Chevy Suburban 2002 - 2WD w/ tow pkg - ABS system pump is making noise - mech says it has siezed up and needs to be replaced for $1,000 to $2,000 and no assurance this repair will restore the ABS system. We live in coastal so. CA and have never towed anything. Do we need the ABS system to safely drive the vehicle?
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hey check ur abs wheel speed sensors. check data when ur moving lf rf and rears should be reading same speed. its probably gonna be a bad wheel bearing cause that where ur speed sensors are built in to. u need a abs scan tool to monitor ur wheel speed parameters in order to pin point ur bad sensor. or pull codes from ur abs module and see what side it says is failing. good luck
For how long after does it make noise it's not uncommon for the pump to stay running 3-7 seconds after shut down however if it getting noisy you may need to change your fuel filter restrictions in the system will make it noisier
YOU HAVE TO HAVE VECHICLE TOWED IN TO A GARAGE ONLY THING YOU CAN DO IS TURN OFF RADIO TO KEEP FROM LOSING THE CODE, THEN DISCONNECT THE NEGATIVE BATTERY CABLE TO KEEP FROM DRAINING THE BATTERY.IF YOU DISCONNECT ABS BRAKE MODULATOR UNIT FUSE AND RELAY YOU CANT DRIVE VECHICLE UNTIL TOW IN FIX,YOU NEED DIAGNOSTIC EQUIPMENT TO FIX VECHICLE.NOT A HOME FIX.
If the ABS fails, the brakes will lock up when you brake hard enough to have needed the ABS system to engage. The ABS works by sending a pulsing action through the brake system when you brake hard enough to lock up the wheels.
In the old days before ABS we used to have to pump the brake pedal to achieve a pulse in an attept to keep from locking up and sliding. The old way of doing it is no where near as effective as modern ABS. You should never pump the brake pedal on a vehicle that is equipped with ABS. If your ABS has failed, yours and others safety is at risk. Get it fixed ASAP.
Remove the ABS maxi-fuse (Large fuse) located in the under hood electrical center. In the event you cannot locate that fuse, you can unplug the ABS pump two wire connector at the ABS pump motor located under the vehicle.
I have had the ABS light come on and stay on on a 2000 Suburban and a 2003 suburban. In both instances the brake system was fine. If you have not done so I would recommend you have the system checked for codes. If there are no error codes and the system is functioning properly the problem with the light staying on can be solved simply. Or at least I hope this solves your problem.
There is a small ground wire that is secured to the top rear of the engine block. It is on the passenger side of the engine. To find it remove the engine cover and reach back to locate the connection. Over time the ground connection gets compromised by dirt, grease, or corrosion. You need to unbolt this connection, clean the surfaces and re-install. On a friend's truck I just reached back and twisted the connection to seat it better and the lights have not come back on.
It sounds too simple but if it works it is much better that giving money to the dealer or a mech to solve the problem.