Question about 1999 Chevrolet Silverado 1500

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My ABS light came on while driving my 1995 GMC 1500. The brake pedal is also weak and it does not have air in the lines or is low on brake fluid. What else could be the problem?

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Air in the abs unit if the fluid level got too low. Also, the pads on the front of the truck could be worn completely down. Or your rear shoes are bad.

Posted on Sep 07, 2010

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1 Answer

Abs brake light


I start by cracking the lines at the master cylinder first to ensure that the cylinder is properly primed . Then start at the longest line first working back to the shortest. The abs light sometimes work in conjunction with the traction control unit ( both use the same sensors at the wheels) so have the fault codes read and reset the computer

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1996 Dodge Dakota - Brake pedal became very soft . checked brake fluid ,it was seriously low ,added fluid ,now brake light & abs light stay on and the brake pedal is extremley soft.


You have a leaky brake line somewhere. You will need to find and repair it. If you don't see any lines that are wet, you may have to pull the rear brake drums to check the wheel cylinders. They can also start to leak but are not as likely as a line. If your truck is a standard it's possible that your hydraulic clutch uses the brake master cylinder as a resevoir so check that line as well. A soft pedal would suggest that isn't the problem but if the fluid was low enough air could get into the lines. Hope this helps.

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My ABS light has been on for a while and today I hit the brakes and they turned spongy. Then I pushed the pedal some more and the brake pedal went right to the floor. Then the emergency light came on and I...


I hope you have enough sense to stop driving it and stop added brake fluid

Lets review:

ABS Light is on--You may have an ABS System failure,do we continue to drive it, no
But you did,you said awhile
Spongy brakes--normal,I don't think so
Brakes go to floor--how many things can cause that,maybe 2
Emergency Light--now were in big trouble,no brake fluid
Added Brake Fluid---no fluids are consumed on a motor vehicle
any fluid loss is from a leak and requires repair
You never top off any fluid,don't need to

You have an older vehicle with rusted out brake lines
You need to buy brake tubing,cut,bend,flair and fabricate new ones
No vehicle in history, ever had brake lines made for replacement

Dec 02, 2010 | 1994 Buick LeSabre

1 Answer

My abs & brake lights go on & off brake pedal seems soft brake fluid - ok, no leaks, has new brake lines, slamming on the brakes locks 'em up. no abs, right? 2000 gmc jimmy 4.3


Sounds like you might have air in the brake system. You will need to bleed the brakes to remove air. Start with the passenger back wheel. use a small hose and submerge the end in a glass bottle filled 1/3 full of brake fluid. The other end goes on the nipple of the brake bleeder. Have someone pump the brakes and then hold the pedal down then loosen the bleeder. then tighten the bleeder. you should see bubbles in the brake fluid. Keep repeating this procedure until you see no bubbles. You might have to put as much as 1 quart of brake fluid thru each wheel to remove air. Then you do the driver side rear followed bypassenger side front and finally driver side front

Aug 11, 2010 | 2000 GMC Jimmy

1 Answer

My 1997 gmc 1500 has developed a "soft" pedal and the I P lights have come on. If I clamp a pair of vise grips on the rear brake hose before the "T:|"the pedal becomes firm. I have bled the brakes many...


Hi, you are experiencing the GM brake pedal, this is a common problem, most of the time the abs module is to blame. if air gets trapped in the module it will always be spongy. you need to crack the bleeders just after the abs unit and have an assistant push down on the pedal and do a "non-pressure" bleed on this to get the air out. then bleed the whole system all over again. good luck and buy brake fluid in bulk. I went through 3 big bottles before i got all the air out.

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96 Chevy Cavalier brake pedal to the floor


First check your brake fluid.
Either you have a failing brake booster, or you have developed a leak in one of your brake lines. If your brake line is leaking, it should be pretty evident, i.e. oily looking substance sprayed underneath the vehicle or in the wheel wells, if the booster is leaking (the large black/silver almost bowl shaped thing directly in front of the driver under the hood against the back wall) there will most likely be fluid dripping down the firewall below it, if your brake fluid is extremely low/empty, you probably have a leak, that could be at the booster or on a line, or even at the caliper/drum. If it is empty (which can make your ABS light, light up) then you have yourself a leak. Also, if the fluid is really low, you could try adding some, although you will have air in the lines if it was low enough to floor the brake, but you might be able to find the leak if you refill the fluid and cause it to spray from the leak again. Have someone watch under the vehicle while you do this.

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1 Answer

BRAKE PEDAL GOES ALMOST TO THE FLOOR, DASH LIGHT ON FOR BRAKES, PEDAL APPEARS SPONGEY.


SOUND LIKE AIR IN BRAKE LINES.CHECK BRAKE FLUID LEVEL MAKE SURE ITS NOT LOW. CHECK ALL BRAKE HOSES AND BRAKE LINES. FOR LEAKS. YOU HAVE TO BLEED BRAKES.IF ALL IS GOOD.YOU HAVE MASTER CYLINDER AND ABS BRAKE FAILURE.HAVE DEALERSHIP FIX IT.THEY HAVE THE EQUIPMENT TO TROUBLE SHOOT AND BLEED THE BRAKE SYSTEM.

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3 Answers

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Or you could just pull the fuse for the abs and not have abs but you won't wreck from pulsating pedal.

Jan 01, 2009 | 1998 GMC Sierra

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