Abs Acting Up

chevytrucks · April 23, 2008

here there need some help, for some reason latly my abs has been kicking in when the truck is about to come to near stop and its nothing but dry ground, i know the truck is not sliding, something is wrong here its been happening more and more the last couple of weeks. anyone know of a probelm?

thanks

todoubled05 · April 23, 2008

here there need some help, for some reason latly my abs has been kicking in when the truck is about to come to near stop and its nothing but dry ground, i know the truck is not sliding, something is wrong here its been happening more and more the last couple of weeks. anyone know of a probelm?

thanks

are we talking about a gmt-900? if so mine and many others do the same thing. after talking to a dealership about the problem they said it was nothing to worry about and that its just a " characteristic " of the truck.

ewiski · April 23, 2008

you should worry about it.it causes increased braking distance and could cause you to rear end someone.

cm5 · April 23, 2008

most likely your ABS sensors will need to cleaned and or replaced.

this has a common issue with early GMT 800- models and i would think your 2004 will probably be effected as well.

my 2001 made similar problems and there was a recall on it to replace the sensors. well 2 recalls. first one didnt actually fix the issue. the first recall they updated the puter and second recall they replaced the senors and update computer. not exactly sure as i traded in the truck prior to the 2nd recall.

p.s. the problem i decribed would only happen uner 20-25 mph...hard decerlation as well

chevytrucks · April 24, 2008

yes it is at low speed, and not always on hard braking but more often on soft braking, i feel like it would eventually cause me to rear end someone because if i decide to brake really late at one instance then it may change the actually stoping distance. i dont think its normal.

where can i find out if there is a recall?

thanks

frank

cm5 · April 24, 2008

yes it is at low speed, and not always on hard braking but more often on soft braking, i feel like it would eventually cause me to rear end someone because if i decide to brake really late at one instance then it may change the actually stoping distance. i dont think its normal.

where can i find out if there is a recall?

thanks

frank

under the tech wiki section there is this listing:

http://www.gm-trucks.com/forums/index.php?...ticle&id=65

You could prolly call a local dealer, give them your VIN and the could tell you.

here is the recall on the 2001 silverado's

Make / Models : Model/Build Years:

CHEVROLET / AVALANCHE 2002

CHEVROLET / SILVERADO 1999-2002

CHEVROLET / SUBURBAN 2000-2002

CHEVROLET / TAHOE 2000-2002

GMC / SIERRA 1999-2002

GMC / YUKON 2000-2002

GMC / YUKON XL 2000-2002

Recall Number: 05V379000

Summary:

CERTAIN PICKUP TRUCKS AND SPORT UTILITY VEHICLES MAY EXPERIENCE UNWANTED ANTILOCK BRAKE SYSTEM (ABS) ACTIVATION. THIS CONDITION IS MORE LIKELY TO OCCUR IN ENVIRONMENTALLY CORROSIVE AREAS. THIS RECALL WILL BE LAUNCHED IN THE "SALT BELT" STATES OF CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MARYLAND, MASSACHUSETTS, MAINE, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WEST VIRGINIA, WISCONSIN AND THE DISTRICT OF COLUMBIA ONLY.

Consequence:

THIS CAN CAUSE INCREASED STOPPING DISTANCES DURING LOW-SPEED BRAKE APPLICATIONS, WHICH COULD RESULT IN A CRASH.

Remedy:

DEALERS ARE TO REMOVE THE WHEEL SPEED SENSOR AND THOROUGHLY CLEAN THE WHEEL SPEED SENSOR MOUNTING SURFACE ON THE BEARING, APPLY RUST INHIBITOR TO THE CLEANED SURFACE, GREASE THE MOUNTING SURFACE, REINSTALL THE WHEEL SPEED SENSOR, AND CHECK THE PEAK-TO-PEAK OUTPUT VOLTAGE TO ENSURE THE WHEEL SPEED SIGNAL IS WITHIN SPECIFICATIONS. THE RECALL BEGAN SEPTEMBER 22, 2005. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438 OR GMC AT 1-866-996-9463.

Notes:

GM RECALL NO. 05068. GM REVISED THE INVOLVED VEHICLES BY AMENDING THE ORIGINAL 573 REPORT ON OCTOBER 4, 2005. GM REVISED THE ORIGINAL 573 REPORT ON DECEMBER 16, 2005, TO INCLUDE ADDITIONAL STATES AND VEHICLE POPULATION. CUSTOMERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO HTTP://WWW.SAFERCAR.GOV.