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2001 Silverado Brake Issue

M

miangus

Well-known Member
Got into truck to go to the farm. When I got to the of the end off the drive the ABS light came on. Drove to the farm and when I got out I could hear the ABS unit running with the key off. I pulled the fuse and it quit. If I put the fuse in the ABS unit runs continuously. The brakes work fine with the fuse out. Any ideas where to start.
 
Working from some old memories so bear with me.

Got into that several years ago. Was able to remove the cover from the ABS unit and exchange it with a rebuilt one.

This can be done on the vehicle and does not break into the fluid. You can still drive it.

Easy fix best I recall.
 
(quoted from post at 21:21:40 04/05/21)
Leave the fuse out you will not have the ABS function it will still have pre ABS good old fashion brakes : )...
Click to expand...

Exactly what I did to mine years ago. It is a bit un nerving when the ABS kicks in coming up to stopped traffic on a bone dry summer road. Just because of a bad speed sensor. :evil:
 
I'd start with putting a scanner on it and seeing if any codes are set.

You can buy a fairly decent scanner for what a shop would charge you to scan it. But not all scanners do ABS.
 

You would need a scanner with bidirectional controls to bleed it big $$$... BTW I don't understand your thinking on that "cornfused"...
 
Had a 2002 Silverado that the ABS system would make a noise like it kicked on and didnt. Was going about 5 MPH and nearly rear ended a car. And this was AFTER I had the back brakes bled after installing new calipers. They were bled by a shop in town, should have done it myself. Please, take it in to a reputable shop or person who knows how to fix it (not saying you dont know how to). Chevy Silverados within this time frame are known for brake issues, ended up doing a few sets of pads on mine. There is a fix but I cant remember it, think it is a wheel sensor though.
 
.
Click to expand...

You have a stuck relay in the ABS unit.

Most often they fail the other way and can't make contact when needed.

A couple of grand will take care of that at the stealership, or you can go on the 'net and find a place to send the circuit board to for a rebuild or exchange and get it fixed for a couple of hundred $$$ and some "sweat equity".
 
My 2500 did that. My old mechanic told me to just pull the fuse as someone else suggested, so the brakes would work right. Not worth fixing it, and I drove it that way for quite a while. Think it was some issue with the front hubs.

Tim
 
Yes, the issue is with the front brake sensors.

Rust builds up under the sensor and pushes it out away from the reluctor ring in the hub. It's too far away to properly sense wheel speed, so when you get down below 5MPH, it thinks the wheel is sliding, and kicks in your ABS system.

If you have a 2500 or 3500 SRW it's an easy fix. Just pull the brake caliper and rotor off, pull the sensor out, file the surface where it sits flat and shiny, and put it all back together. The 3500 dually is a pain in the rear due to the wheel spacers. 32 lug nuts just to get to the brake calipers.

I've been driving my 2002 Chevy 3500 dually with the ABS fuse pulled for years. I think it needs new front unit bearings anyway so I haven't bothered.

HOWEVER, I don't think this is the problem here.
 

I pulled the ABS fuse on my 2001 about 15 or so years ago. Everything works just fine, and the truck will actually stop in a much shorter distance.
 
(quoted from post at 05:26:25 04/06/21) My 2500 did that. My old mechanic told me to just pull the fuse as someone else suggested, so the brakes would work right. Not worth fixing it, and I drove it that way for quite a while. Think it was some issue with the front hubs.

Tim
Click to expand...
n NYS if ABS light is on during inspection YOU FAILED
 
(quoted from post at 18:54:23 04/06/21) Yes, the issue is with the front brake sensors.

Rust builds up under the sensor and pushes it out away from the reluctor ring in the hub. It's too far away to properly sense wheel speed, so when you get down below 5MPH, it thinks the wheel is sliding, and kicks in your ABS system.

If you have a 2500 or 3500 SRW it's an easy fix. Just pull the brake caliper and rotor off, pull the sensor out, file the surface where it sits flat and shiny, and put it all back together. The 3500 dually is a pain in the rear due to the wheel spacers. 32 lug nuts just to get to the brake calipers.

I've been driving my 2002 Chevy 3500 dually with the ABS fuse pulled for years. I think it needs new front unit bearings anyway so I haven't bothered.

HOWEVER, I don't think this is the problem here.
Click to expand...

Yes, it never fails you fudge are replace the sensor and a wheel bearing goes out. NO not because you fudged with it, it has lived its life span. Now you need a wheel hub it comes with a new sensor you just threw sensor money away. No problem I will save it for the other side, when it goes out the new/used sensor will not fit its different... BTDT : (
 

Yes I understand that my point I should have clarified better it it needs a new sensor replace the hub/bearing assy. it comes loaded ready to go with a warranty...
 
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