Skip the auto shop - Our mechanics make house calls

Q: Why are my ABS and brake lights on

asked by on

The brake system kept getting hard and loose, then one day the front wheels looked up on us and now it hardly brakes when flooring. We see some wet spots near the master cylinder on the valves I think around the bolts. We have no way of taking it down the mountain so would like to know what we need to fix it? Thanks

My car has 264279 miles.
My car has an automatic transmission.

A: Your ABS light is on for a reason - and you...

Your ABS light is on for a reason - and you have some scary symptoms that underscore that the problem is real. Your Suburban is a pre-OBD II model, so you either need a code reader capable of reading ABS codes on this truck, or you can extract them yourself. Take a paper clip, bend it so that one end goes in the "A" position of the Assembly Line Diagnostic Link (flat wire connector under the dash), and the other end of the clip goes in the "H" position. Turn the ignition to "On" only. The ABS light will start flashing a 2 digit code. Google search this code (GM ABS xx), which should provide some guidance on what’s wrong with your ABS. If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make or suggest any repairs as needed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: U0121 can abs brake unit all dash lights on stalls in reverse

ABS control unit failures are pretty common on these cars, and cause several warning lights to illuminate when they fail, as well as set faults in almost every control module in the car. Based on the information provided, it's very...

Q: Loud squeaky noise and bad wobbles

A squeaking noise from brake pads, right after installation, is sometimes due to a high metallic content in a low cost aftermarket pad. The safest thing always is to use OEM specified brake pads, on OEM rotors, because the vehicle...

Q: I have a Audi 100 Quattro that surges while you drive once in awhile. You turn the car off and start it and a drives just fine. An

Hi There, It sounds like this may be related to misfire of some kind which may be triggered by a fuel pressure problem, but could also be triggered by many other things as well. Engine misfires can be caused by...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...