1999 GMC Sierra transmission problems

POWER TRAIN

BRAKE FLUID LEAKING ALL OVER BOTTOM OF TRUCK SPRAYING OUT I TOOK TO A MECHANIC AND HAD 1000 DOLLAR BRAKE LINE JOB DONE GOT TRUCK BACK AND ABS BRAKES WORKED LIKE MANUAL BRAKES HAD A SENSOR AND 2 BALL JOINTS REPLACED IM BEING RIPPED OF FROM A GMC LOYAL CUSTOMER I WAS I GUESS BACK TO FORD OR TOYOTA FOR MY NEXT NEW TRUCKS I HAD WARRANTY ISSUES YOU CHEAP [XXX] WOULDNT PAY FOR A WATERPUMP THAT WAS LEAKING ONLY A 7 DOLLAR GASKET ALSO HAD A TRANSMISSION ON MY WORK VAN REPAIR AND THEN REPLACED AFTER A MONTH OF RUN AROUND. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

NHTSA complaint #10562371 — an unverified report by a vehicle owner.

POWER TRAIN

NP8 ACTUATOR MOTOR FAILURE.

NHTSA complaint #10427067 — an unverified report by a vehicle owner.

POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT

GAS TANK GAUGE WORKS ONCE IN A WHILE. OUR MECHANIC SAID IT WAS PROBABLY DUE TO MOISTURE. ALSO, THE REAR DIFFERENTIAL COVER IS EITHER CRACKING OR RUSTING THROUGH. I PUT A NEW GASKET ON IT AND THE NEXT DAY IT WAS LEAKING AGAIN BUT NOT AT THE GASKET. ABOUT 1/3 UP FROM THE BOTTOM, YOU CAN SEE WHERE FLUID IS LEAKING THROUGH THE COVER. I CALLED 2 DEALERS (1 CHEVROLET, 1 GMC). THEY BOTH GAVE ME NUMBERS TO OTHER DEALERS (1 IN PA., 1 IN IA., 1 IN UPPER MI.). THE TWO OUT OF STATE DEALERS TOLD ME THAT THE PART WAS FOR A CUSTOMER AND WOULD NOT SELL IT. THE ONE IN MI. ALSO SAID THAT, IN ADDITION TO "THAT MUST BE A POPULAR PART, BECAUSE I'VE HAD EVERY DEALER IN THE COUNTRY CALL ME." IS THIS PART A DEFECTIVE PIECE?

NHTSA complaint #10135006 — an unverified report by a vehicle owner.

POWER TRAIN:AUTOMATIC TRANSMISSION

DT: 1999 GMC SIERRA 1500. WHILE DRIVING THE TRUCK FOR ABOUT 45 MINUTES TO AN HOUR AND IF STOPPING AT A STOP SIGN OR RED LIGHT THE TRUCK WILL NOT SHIFT FROM FIRST GEAR TO SECOND GEAR PROPERLY. ONCE THE TRUCK DOES SHIFT IT IS A VERY HARD SHIFT, AND IF ON WET OR SLIPPERY SURFACES THE TRUCK WILL SQUALL THE TIRE. THIS STARTED AROUND 60, 000 MILES. THIS DOES NOT HAPPEN EVERY TIME, IT IS HIT OR MISS. WHILE PULLING ACROSS THREE LANES OF TRAFFIC THE TRUCK SHIFTED PROPERLY AND WAS ALMOST HIT BY ON COMING CARS. TOOK VEHICLE TO THE DEALERSHIP, AND THEY SAID IT WAS THE TRANSMISSION. IT WAS A COMMON PROBLEM WITH GMC TRUCKS. THERE IS A KIT THAT IS MADE TO FIX THIS PROBLEM, BUT TRANSMISSION MUST BE REPLACED AND THE REPAIR COST IS BETWEEN $700 - $1,800. THIS HAPPENS 4 TO 5 TIMES A WEEK. *AK

NHTSA complaint #10132115 — an unverified report by a vehicle owner.

POWER TRAIN:AUTOMATIC TRANSMISSION

WHILE ATTEMPTING A THREE POINT TURN ACROSS A ROAD THE AUTOMATIC TRANSMISSION BEGAN GRINDING AFTER PUTTING THE VECHILE IN REVERSE. I WAS IN THE LANE FACING ONCOMING TRAFFIC WHEN THIS OCCURRED. THE REVERSE GEAR NO LONGER FUNCTIONED. FORTUNETLY THERE WAS NO ONCOMING TRAFFIC AND I WAS ABLE TO PUT THE VECHILE IN DRIVE AND STRAIGHTEN IT OUT, GETTING BACK TO THE PARKING LANE. THE VECILE ONLY HAS 49,000 MILES. IN THE RESEARCH I HAVE DONE ON THE PROBLEM SO FAR I HAVE DISCOVERED THAT THE AUTOMATIC TRANSMISSION FAILING IS A COMMON PROBLEM. FOR EXAMPLE, A MAN NAMED CHUCK WHO WORKS AT ALL-WORLD TRANSMISSION (262-547-0136) SAYS THESE VECHILES COME IN ALL THE TIME WITH THE SAME TRASNMISSION PROBLEM. GMC CLAIMS IT IS A NOT A SAFETY ISSUE AND WILL NOT ISSUE A RECALL. I BEG TO DIFFER. I HAD MY WIFE AND 5 MONTH OLD DAUGHTER IN THE TRUCK. IF THERE HAD BEEN A CAR COMING, I MIGHT HAVE BEEN IN TROUBLE.

NHTSA complaint #10127477 — an unverified report by a vehicle owner.

POWER TRAIN:AUTOMATIC TRANSMISSION

TRANSMISSION HESITATES BADLY TO SHIFT 2-3, WHEN COLD OUT

NHTSA complaint #10123699 — an unverified report by a vehicle owner.

POWER TRAIN:AUTOMATIC TRANSMISSION

I COMPLAINED TO GMC DIRECTLY ABOUT ABS FAILURE AND REPORTED IT TO ATTY. GEN OF NYS.I WAS TOLD ITS NORMAL WEAR IN STATES WITH SALT, FUNNY THAT THE PAINT IS GOOD TO THIS DAY

NHTSA complaint #10119614 — an unverified report by a vehicle owner.

POWER TRAIN

TODAY WHILE TRYING TO PARK MY TRUCK, I PULLED INTO A PARKING SPOT AND WAS GOING TO BACK UP, WHEN I HEARD A WHIRRING NOISE. I PUT THE TRUCK BACK IN NEUTRAL,NOISE WAS GONE, BACK IN REVERSE NOISE HAS RETURNED. NO REVERSE. I ABANDONED PARKING AND DROVE HOME. I HAD ALL FORWARD GEARS. WHEN I RETURNED HOME, I PUT THE TRUCK IN PARK..... NO PARK THE TRUCK ROLLED AHEAD AND ALMOST HIT ANOTHER VEHICLE. CALLED GMC, WAS TOLD TO TAKE TO DEALER. SERVICE MANAGER SAID THE PROBLEM WAS THE REACTION SUN GEAR AND SHELL INTERNAL IN TRANSMISSION. VERY COMMON PROBLEM. THIS IS MORE THAN JUST A FAILED TRANSMISSION, ITS A SAFETY ISSUE WITH NO PARK IN TRANSMISSION. GMC BASICALLY TOLD ME I AM S.O.L., AND WOULD NOT ACKNOWLEDGE THE PROBLEM WITH NO PARK AND THAT SAFETY ISSUE.

NHTSA complaint #10070942 — an unverified report by a vehicle owner.

POWER TRAIN:AUTOMATIC TRANSMISSION

GMC SIERRA HAS BEEN IN SHOP TO MANY TIMES TO KEEP TRACK OF. TRUCK ALSO HAS A PROBLEM WITH STICKY THROTTLE BODY WHICH HAS BEEN DANGEROUS.GMC GAVE EXTENDED WARRANTY IN 2000 BACAUSE OF PROBLEMS ALSO ISSUED CUSTOMER APPRECIATION CERTIFICATE IF I WANTED TO BUY NEW GM PRODUCT.SERVICE MANAGER TOLD ME TO CUT MY LOSSES AND BUT A NEW ONE.GMC WILL NOT DO A THING FOR ME. CONTACTED NYS ATTN. GENERAL ABOUT PROBLEMS.GMC NOW HAS THEIR LEGAL CORE CALLING ME AT HOME . I HAVE ASKED THEM TO BUY VEHICLE BACK RESEARCH THE PARTS AND ASSEMBLY TO PROTECT OTHER OWNERS. GMC SAYS SORRY . I ASKED THEM HOW THEY COULD WARRANTY RUST THRU FOR 100,000 BUT COULD NOT PROTECT ABS FROM CORROSION, GMC RESPONSE WAS HEY YOU LIVE IN NEW YORK STATE. AND THEY ARE UNDER NO FINANCIAL OBLIGATION WHAT SO EVER

NHTSA complaint #765939 — an unverified report by a vehicle owner.

POWER TRAIN:AUTOMATIC TRANSMISSION

TRUCK JAMMED ON BRAKES AND SHIFTED INTO REVERSE WITH NO WARNING DUE TO THE ECM (BRAIN) MALFUNCTIONING. PLEASE DESCRIBE DETAILS.

NHTSA complaint #8014925 — an unverified report by a vehicle owner.

POWER TRAIN:MANUAL TRANSMISSION

WHILE CROSSING A THREE LANE HIGHWAY, TRANSMISSION DISENGAGES AND ALMOST CAUSED A SERIOUS ACCIDENT.

NHTSA complaint #785822 — an unverified report by a vehicle owner.

POWER TRAIN:DRIVELINE:DRIVESHAFT

THE POWER STEERING PUMP DRIVESHAFT BROKE, CAUSING LOSS OF STEERING & LOSS OF POWER ASSISTED BRAKES WHILE TOWING A 2 HORSE TRAILER . ON THIS SIZE VEHICLE IT IS EXTREMELY DIFFICULT TO STEER OR STOP EVEN AT SLOW SPEED.THIS IS THE SECOND TIME THIS HAS HAPPENED. THE FIRST WAS 09/10/2000, ALSO PULLING A TWO HORSE TRAILER.THE SERVICE MANAGER HAS TOLD ME THEY HAVE HAD TO REPLACE SEVERAL OF THESE PUMPS BECAUSE OF THE SHAFT BREAKING.THE PUMP ASSEMBLY # IS E9050. IF THIS WERE TO HAPPEN AT HIGHWAY SPEED THE RESULTS COULD BE CATASTROPHIC.THERE IS NO INDICATION OR WARNING THAT THIS HAS HAPPENED UNTILL YOU TRY TO STEER OR STOP.IN AN EMERGENCY THAT MAY BE TO LATE.

NHTSA complaint #759216 — an unverified report by a vehicle owner.

POWER TRAIN:MANUAL TRANSMISSION

WHILE CROSSING A THREE LANE HIGHWAY, TRANSMISSION DISENGAGES AND ALMOST CAUSED A SERIOUS ACCIDENT.

NHTSA complaint #785822 — an unverified report by a vehicle owner.

POWER TRAIN:MANUAL TRANSMISSION

VEHICLE HARD TO SHIFT FROM PARK, SHIFT CABLES WERE REPLACED WITH SOP CABLES.

NHTSA complaint #562324 — an unverified report by a vehicle owner.

POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT

EVER SINCE CONSUMER HAS OWNED THIS VEHICLE WITH 48,000 MILES ON IT AT TIME OF PURCHASE, THROTTLE WOULD STICK WHEN PUSHING DOWN ON ACCELERATOR PEDAL. THIS DEFECT OCCURRED MOSTLY DURING LOW SPEEDS, APPROXIMATELY 2 TO 3 TIMES A WEEK. DEALERSHIP WAS EXAMINING WHEEL BEARINGS. DEALER STATED THAT THROTTLE BODY NEEDED TO BE REPLACED.

NHTSA complaint #886315 — an unverified report by a vehicle owner.

POWER TRAIN:DRIVELINE:DRIVESHAFT

THROTTLE BODY STICKS WHILE DRIVING. HAD BUILT UP DIRT AND VARNISH. THIS CAUSED VEHICLE TO LUNGE FORWARD WHEN PRESSING ON PEDAL. DRIVETRAIN MAKES A CLUNKING NOISE DUE TO A LACK OF LUBRICATION. THIS CAN CAUSE TEETH NOT TO MESH CORRECTLY

NHTSA complaint #885277 — an unverified report by a vehicle owner.

POWER TRAIN:AUTOMATIC TRANSMISSION

REAR END VIBRATES DUE TO MISALIGNMENT OF DRIVE SHAFT TO AXLE. CAN'T FIGURE OUT WHY TRANMISSION SHIFTS HARD. TRIED REPLACING SEAT BELT TO FIX TIGHTENING ON BUMP.

NHTSA complaint #742681 — an unverified report by a vehicle owner.

POWER TRAIN:AXLE ASSEMBLY

REAR END VIBRATES DUE TO MISALIGNMENT OF DRIVE SHAFT TO AXLE. CAN'T FIGURE OUT WHY TRANMISSION SHIFTS HARD. TRIED REPLACING SEAT BELT TO FIX TIGHTENING ON BUMP.

NHTSA complaint #742681 — an unverified report by a vehicle owner.

POWER TRAIN:AUTOMATIC TRANSMISSION

PERIODICALLY TRANSMISSION WOULD SKIP A GEAR, CAUSING ENGINE TO OVERRISE. PLEASE PROVIDE ADDT'NL INFORMATION.

NHTSA complaint #883581 — an unverified report by a vehicle owner.

POWER TRAIN:DRIVELINE

THERE WAS A CLUNK IN THE DRIVELINE. NLM

NHTSA complaint #559502 — an unverified report by a vehicle owner.

POWER TRAIN:DRIVELINE:DRIVESHAFT

WOULD BE DRIVING AND REMOVING FOOT FROM GAS PEDAL FOR A SHORT WHILE. WOULD THEN DEPRESS ON GAS PEDAL, AND IT MADE A LOUD METALLIC BANG. WOULD SOUND LIKE METAL AGAINST METAL. TOOK TO DEALER & MECHANIC LUBRICATED DRIVESHAFT. WAS WORKING FINE UNTIL LEAVING DEALERSHIP. HAVE BEEN IN TO DEALER TEN TIMES FOR PROBLEM , AND IT'S NOT RESOLVED.

NHTSA complaint #879626 — an unverified report by a vehicle owner.

POWER TRAIN:AUTOMATIC TRANSMISSION

MAIN COMPLAINT IS TRANSMISSION. TOOK VEHICLE IN AT 6000 MILES AND TOLD DEALER ABOUT DOWNSHIFTING PROBLEM AND MAJOR CLUNK OR BUMPING NOISE AFTER DOWNSHIFTING AFTER STARTING FROM NEAR STOP. ALSO REPORTED HARD SHIFTING. DEALER REPORTS SCAN ECM SYSTEM NO TRANS CODES AND ROADTESTED RESULTS SHOW OPERATING AS DESIGNED. DOOR LOCK BEZELS FALLING OFF. DEALER REPLACED. THIS WAS 10/20/99. TOOK VEHICLE BACK IN WITH 17102 MILES ON MAY 5/2000. COMPLAINED OF RATTLE IN PASS. DOOR. WAS REPORTED THAT REAR SEAT BELT HOLDER NOT FASTENED. REPLACED GUIDE AND COVER FOR SAFETY BELT. RATTLE IN PASS. DOOR SHOWED REGULATOR LOOSE FROM DOOR SKIN. TIGHTENED AND ALIGNED . ASK FOR CHECK IN NOISE IN DRIVER'S WINDOW, GOING DOWN, RESULTS WERE OPERATING AS DESIGNED. CK. BUMP IN REAR ON ACCL. RESULTS ON CHECKING DRIVE TRAIN: OPERATING AS DESIGNED. CONDITION NORMAL. CK. BRAKES ACTS AS IF DON'T WANT TO STOP TIMES. RESULTS WERE OPERATING AS DESIGNED. STILL NOT HAPPY WITH BRAKES! RIGHT TIRE FOUND TO BE NOT ROUND. REPLACED. TAKEN TO DEALER ON NOV. 8/2000. ACCL. STICKING AT TOP POSITION. THROTTLE BODY STICKING AND REPLACED PER BULLETIN[WHICH I NEVER RECIEVED] . HAD LABELS PLACED ON VEHOCLE ABOUT CALIPER WHEN REPLACIND DISC BRAKES ON VEHICLE. CHECK TRANS. DOWNSHIFTS AFTER COMING TO STOP THEN ACCL. MAKES TRIPPLE BUMP AND HARD SHIFTS. SCAN SYSTEM FOUND NO CODES: OPERATING AS DESIGNED. TRANS. STILL NOT RIGHT OR SHIFTING RIGHT AND BUMPING! DOOR LOCK BEZELS FALLING OUT. CHECKED BEZELA AND ALIGNED. OWNER REPORTED SOUNDS LIKE ONLY ONE HORN FUNCTIONING. LOW VOLUME RESULTS SHOWED HORN OPERATING AS DESIGNED. NOT HAPPY, THEY SEEM TO THINK I'M STUPID. REPEAT COMPLAINTS ALL IGNORED EXCEPT HORN. IT WAS FIXED!DEC. 8/2000TRAN.

NHTSA complaint #737778 — an unverified report by a vehicle owner.

POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT

WENT TO DEALERSHIP TALK ABOUT TECHICAL SERVICE BULLITEN #86-74-03 CLUNK UPON ACCELERATION(REPLACE TRANSFER CASE FLUID). DEALER CHANGED TRANSFER CASE FLUID, BUT GLUNK NOISE IS STILL THERE. THE SERVICE BULLETIN STATES CAUSE MAYBE TO SLIP-STICK CONDITION BETWEEN THE REAR PROPELLER SHAFT SLIP YOKE AND THE TRANSFER CASE OUTPUT SHAFT. THE CORRECTION, DRAIN THE TRANSFER CASE FLUID AND REFILL WITH FLUID. THIS FLUID CONTAINS A FRICTION MODIFIER THAR SHOULD ELIMINATE THE SLIP-STICK CONDTION. I FEEL THAT THIS SERVICE BULLITEN PROCEDURE DID NOT CORRECT THE CLUCK PROBLEM. I SAID, TO THE TECHNICAL MANAGER THAT THERE IS EXCESS BACKLASH BETWEEN THE CROWN-WHEEL AND PINION IN THE DIFF. PULL IT OUT AND ADJUST IT, AS IT WILL SHORTEN THE LFE OF DIFF. HE STATED THAT THERE IS NO ROOM TO ADJUST IT. I HAVE A 1992 MODEL THAT MAKES A CLUNK NOISE. I THINK MY UJOINTS ARE BEING EFFECTED BECAUSE OF THE BACKLASH. I PLACE MY TRUCK IN DRIVE THEN REVERSE I GET A SLIGHT CLUNK FEELING. IAM NOT A EXPERT, BUT I DON'T THINK THE TSB REALLY CORRECTS THE CLUNK.

NHTSA complaint #731425 — an unverified report by a vehicle owner.

POWER TRAIN:DRIVELINE:DRIVESHAFT

THE REAR ROTORS U-JOINT, CARBON BUILD UP ON THROTTLE, REPLACED WINDOW MOTOR USES 2 QTS OF OIL EVERY 400 TO 500 MILES , TRANSMISSION USES 1 QT OF OIL EVERY 20000 MILES , AIR CONDITIONER FAN DOES NOT WORK ON HIGH I BELIEVE THE THROTTLE BUILD UP IS A SAFETY ISSUE WITH THE GAS PETAL STICKING. WE HAVE A LEMON

NHTSA complaint #729268 — an unverified report by a vehicle owner.

POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT

THE REAR ROTORS U-JOINT, CARBON BUILD UP ON THROTTLE, REPLACED WINDOW MOTOR USES 2 QTS OF OIL EVERY 400 TO 500 MILES , TRANSMISSION USES 1 QT OF OIL EVERY 20000 MILES , AIR CONDITIONER FAN DOES NOT WORK ON HIGH I BELIEVE THE THROTTLE BUILD UP IS A SAFETY ISSUE WITH THE GAS PETAL STICKING. WE HAVE A LEMON

NHTSA complaint #729268 — an unverified report by a vehicle owner.

POWER TRAIN:AXLE ASSEMBLY

VEHICLE MAKES NOISE WHEN MAKING TURNS DUE TO FAULTY FRONT AXLE GREASE SEALS. NLM

NHTSA complaint #784659 — an unverified report by a vehicle owner.

POWER TRAIN:AUTOMATIC TRANSMISSION

WHEN ACCELERATING FAST, MUST LET OFF OF THROTTLE SO TRANSMISSION WILL SHIFT FROM 1-2, AND 3-4 GEARS. ALL FLUID AND FILTER WERE CHANGED, PROBLEM NOT FIXED.

NHTSA complaint #724458 — an unverified report by a vehicle owner.

POWER TRAIN:DRIVELINE

I HAVE BEEN TRYING TO GET THIS PROBLEM FIXED SINCE NOVEMBER OF 1999 WITHOUT ANY SUCCESS, IF YOU COULD OFFER ANY HELP IT WOULD BE GREATLY APPRECIATED. NO AFETY DEFECT STATED IN SUMMARY.

NHTSA complaint #723688 — an unverified report by a vehicle owner.