Question about 2004 Chevrolet Astro

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Abs light and brake light come on when I hit bump

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

awcforever
  • 359 Answers

SOURCE: ABS lights come on

Have you checked your brake fluid? If your brake fluid is low, you will need new brakes, or if you have a leak, you will need to inspect for it. As far as the sensors go, if your brakes and fluid check out, you usually need to get someone to read the code with a scanner. I believe they do it for free at Advance auto. Good luck.

Posted on Feb 28, 2009

jsmes1027
  • 749 Answers

SOURCE: 2002 Chevy Malibu. ABS light

The abs light will reset every time the vehicle is shut off. The most common cause of the abs light coming on is a bad wheel speed sensor. A scan tool would be the option to locate the fault in the abs system.

Posted on Jun 01, 2010

  • 2309 Answers

SOURCE: All my guages started going

when multiple systems fail its usually a ground problem, and they are hard ro find, the battery grounds to the engine and the engine to the body, that is where you start, i carry lenghts of wire with alligator clips and branch grounds on units, especially the steering column

Posted on Dec 03, 2010

bluebirdmate
  • 1190 Answers

SOURCE: when I drive my truck if I hit a bump in the road

Hello: Make sure the electrical connectors are corrosion free and on tight. Do this first. You may have to have the codes read again. You could have another bad w/b or sensor

Posted on Jan 13, 2011

vaporspace
  • 1 Answer

SOURCE: 03 z71 tahoe wiggs out when u hit a bump

I have had the EXACT same problem with my 03 Chevy Tahoe!!! I have yet to find out the solution!? I cleaned all my grounds and changed my rear speed sensor along with bench tested my alternator! Have you found the problem? I would be very grateful if you could hit me back with an answer!! Thanks

Posted on Jul 21, 2012

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I HAVE A 2009 GMC ACADIA WHEN I HIT A BUMP THE CHECK ENGINE LIGHT COMES ON , THE ABS LIGHT COMES ON AND STABILY TRACK LIGHT COME ON WITH A TROUBLE CODE U073 AND A U121


U073 is a communication code from one module to another to simply put it. Code U073 refers to a communication problem with the electronic brake control module ( Which controls ABS/Traction and stability ). I would suspect a loose connection/shorted wiring or even possible internal problem with the brake control module.If the issue occurs after hitting a bump, most likely a loose connection or the wiring rubbing somewhere causing a short from the brake control module.

Nov 11, 2015 | 2009 GMC Acadia

1 Answer

New hub and abs light come on when turning or hit bumps


The brake sensors. Cars with antilock brakes have an amber or yellow warning light, which usually says ABS. If this light stays illuminated after the bulb check, it indicates a problem with the antilock braking system. The ABS controller will disable the system and your brakes should function as if you don't have ABS. In this case, you can safely drive the car to a mechanic for service.

Mar 16, 2015 | Cars & Trucks

1 Answer

I have 1999 4x4 blazer the abs light comes when u hit a bump and when u turn left hit the brakes it a nosie and hard to stop any help will greatful thank u


check for failing wheel bearings as the hub may be contacting the sensor for the abs because of excessive hub movement. Noise and hard to stop suggest a brake fault (no pads) or loose disc rotor.

Sep 08, 2013 | Cars & Trucks

1 Answer

When the ABS module goes bad does it cause the truck to lose speed, reduce engine power, and shut off when you hit bumps


Sounds more like a loose connection in the harness. If the ABS module failed, the system would default off and your ABS warning light would come on.
The ABS module measures tire speed and applies brake pressure to prevent skid.

May 13, 2013 | Cars & Trucks

2 Answers

2001 Carerra brake pushes back!


ABS Braking System being activated for some reason

Nov 26, 2012 | 2001 Porsche 911 Carrera

1 Answer

How do i solve problem with abs ,service and stop light coming on an also bumping noise..once hitting on brakes


autozone can scan your car for free if it's 1996-newer and they could tell you which speed sensor is bad if at all. but remember being Renault it could have a brake wear sensor for the rear brakes or front

Sep 03, 2012 | Renault Cars & Trucks

1 Answer

Why are my brakes locking up and grinding whenever i hit a bump or uneven surface while braking?


Sounds like you have a speed sensor signal dropping out. This would cause the ABS system to falsely think one of the wheels has locked up and would turn on the abs to unlock the wheel.

You can visually check the wiring harnesses to the speed sensors to see if there are any corroded connections, corroded wires or broken wires. If everything looks good than the next step would be to drive it with a scan tool and watch ABS data. You should be able to spot the speed sensors that drops out on the scan tool when the problem occurs. Than you can focus on that wheel to see what the problem is.

Aug 13, 2012 | 2005 Chevrolet Equinox

1 Answer

Abs brake light comes on replaced it but couple days same proplem it goes off when turn motor off but comes back on if hit a bump


What did you replace?If it where a sensor,make sure you changed the right sensor,also wheel bearings gone bad will cause this,also bad rotors,and brake pads.If the vehicle has problems stopping like the computer thinks ,then the light will come on,but if hitting bumps causes the light to come on,then the wheel bearing or rotor,or brake liners(pads)could be the problem.I hope this was some help.

Oct 05, 2009 | Dodge Pickup Cars & Trucks

1 Answer

1999 jeep grand cherokee abs light has come on.what to do?


actually it could be something as simple as low on brake fluid. check this and then check to make sure you do not have worn brake pads on the tires this can also set a code when one tire stops quicker than the other

May 09, 2009 | 1999 Jeep Grand Cherokee

1 Answer

Brake dash light and abs dash light comes on when a bump is hit


if the brake pedal is low than the problem could be that the brakes need replacing and the other problem could be a problem with the ABS system

Jan 16, 2009 | 2000 GMC Safari

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