Buzzing noise The abs light came on and there is a noise like a motor running that went on for hours after the car was turned off. Kind of like a buzzing noise?????

First get that ABS unit sorted out. If it's buzzing it's using power and draining your battery. A flat or low charge battery can cause all sorts of issues.
What EXACTLY is it doing when you turn the key? This will help troubleshoot the reasons for the no start.

Then you know your vehicle has a system failure
& should be at a repair shop within a day or two
of any dash light staying on, after the motor is running

Dealers & Repair Shops can't resolve way too many
many problem, so we can can't guess at that one

Hey Lg,,
Have your battery/alternator checked at a battery/alternator shop... you may have a loose connection or one or the other is going bad..??

howdie sounds like their could be abs module week or you could have a sensor wire broke on one of the wheels, or the master cly could have a leak does the pedal come bk up right away?ck this out if not get a quote from your local garage its not good to mess around with brakes

sounds like you abs pump is out or going out it will need replaced by a dealer

if truck is off and you hear a motor running it is probabl;y the abs unit running. the ebcm module is bad and causing motor to run all time. slide under truck under drivers seat area and you will see abs motor unplug it for now this will stop from running will need to replace ebcm to correct

abs stands for anti breaking system its something strting to go wrong with your brakes it throws that code until you fix the problem could be serious could be low break fluid find a honest mechanic shop most of them will tell you what it means free they can pull the abs code that tells them what it is good luck

There is a relay inside of the ABS motor housing that can stay engaged making the motor run continuously without the key in the run position. If this is the problem the only fix is to replace the Brake Pressure Modulator Valve assembly. You may also may need to replace the Control Module that is attached to it.

The motor can be unplugged from the module and will shut off. The ABS light will stay on until it if fixed properly. The other way to shut down the motor is to remove the ABS fuse in the underhood fuse box.

The ABS module and BPMV are expensive and the brakes will have to be bled. Junk yard parts can be cheaper if your capable to replace them.

A relay controls the ABS motor. You can trace the wires running to it. The next time you shut the engine off unplug the relay. If that shuts it off get a new relay for the old one will not open its circuit to shut off the motor to the ABS motor

i serviced my 2004 yukon for abs light came on they told me it was the right front abs speed sensor wire , which is sold sepratly or with wheel hub cost$ 300 or 57$ for just sensor wire, i did all brakes changed sensor and for awhile the stayed off but comes on and at about 20 mph it turns off ?