2004 Chevrolet Colorado service brakes, hydraulic problems

“TL* THE CONTACT OWNS A 2004 CHEVROLET COLORADO. THE CONTACT STATED THAT WATER CONTINUOUSLY LEAKED ONTO THE FRONT DRIVER SIDE FLOOR. THE DEALER STATED THAT THERE WAS A LEAK BEHIND THE FIREWALL OF THE BRAKE PEDAL. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 90,000...UPDATED 09/30/14 *BF”

“NUMEROUS BRAKE PROBLEMS -ABS BRAKE INTERMITTENT. - ABS KICKS IN FOR NO REASON (VEHICLE TO SUDDEN/ABRUPT STOP) - THEN AT OTHER TIMES HARD TO GET VEHICLE TO STOP - HUB(BEARING) AND ABS SENSORS PROBLEM - BRAKES LOCK UP WHEN PARKED - INTERMITTENT ABS FAULT CODES GM WILL NOT ACKNOWLEGE THE DEFECT IN THE SYSTEM. *JS”

“ABS TRIGGERED UNEXPECTEDLY, ABS AND TRACTION WARNING LIGHTS CAME ON. NO LOSS OF CONTROL. REPAIRED AT DEALERSHIP 10/14/11 REPLACING RF WHEEL BEARING HUB AND SPEED SENSOR. SUBSEQUENTLY INCIDENT REPEATED ON TWO OCCASIONS, CA. 11/15/11 AND CA. 12/16/11 AFTER STARTING INTO A TURN AT LOW SPEED, PERHAPS WITH SLIGHT BRAKING. NO LOSS OF CONTROL. CHECKED AT DEALERSHIP 2/14/2012 WITH NO CAUSE DETERMINED. LATER SAME DAY, FAILURE OCCURRED AGAIN, WITH SAME SYMPTOMS: LOW SPEED WITH TURN AND PERHAPS SLIGHT BRAKING. NO LOSS OF CONTROL. DIAGNOSIS SUGGESTED FAULTY HUBS AGAIN. RESOLUTION PENDING. *TR”

“FOR BEING MECHANICALLY INCLINED THIS IS DEFINITELY ONE PROBLEM I CANT FIX. I DID THE PADS AND ROTORS ON MY 2004 CHEVY COLORADO, ALL WENT WELL, NICE AND EASY. LATER THAT WEEK MY ABS LIGHT CAME ON. I HAD MY BREAKS CHECKED AND THE MECHANIC SAID IT WASH SHOWING WHEEL SPEED SENSOR. I BOUGHT THE PART AND REPLACED IT NICE AND EASY AGAIN. THE LIGHT TURNED OFF FOR ABOUT 2 MIN THEN CAME BACK ON. THE NEXT TIME I WENT TO DRIVE MY TRUCK I TURNED IT ON, THE SENSOR WAS OFF THEN THE ABS SYSTEM STARTED ENGAGING ON AND OFF MAKING A WEIRD PUMP SOUND AND MAKING MY BRAKES ENGAGE AND DISENGAGE. THIS HAPPENS FOR ABOUT 20 SEC THEN GOES AWAY AND THE ABS LIGHT COMES BACK ON. I THOUGHT NOTHING WORSE COULD HAPPEN AFTER HAVING THE COMPUTER REPLACED TWICE ON THE TRUCK. THIS IS WORSE. *TR”

“THE ABS ON MY '04 COLORADO IS ACTIVATING AT LOW OR MEDIUM SPEEDS WITHOUT APPLYING THE BRAKE. IF TRAVELING AT SLOW SPEED, AS IN A PARKING LOT, ABS WILL BE ACTIVATED ALMOST CONSTANTLY. THIS IS VERY ANNOYING AND CAN ACTUALLY BE A SAFETY HAZARD WHEN ATTEMPTING TO COME TO A NORMAL STOP. *TR”

“ABS FAULT WARNING LIGHTS UP ON COMPLETELY DRY ROADS CAUSING TEMPORARY LACK OF STOPPING FORCE, ESPICALLY AT SLOW SPEEDS. HAVE HAD NEAR MISS DUE TO THIS FAULT. *TR”