the sensor.
You will have to monitor the wheel speed sensors as you come to a stop. Forscan will have this under the ABS computer. If one indicates zero when the others say 5, that is the bad one.
Also do a full front end check - a bad bearing could move the tone wheel out of position and cause a dropout. Forscan can monitor the speeds in the background while you drive, and when you get an event you can check the graphs.
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