Question about 2012 Chevrolet Impala

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On my 2012 Impala on take of I'm hearing a grinding scrapping noise also a temporary warning on service stability and brake asst also a traction light I have had both of my front hub's changed

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  • Chevrolet Master
  • 2,428 Answers

You say you had the front hubs replaced do you mean the brake rotors.
This sounds like a wheel bearing problem it would make a noise and also as the bearing degrades the wheel wil start to wobble .This would effict brakes traction and stibelty sensors .Who replaced the parts they would be responsable if you had a warrenty
Jack the vehicle up front 1 wheel at a time grap the tire top and bottom it should not move in and out at all if so its a bearing the whole system rides on the bearings .
This is a system so check rotor pads calipers sensors it all has to work together

Posted on Apr 05, 2015

  • 1 more comment 
  • Anonymous Apr 05, 2015

    I had the front hub assembly changed on both sides which is my wheel bearings I also had new brakes put on all 4 tires its making a grinding noise

  • JOHN LAPIER Apr 06, 2015

    From what you are saying about what you have done to the vehicle .And now I know for sure someone else did the work .Standard pratice on brake jobs dosn't include new wheel bearings .You spend some money and tryed to do the right thing These poeple who did this jod didn't inspect or repack the front wheel bearings .And now at least one of your front wheels is about fall off and damage your vehicle. If the spindle that the bearing rides on is damaged .

  • JOHN LAPIER Apr 06, 2015

    You have a spindle bolted to the frame a bearing tappered roller bearing slides over the spindle 1 inside 1 outside the rotor or hub slides over that with bearig seals inside and outside then a lock nut threads on the end of the spindle and sqishes it all together and its sealed with a lot of wheel bearing greese in side .1 of your front wheels is falling off

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Posted on Jan 02, 2017

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SOURCE: anti-lock, traction control, service soon,brake,

Anti-Lock and Trac Off lights are lit on my 1999 Alero, as well. They usually come on after about 5 minutes of driving, but are not always on when I start the car.

Posted on Jan 16, 2009

s_pra_army
  • 37 Answers

SOURCE: my car makes a scrapping and or grinding noise when driving and braking like i'm dragging something

Just by the information you put, I would say its your brakes. They are most likely worn out past the minimum wear (3mm). If its whenever you drive maybe you are dragging something? Your exhaust system supports may have failed, maybe something stuck in there and so you are dragging it along. Take a look underneath your car.

If the noise only happens when you brake then its gotta be a problem with your brakes. Sometimes rocks get stuck in between brake pads and rotors, this makes a very annoying squeeling sound until the rock comes loose and falls out. Another possibility, like I said earlier, is that your brake pads have worn out and is now metal on metal. I recommend you go to a shop and get your brakes checked. Brakes are a very important part of your vehicle, safety especially, so I don't recommend doing it yourself unless you know what you are doing.

Hope this helps.
Thanks

:)

Posted on May 08, 2009

  • 462 Answers

SOURCE: Impala - trac off and ABS light along with service traction syst

THE PROBLEM IS WITH A HUB WHEEL SPEED SENSOR OR MORE LIKELY THE HARNESS LEADING TO THE HUB.

CHECK THE RESISTANCE AT THE HUB CONNECTION, IT SHOULD BE BETWEEN 900OHMS AND 1300OHMS. THEN SWITCH TO A-C VOLTAGE, IT SHOULD BE 100MV WHEN TURNING THE WHEEL BY HAND. IF BOTH CHECK OUT THE PROBLEM IS IN THE WIRING TO THE HUB.

THE RIGHT FRONT HUB USUALLY HAS A BEND, DOWNWARD THEN UPWARD NEAR THE CONNECTOR TO THE HUB. THAT IS WHERE THE PROBLEM USUALLY OCCURS.

NEW HARNESS WIRES CAN BE BOUGHT AT THE DEALER.

Posted on Jun 18, 2009

  • 11 Answers

SOURCE: Service traction System Light

20 inch rims why?to look cool yeah but no

Posted on Jul 27, 2009

faaque812
  • 108 Answers

SOURCE: How do you turn off

the only way to reset this ABS light is with an OBDII diagnostic tool. You can buy one for around $25-$200 or any technitian would be able to reset it for you and probably not even charge for that. If it come back on after reset, that indicates there is a problem somewhere with the ABS system and it will give a code.
if this was helpful please give it thumbs up to help others.
Good luck

Posted on Jun 07, 2011

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Stability control activates when the controller senses a discrepancy between your intended path and the direction the vehicle is travelling. StabiliTrak selectively applies braking pressure at any one of the vehicle's brakes to help guide the vehicle in the direction which you are steering.


When you first start your vehicle and begin to drive away, the system performs several diagnostic checks to insure there are no problems. You may hear or feel the system working. This is normal and does not mean there is a problem with your vehicle. If driving conditions delay system initialization, the STABILITRAK NOT READY message may be displayed. If this is the case, your vehicle does not need servicing.


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could be a warn front hub bearing. this is real common . new hub should come with the abs
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Service traction System Light


20 inch rims why?to look cool yeah but no

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