[ReneS93]

Hi, I'm new to this forum and don't know much about cars, and I've had this problem for over 6 months and it's driving me nuts. Every time I turn my steering wheel the abs and traction lights come on along with the messages, they come off after like 10-15 min and then when I turn again it does it. Aside from that the big thin is when I turn and then rapidly or moderately accelerate I hear scraping noise and the car does not move, as well as it shakes from the front. I have to stop accelerating, and then slowly accelerate and once it starts going normally I can drive like nothing happened. It only does this when either I turn the steering wheel and moderately/fast accelerate or just fast accelerating from a full stop.

 

[sheila]

Might unplug both front abs sensors at the hubs and spray both plug ends with elec. contact cleaner then smear each plug end with dielectric grease and reconnect. You can do this without lifting the car by turning the wheels to access the plugs.

 

[ReneS93]

Might unplug both front abs sensors at the hubs and spray both plug ends with elec. contact cleaner then smear each plug end with dielectric grease and reconnect. You can do this without lifting the car by turning the wheels to access the plugs.

Would that eliminate both lights coming as well?

 

[Big Buford]

sheila's suggestion is easy and may fix your problem entirely. Try that first....if it doesn't work, then let us know....

 

[1954 Chevy]

I'm wandering about the scraping noise you mention. Have you had anyone who is a bit more mechanically inclined check your cars front brakes and wheel hubs? The wheel speed sensors are part of the wheel hub assembly, which is what the wheels are bolted to. When the ABS system is triggered, it makes kind of a buzzing vibrating noise. Is this what you are hearing, or is it more like metal on metal grating or scraping, as you mentioned? If the ABS sensor wiring plug cleaning and dielectric grease doesn't help, then the problem might be worn out hubs and/or brake pads & rotors. It sounds like you probably wouldn't be comfortable doing any of this work yourself, but maybe you have a friend or family member who could help you.

 

[1954 Chevy]

Oh, and about both warning lights. Traction control and ABS both depend on the wheel speed sensor signal to function.

 

[sheila]

^+1. Worse case scenarios after trying the easy "clean and lube" 1st, you may need to splice in replacement abs elec. pigtail(s) or replace a hub/brg. assy(s).

 

[deer20212]

Some of those symptoms sound like a cracked hollow sway bar.

 

[sonjaab]

I hAD the same symptoms with my 13.
Both ABS and Trac lights on.
Replaced both front wheel hub/bearing assembles
Prob. solved.
I had noted the RF wheel hub/bearing was vibrating and grinding
while driving.
90k miles on car.

 

[hatzie]

THIS ^^^
Hub bearings would be my first guess too.
The grinding is likely bad bearings and complaints from the ABS computer after turning are the tone ring inside the hub/bearing assembly getting out of alignment with the pickup from the hub wobbling inside the loose bearing.
I would get this fixed ASAP. The bearings can get bad enough to adversely affect your steering. I've seen the splined tip snap off the outboard CV joint on GMT400, GMT800, and GMT900 4x4 pickup trucks with sufficiently knackered hub bearings. The wheel comes off with the hub still attached when that happens. Suddenly loosing a steer wheel would be darn exciting at 70-85mph in traffic. Even 35-55mph on thin roads could be pretty nasty given the proper confluence of conditions. Driving along a steep embankment, canal, river, pond, or lake comes to mind.

If the ABS complaints continue after the hubs are replaced you likely have a damaged wire between the plug and the main harness. Dorman makes repair pigtails for fixing this problem.

 

[sonjaab]

BTW: I bought the cheapie china specials at rock auto.......
$74 bucks shipped a pair
A-ok sofar..........

 

[sheila]

^ Rene S93, be sure to try the "clean and lube "1st unless for certain you have a faulty wheel/hub bearing.

 

[hatzie]

^ Rene S93, be sure to try the "clean and lube "1st unless for certain you have a faulty wheel/hub bearing.

That'll fix the ABS if the plug is problematic. His comments about nasty noises make me think it goes a bit deeper...

"when I turn and then rapidly or moderately accelerate I hear scraping noise and the car does not move, as well as it shakes from the front."
^^This comment specifically makes me figure it's one or both of the hub/wheel bearing cartridge(s) up front.^^
It could be brakes as well but the traction control and ABS getting upset leads me in the direction of the hub/bearing assembly.
New hubs come with new sensors so that half of the service disconnect plugs will be brandy new. You can cast a wary eye at the harness half of the disconect to look for corrosion & crud intrusion.

 

[reubenswinks]

If someone isn't aware what the ABS or traction control engaging sounds like, I could see that being described as a scraping noise. That makes more sense with the comment "the car does not move, as well as it shakes from the front". I just went through this with my car. Every time I tried to turn left while accelerating, traction control kicked in and essentially stopped my acceleration. Ended up being quite dangerous as I need to cross 2 lanes of 55 mph traffic to get out of my driveway. I disconnected and cleaned my connection and it seems to have stopped my issue for now.

 

[hatzie]

If someone isn't aware what the ABS or traction control engaging sounds like, I could see that being described as a scraping noise. That makes more sense with the comment "the car does not move, as well as it shakes from the front". I just went through this with my car. Every time I tried to turn left while accelerating, traction control kicked in and essentially stopped my acceleration. Ended up being quite dangerous as I need to cross 2 lanes of 55 mph traffic to get out of my driveway. I disconnected and cleaned my connection and it seems to have stopped my issue for now.

I'd call it a mechanical buzzing or even a groaning noise but I can see where some might call it scraping.

ABS malfunction codes would be useful but I'd take it a little deeper to verify things if this was in my shop.
This is where a tablet or laptop diag tool that can interrogate the ABS computer and graph the output from the wheel speed sensors would come in handy.
The Tech2 is really great for a lot of things but this is where the Snap On Virus or Autel Maxsys tablet tools shine.

Graphing sensor outputs received by the controllers gives you a window into where to look for problems.
If the sensors chug right along with reasonably consistent waveforms between them while driving straight ahead then turn the wheel to see if you can replicate the problem.
If one or more sensor drops out completely or gets super choppy & strange compared to the others combined with the noise being complained about it's a big red flag on that wheel.
Then you put it on the lift and start examining things on that corner a lot closer.