Chevy Silverado ABS And brake Problems

Question:
1997 chevy 1500 4+4 5.7 liter. Why does my ABS light come on. Brake paid are good. I check all connection seem to be okay. Truck brakes good to. Cant figure why light came on. Help thanks!

Answer:
If the ABS light comes on, there should be a code stored in the ABS computer. Your truck may have an open recall for the front speed sensor mounting area corroding, causing improper air gap between sensor and the hub reluctor ring. A common symptom is that the ABS activates at slow speeds, and while hitting the brake pedal and turning (parking lot maneuver) Call local dealer with the VIN # and they can tell you if your vehicle needs the recall.

If no recall, the next step is to have the system scanned for trouble codes. Other common faults are the front hubs or sensors themselves. Also the rear wheel speed sensor in the transfer case.

Question:
2001 Chevy Silverado. So this is my last attempt to figure out what to do about my brakes. It all started with my changing my calipers on my 98 s-10 2wd 2.2. While i was doing so the fluid dropped way to low as in none in my master cylinder after trying to bleed the air i ended having to replace both wheel cylinders and long story short all of the steel brake lines. Also replaced the master cylinder and yes i bench bled it 1st. i've bled those brakes so many time i lost count i have a feeling i have air trapped in my abs unit. i tried bleeding from the fittings to and from the abs unit with no difference.

I bled the brakes with the engine off and tried while the engine was running. i still have a real spongy pedal and i can lock my wheels up at all. So no stopping fast for me i haven't been driving the truck because of this problem i don't have the money to take to a GM shop so any help would be GREATLY APPRECIATED.

Answer:
Unfortunately, you're going to have to take it to a shop. If there is air trapped in the ABS unit on your Silverado, there is a special procedure that needs to be done with a scanner. This procedure is called an 'auto-bleed' and it runs the motors inside the ABS assembly to get rid of any trapped air. This is usually the first step in bleeding after replacing any parts. Once this is done, you would need to start over and bleed normally at all 4 corners again. Then you should have a great pedal.

Question:
2005 Chevy Silverado 4x4 with A/C. 4.3 liter Vortec. ABS warning light on. Last summer I had both front hub assemblies replaced. After a recent snowstorm, I had visitors. One of them had to leave so I moved my truck, headfirst, into a foot and a half deep snow drift, in 4 wheel drive, so they could get out. When I backed out of the snow the ABS light came on, then went out. I now have intermittent light coming on. At slow braking speed it periodically comes on and the brakes feel spongy. It only lasts for a few seconds then returns to normal.

Answer:
You probably upset the wiring of one or both of the wheel speed sensors when you dove into the snow. Plus the wetness after melting can cause wire corrosion and terminal problems. Your hubs are still probably ok, unless you hear a growling noise while driving. You can replace the sensors independently of the hub bearings, so it shouldn't be as expensive as when you replaced both hubs.

It isn't that difficult of a job, if you are so inclined. You basically just have to remove the front brakes and rotors, then you can access the sensor assembly and wiring harness. You should replace both just to be safe, unless you have a scanner and can detect which sensor is dropping out.