Question about 1999 Chevrolet Silverado 1500

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Abs oight is on

1999 silverado z71. ABS light is on or sporadically comes on sometimes in conjunction with the parking brake light. I have replaced both front hubs which included new abs sensors as well as regrounding ground connections on frame under drivers side door and .behind driverside front bumper but still have the problem.

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  • Anonymous Mar 15, 2014

    have regrounded main & under driver door replaced hub/sensor assy.8 months back

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There is a vehicle speed sensor on the transmission and one on the rearend...have those two replaced and that should solve your problem

Posted on Jun 04, 2009

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Abs and park brake light comes on and sometimes the cruise control will cut off only when the ac fan is turned on


You must have the systems control module scanned for faults that will explain this. Guessing wastes time and money.

Aug 21, 2016 | 1999 Chevrolet Silverado 2500

1 Answer

1999 1500 ls abs and brake light on at same time then off just sometime


WHEN YOU SEE BOTH LIGHTS AT THE SAME TIME YOU ARE HAVING BRAKE FAILURE EITHER MASTER CYLINDER FAILING OR ABS BRAKE MODULATOR FAILING.CHECK BRAKE FLUID LEVEL IN BRAKE MASTERCYLINDER. IF BRAKE FLUID LEVEL OKAY. I HAVE SEEN CASES WHERE ALTERNATOR FAILING CAUSING BATTERY VOLTS TO DROP AT 11.8 VOLTS CHECK BATTERY VOLTS AT BATTERY WHILE ENGINE RUNNING SHOULD BE 13.5 TO 14.5 VOLTS AT BATTERY WITH ENGINE RUNNING.IF BATTERY POWER IS OKAY.MORE LIKELY BRAKE MASTERCYLINDER AND ABS MODULATOR COULD BE FAILING. TAKE VECHICLE TO A GARAGE LET THEM CODE SCAN TO SEE WHAT CAUSING ABS AND BRAKE LIGHT TO COME ON.CODE SCANNING WILL SAVE YOU TIME AND MONEY.

Sep 11, 2011 | 1999 Chevrolet Silverado 1500

1 Answer

1999 silverado replaced both ABS sensors on front wheels,replaced complete ABS unit. abs light still on?


sometimes when u buy new sensors they come out of the box bad .... ..... u can try to reset ur truck by unpluging your battery for ten minutes if that dont work then try getting someone to plug a diognostic computer up to the truck to find the problem

Oct 13, 2010 | 1999 Chevrolet Silverado 1500

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Abs and brake light always on brakes work fine but no abs


low on brake fluid or e-cable not all the way up can cause light to stay on, can computer test as far as abs to see whats wrong,

Feb 07, 2010 | 1999 Chevrolet Silverado 1500

1 Answer

Volvo s80 1999 2.9 abs stc trac not working


having the same problem with my 1999 s80 2.9 . replaced the abs module twice and still get the brake failure warning. when the ignition key is turned there is a clicking sound from the center console beneath the shifter, then the brake failure warning, and the car will not start. (also after the last abs module replacement the car sometimes gets stuck in park).

Feb 03, 2010 | 1999 Volvo S80

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Abs codes co281 & co265


the first of the two codes is for the brake light switch, the one that is under the dash attached to the brake rod and brake peddle. Not much to diag on that one, if its bad it's bad, and when it sets the code that means it's bad.
The second one is for the abs modual, it's under the truck on the drivers side. It is bolted to the top of the thing that has all of the brake lines going to it. MOST all of the time that code is set the modual is bad. It can be a little hard to get the bolts out they are torqs 20 or 25(i'm getting old). There are four of them holding down the modual. There are also a couple of connectors going to it. And some of the time it will blow the fuse for the abs under the hood(its in the underhood fues block). Make sure to clean off the modual before you pull it out. You don't want dirt getting in the solinoids for the BPMV(that's the thing it's bolted to).

Oct 20, 2009 | 1999 Chevrolet Silverado 1500

1 Answer

1999 Silverado occassional brake issues


Check to see if the caliper bolts are installed correctly .

Jun 10, 2009 | 1999 Chevrolet Silverado 1500

1 Answer

ABS light comes on sporadically. Then sometimes when at a slow stop lurches forward a foot or so. when I press harder on brake it stops. Have had mechanical of brakes checked and all seems to be well....


hello, it is more than likely an air bubble is trapped in your ABS pump itself, if so, it will need to be purged! a speed sensor could turn on ABS light, but will have no affect on hydraulic pressure at a stop, only an ABS (skid) stop. good luck marty
ps.......the pump needs to be purged with a san tool

Jun 04, 2009 | 1999 Chevrolet Malibu

1 Answer

Service Brake system flashed three seperate times over 24 hours


2 suggestions:

(1) I would suggest someone scan the ABS system for codes. I Have an '03 silverado 2500HD Crew cab, and it needs an EBCM (Electronic Brake Control Module) "ABS module". "Service Brake System" message on dash, ABS and Brake warning lamps lit as well. May be the R/F ABS wheel speed sensor, but what you described happen, shouldn't have caused damage to it.
(2) If the aftermarket rim and tire combo are larger than stock (larger overall diameter), then this may affect the way your PCM functions. You can reprogram the PCM to recognize larger diameter running gear so trans shift points and the speedometer and such can function properly.
I hope this helps.

Nov 14, 2008 | 2000 Chevrolet Silverado

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