Question about 2000 GMC New Sierra 1500
Hello I have a 2000 GMC Sierra pick-up that I just recently got a gear job on. Ever since then my ABS and Brake lights come on together and stay on while driving and of course go out when I re-start the truck and then come on later again. Although at other times when I drive they just don't come on at all. Now I took it to a brake repair shop and they ran the ''abs'' diagnostic set on it which told me that it was a bad left front sensor. Well I've had it replaced and they still come on even after the mechanics told me that the sensor would take a few rotations to reset the system. Still nothing. What do I do?
HEY GUY ,,SORRY FOR CAPPS BUT OH WELL......MY 99 GMC DOES SAME THING...TRY TURNING KEY ,,,,LIKE YOUR GOING TO START IT BUT DONT GO FAR ENOUGH TO HIT STARTER....WHEN MESSAGE CENTER TURNS RED ,,BACK OFF...THAT WORKED FOR ME FOR 14 MONTHS ...NOW GETTING TO BE ALL THE TIME...I THINK ITS THE COMPUTER..HEARD LOTS OF MONEY..PCM ECM,,WHATEVER..ANY OTHER HELP WOULD BE APPRECIATED ??? HOPE IT HELPS YOU FOR A WHILE...DO YOU STILL HAVE TRUCK ???
Posted on Nov 05, 2012
Have you by chance checked your fluid? If not, you may want to do that, it could show that you need brakes if it is low. If that doesn't do it, the mechanic may be right about a sensor, but just the wrong one. Hope that helps.
Posted on Feb 15, 2009
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Posted on Jan 02, 2017
The rule of thumb is to start as far away from the master cylinder as poss. so it means you start at the right rear, left rear, right front, then at last left front. There is a little a little weep bolt on each calliper it needs to be un lossened when break is fully applyed then tighten weep bolt back up pump the breaks while weep bolt is still tight then hold brake pedal down to floor lossen weep bolt till a full steam of fluid comes out tighten bolt back up, now move on to the next break calliper and repeat this same proccess till you finished. Hope this works better than r/r l/r r/f l/f lol!!!!
Posted on Apr 06, 2009
Wheel speed sensors misadjusted, damaged , or metal shavings and other debree, since they are magnetic can give false readings from one of the wheel circuits. Over sized tires can give of false speed readings as well. there are many other causes including bad relay, control module, e.t.c. It is best to have the proper scan tool to diagnose an ABS problem
Posted on Jul 09, 2009
yo man, idk if this is exactly what your problem is but my 1991 gmc sierra was doing the same fuckin thing and ****, and i took it to the gm dealer and had them look at it and my connectors and my ignition switchs were fried, also my truck was having a problem shitfing once those went but i also had that problem, perhaps yours is somehwta liek that as well... hope i could help
Posted on Aug 08, 2009
SOURCE: ABS problem with GMC 2002 Sierra
its a low speed abs activation the problem is in the front sensors they need to be cleaned or replaced they [or one] probably has some corrosion on the sensor --[the 99 chevy tahoes had a limited recall over this issue and the fix was to remove and clean the abs sensor or if to corroded replace ] this problem doesnt set off an abs code or trouble light also sometimes the abs will activate by itself at under 4 mph without even touching brake
Posted on May 15, 2010
the most common cause is wheel speed sensor or sensor wiring not reading proper wheel speed.it is also possible the reluctor wheel inside front bearing is clogged with rust and debris and unable to send magnetic pulse. This can be tested with scanner to determine wheel in question.ohm meter can be used to test sensor and reluctor pulse.
Posted on Nov 28, 2010
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