2004 GMC Envoy Brakes Problems

I JUST HAD MY BRAKES SERVICED AND MY BUSHINGS CHANGED, BUT MY ABS LIGHT STILL COMES ON. ALSO WHEN I GO TO BRAKE THE CAR STARTS TO SHAKE AND I'M GOING THE SPEED LIMIT. THE ENGINE HAS A ROUGH IDLE, AND SHUTS OFF WHEN AT A COMPLETE STOP AND WHEN THE VEHICLE IS IN MOTION. I'VE HAD MANY THINGS REPLACED ON THE VEHICLE, SUCH AS PURGE VALVE, GAS CAP. CHARCOAL CANISTER AND FUEL TANK. IN THE ENGINE THE SPARK PLUGS WERE CHANGED AS WELL AS THE COIL PACKS AND THE FUEL INJECTORS. ALONG WITH THE CAMSHAFT SENSOR. STILL GETTING P0455 AND PO0014. WON'T PASS SMOG CAN'T REGISTER VEHICLE, BUT MY ONLY MEANS OF TRANSPORTATION. 2004 GMC ENVOY XUV SLT 4DR 2WD

WHILE AT LOW SPEED I PRESS THE BRAKES TO STOP IT GOES TO STOP BUT THEN ITS LIKE THE ABS KICKS IN AND RELEASES THE BRAKES THEN I HAVE TO REPRESS THE BRAKES TO GET IT TO STOP

WHILE DRIVING ON A CITY STREET THE CAR STARTED LUGGING AND NOT DRIVING SMOOTHLY. WHEN I NEEDED TO BRAKE SHORTLY AFTER THIS HAPPENED THE BRAKE PEDAL WENT TO THE FLOOR AND I HAD NO BRAKES. I PUMPED THE BRAKES AND WAS ABLE TO STOP WITHOUT HITTING ANY ONE. I CONTINUED ABOUT 5 MILES CONTINUALLY PUMPING THE BRAKES NOT KNOWING IF THEY WOULD WORK .DURING THIS TIME THE PEDAL WOULD SOMETIMES GO TO THE FLOOR AND OTHER TIMES ALMOST GO TO THE FLOOR. THEN AS SUDDENLY AS IT STARTED IT STOPPED. BRAKES WERE BACK TO NORMAL. THIS HAPPENED PREVIOUSLY AND THE GMC MECHANIC FOUND NOTHING WRONG. SO I'M PUT BACK ON THE STREET RISKING MY LIFE AND SOMEONE ELSE'S BECAUSE THE MECHANIC SAID "IT SOMETIMES HAPPENS". THAT'S NOT ACCEPTABLE!

THE FRONT BRAKE SHOES ON AN 2004 ENVOY HAS BEEN REPLACED EVERY YEAR SINCE 2007. WILL NOT WEAR EVENLY AND CAUSES THE FRONT END TO VIBRATE WHEN APPLYING THE BRAKES. *TR

BOUGHT THE CAR 2006 WAS TWO YEARS AT THAT TIME LESS THAN A WEEK INTO REPLACED BRAKES FOR ABS FAILURE. STILL HAPPENING, TOOK IT BACK SAID EVERYTHING WAS NORMAL. WELL ABOUT TWO WEEKS AGO MY WIFE WAS GOING UP-HILL TO A STOP LIGHT HIT THE BRAKES ON SLICK PAVEMENT AND THE BRAKES LOCKED UP AND ABS DID NOT KICK IN. CAUSING MY WIFE TO TOTAL TWO VEHICLES THAT I AM NOW BEING SUED FOR ONE OF THEM. *TR

BOUGHT "CERTIFIED USED" ENVOY IN OCTOBER OF 07. TRANSMISSION COMPLETELY STOPPED AT 57K MILES 3 MONTHS AFTER PURCHASE. CHECK ENGINE LIGHT COMES ON AND OFF EVERY COUPLE DAYS(HAVE VIDEO, BUT SANDY SANSING OF PENSACOLA FLORIDA SAYS THERE NOTHING WRONG) VEHICLE JERKS AT STOPS AND STARTS. AFTER 3 TRIPS TO DEALERSHIP W/ "NOTHING WRONG" THEY FINALLY DECIDED THAT A O2 SENSOR WAS BAD AT 71K. ENVOY HAD BEEN BACK IN THE SHOP AT A COST OF 80.00 BUCKS TWICE SINCE THEN BECAUSE OF THE "CHECK ENGINE" LIGHT AND THE BRAKES ARE FAILING, THE "ABS BRAKE" LIGHT DOESN'T COME ON SO THEY SAY IT CANT BE THE BRAKES. WHEN TRYING TO STOP THE BRAKES STOP WORKING AND A SECOND LATER THEY WILL CATCH AND BEGIN TO STOP VEHICLE, AS IF THE BRAKE SYSTEM IS OBSTRUCTED AND SKIPS A FEW TIMES. THE CHECK ENGINE LIGHT FLASHES FOR THOSE FEW SECONDS BUT DOESN'T STAY ON LONG AND THEY SAY IT ISN'T THROWING ANY CODES. PROBLEM DOESN'T HAPPEN EVERYDAY SO THE DEALERSHIP HAS SAID ITS A UNFOUNDED PROBLEM. THE THERMOSTATS ASSEMBLY WITH OTHER PARTS HAVE BEEN REPLACED. HAVE ALL RECEIPTS AND DATES THAT I'VE TAKEN THIS POS INTO THE DEALERSHIP. I WILL NEVER BUY ANOTHER GMC VEHICLE. I HAVE A 10 YEAR OLD PICKUP TRUCK ALSO AND HAS ONLY BEEN IN THE SHOP ONCE. THERE'S NO EXCUSE THAT WE ARE DRIVING THESE (EXPENSIVE) UNSAFE VEHICLES!! *TR

RAINY CONDITIONS... SLICK CONDITIONS. SKIDDED WHILE TRAVELING 20-25 MPH... SKIDDED OVER THE LEFT SIDE OF MEDIAN, CORRECTED AND COULDN'T REGAIN CONTROL. >ABS BRAKES FAILED (ABS LIGHT ON DURING END OF SKID INTO CRASH). CAR LANDED IN DITCHED, 90 DEGREES ONTO PASSENGER SIDE. TOTAL LOSS TO CAR. SLIGHT INJURY TO DRIVER. >AIRBAGS NEVER DEPLOYED UPON ROLLOVER TO PASSENGER SIDE. *NM

DT*: THE CONTACT STATED INTERMITTENTLY THE VEHICLE COASTS THROUGH INTERSECTIONS WHILE THE BRAKE PEDAL IS DEPRESSED. ALSO, THE BRAKE PEDAL HAS COLLAPSED TO THE FLOOR ON OTHER OCCASIONS. IN ADDITION, THE ABS ACTIVATES ON DRY PAVEMENT. WHEN THE VEHICLE WAS TAKEN TO THE DEALERSHIP FOR THE ABS, THEY REPLACED THE CONTROL VALVE WHICH CAUSED THE BRAKE PEDAL TO HAVE MORE MOVEMENT. THE MASTER CYLINDER WAS ALSO REPLACED, BUT THIS DID NOT REMEDY THE PROBLEM. THE CONTACT FEELS IT SHOULD BE A RECALL ISSUE. WISCONSIN STATE ATTORNEY GENERAL IS WORKING TO GET WISCONSIN INCLUDED IN 14 STATE RECALL LIST. UPDATED ON 06/01/2006. *AK *TS

I BOUGHT MY GMC ENVOY IN JANUARY 2004 FOR APPROX. $42,000. THIS CAR HAS EVERYTHING. AFTER ABOUT 2 MONTHS OF THE PURCHASE, MY GPS WENT OUT AND HAD BEEN FIXED TWICE. MY BRAKES DO NOT ALWAYS WORK --SOMETIMES THEY SLIP ESPECIALLY WHEN I NEED THEM MOST -WHICH IS SCARY. GMC SAID THAT THEY HAVE HEARD ABOUT THIS PROBLEM BEFORE, BUT DID NOTHING TO RESOLVE THE PROBLEM. THE ENGINE STALLS PERIODICALLY. GMC SAID THEY DO NOT KNOW WHY. THE GAS GAUGE AND ODOMETER DO NOT WORK PROPERLY. WHEN I BROUGHT MY VEHICLE INTO NORTH COUNTY GMC DEALERSHIP IN SAN DIEGO FOR REPAIRS I MENTIONED MY GAS GAUGE DID NOT WORK ALONG WITH MANY OF THE OTHER ISSUES. AFTER THEY REPAIRED THE ODOMETER BY REPLACING THE CLUSTER, THE GAS GAUGE STILL DID NOT WORK. EVERY SINGLE TIME THESE PROBLEMS HAPPEN I AM FORCED TO PAY A $100 SERVICE CHARGE JUST SO THEY CAN LOOK AT IT AND BECAUSE I AM IN SALES, I AM ALSO FORCED TO GET A RENTAL CAR. AFTER ALL THIS, I AM STILL QUITE DISPLEASED WITH GMC. I HATE TO SAY IT BUT THEY ARE SUPPOSED TO BE THE BEST AMERICAN CAR ??PROFESSIONAL GRADE?? AND IF THIS IS TRUE I WILL NEVER BUY AN AMERICAN VEHICLE AGAIN. GMC SAID THEY WOULD BE CHECKING ON ALL THESE PROBLEMS AND EVERY SINGLE TIME I PICKED MY ENVOY UP AFTER THEY SUPPOSEDLY FIXED THE PROBLEMS, I FOUND SEVERAL ISSUES STILL UNRESOLVED. THEY SUGGEST I NEED TO SET ANOTHER MEETING TO BRING MY ENVOY IN AND OF COURSE WILL COST ANOTHER $100. *NM

WHEN CONTACT COMES TO A YIELD SIGN TRANSMISSION JERKS BEFORE GOING INTO GEAR. LATER HE WAS TOLD THIS WAS A BRAKE PROBLEM. WHEN APPROACHING A HILL/DOWNHILL AND APPLYING BRAKES THEY LOCK AND CAR SLIDES.*AK DOZENS OF TIMES CHECK BRAKE, SERVICE 4 WHEEL DRIVE LIGHTS HAVE COME ON. CONTACT HAS TAKEN VEHICLE TO DEALER OVER 12 TIMES SINCE IT HAS BEEN PURCHASED. DUE SERVICE LIGHTS, BRAKES AND TRANSMISSION. CONSISTENTLY TOLD BY DEALER THAT NOTHING IS WRONG. BUT DEALER AKNOWLEDGES CHECK BRAKE LIGHTS HAVE COME ON. DEALER STATES THAT IF COMPUTER DIAGNOSTIC DOES NOT PRODUCE AN ERROR CODE, THEN THERE IS NOTHING THEY CAN DO.