2003 CHEVROLET TRAILBLAZER EXT Power Trainautomatic Transmission Problems

2003 CHEVROLET TRAILBLAZER EXT, FAILURE OF TRANSMISSION FLUID COOLING LINES DUE TO CORROSION. LOSS OF TRANSMISSION FLUID AND POSSIBLE TRANSMISSION FAILURE DUE TO LOSS. REPLACE ALL TRANSMISSION COOLING LINES (4 SECTIONS). *TR

TL*THE CONTACT OWNS A 2003 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 40 MPH. THE VEHICLE COMPLETELY STOPPED. THE TACHOMETER BEGAN TO RISE BUT THE VEHICLE WOULD NOT MOVE FORWARD OR REVERSE. HE TOOK THE VEHICLE TO A REPAIR SHOP AND WAS TOLD THAT THE SUN GEAR FAILED AND THE ENTIRE TRANSMISSION NEEDED TO BE REPLACED. HE CALLED THE DEALER AND WAS TOLD THAT THEY COULD NOT OFFER ANY ASSISTANCE. THE MANUFACTURER WAS NOT NOTIFIED. THE VEHICLE WAS BEING REPAIRED AT THE TIME OF THE COMPLAINT. THE CURRENT AND FAILURE MILEAGES WERE 65,828.

TRANSMISSION FLUID LEAK CAUSED BY CORROSION SIMILAR TO TSB #PIT-4722. FLUID SEEN ON DRIVEWAY WHEN CAR PARKED. FLUID ON UNDERCARRIAGE. TRANSMISSION OIL COOLANT LINES WILL HAVE TO BE REPLACED AT APPROXIMATELY $500 COST. DESIGN ISSUE FOR PART TO CORRODE AFTER ONLY 6 YEARS. *TR

WHILE DRIVING ON A INTERSTATE AT HIGHWAY SPEED. MY VEHICLE HAD A SUDDEN DECREASE IN FORWARD MOMENTUM. THE ENGINE RPM'S INCREASED DRAMATICALLY AND THE VEHICLE HAD UNPREDICTABLE SURGES AND LOSS OF ABILITY TO MAINTAIN SPEED. AFTER DRIVING DOWN THE BERM TO THE INTERSTATE EXIT, I NOTED A BURNING SMELL. THE SMELL WAS THAT OF TRANSMISSION FLUID THAT HAD LEAKED OUT FROM A CORRODED TRANSMISSION COOLING LINE. *TR

TRANSMISSION COOLING LINE CORROSION AND LEAK. *TR

2003 TRAILBLAZER TRANSMISSION GONE BAD (@63,000MILES) WHILE DRIVING. CAR STALLED IN THE MIDDLE OF THE STREET, LUCKY NO OTHER CAR WAS BEHIND. *TR

NO WARNING LIGHTS, NO WARNING SOUNDS. WHILE CROSSING AN INTERSECTION, TRANSMISSION WENT OUT. 0 FORWARD GEARS, REVERSE WORKS. VEHICLE JUST REACHED 82,000 MILES. SERVICED REGULARLY. *TR

THE TRANSMISSION COOLING LINES CORRODED WHICH CAUSED THE TRANSMISSION FLUID TO LEAK OUT WHILE ON A 20 MILE ROUND TRIP FROM OUR HOUSE. THE TRUCK STARTED TO RUN ROUGH AS WE PULLED IN THE DRIVEWAY AND THERE IT DIED. I HAD IT TOWED TO A LOCAL TRANSMISSION REPAIR SHOP WHERE THEY CONFIRMED THE TRANSMISSION WAS DEAD, REBUILD OR REPLACE. I PAID TO TOW IT TO THE GM DEALERSHIP WHERE I BOUGHT THE TRUCK AND THEY CONFIRMED THE TRANNY WAS DEAD. ALUMINUM COOLING LINES ROTTED OUT, DRAINED THE FLUID AND THE UNIT FRIED. THERE ARE NO WARNING LIGHTS OR MONITORING OF THIS FLUID LEVEL PER GM. THIS TRUCK HAD BEEN SERVICED BY THIS DEALERSHIP. THE SERVICE MECHANIC TOLD ME THAT THIS IS NOT A COMMON OCCURRENCE BUT THIS IS NOT RARE EITHER. HE SAID GM WILL NOT HELP WITH THE REPAIRS AND HE WAS RIGHT. I HAD THE LOCAL TRANNEY SHOP...

MY 03 EXT FIRST TRANSMISSION WENT OUT WITH JUST OVER 65K AND THEN 16MO. LATER AT 80K WENT OUT AGAIN. NO HELP FROM GM. I HAVE OWNED A 99 BLAZER AND 02 TRAILBLAZER WITH NO REAL ISSUES HOWEVER THIS 03 HAS HAD NUMEROUS FROM CRACKED GAS TANK TO CATALYTIC CONVERTER GOING OUT AS WELL AS NOW HAVING LOUD ENGINE NOISE! *TR

I OWN A 2003 CHEVY TRAILBLAZER EXT WITH 4WD. ON SEVERAL OCCASIONS THE VEHICLE HAS ROLLED AWAY WHILE IN PARK. ALSO, THE VEHICLE ON 2 SEPARATE OCCASIONS WENT FORWARD WHEN THE GEAR SELECT WAS IN REVERSE. FINALLY, ON 4 OCCASIONS THE VEHICLE PUT ITSELF IN NEUTRAL. TWICE AT SPEED AND TWICE WHILE WAITING AT TRAFFIC LIGHTS. THIS VEHICLE NEARLY RAN OVER MY 3-YEAR-OLD CHILD AND THE DEALER CLAIMS ALL OF THESE INSTANCES HAVE BEEN DRIVER ERROR. I'VE HAD IT WITH GM AND THEIR UNWILLINGNESS TO SEE ANY URGENCY WITH THIS HUGE SAFETY RELATED ISSUE. *TR

DRIVING ON VACATION TOWING CAMPER. TRIED TO ACCELERATE AND NOTHING. GOT TO GAS STATION. NO TRANS FLUID. GOT IT TO DEALERSHIP . THEY SAID TRANS BLOWN DUE TO WATER IN TRANS. DIPSTICK RUSTED INHALF. LEAK WITH HOSE CAUSED PROBLEM. GOT FIXED GM ONLY PAID 1/2 BECAUSE WE FOUGHT. HAD EXTENDED WARRANTY THEY SAID MANUFACTURER DEFECT. FOUND SERVICE BULLETIN ON INTERNET. STILL FIGHTING TO GET OUR MONEY BACK .ONLY 51,000 MILES. *TR

TRANSMISSION LINES ROTTED OUT. LOST FLUID AND TRANNY WENT SOUTH!. 1400 FOR REPAIRS!. THANKS ALOT GM. JUNK! *TR

AUTOMATIC TRANSMISSION FAILS TO SHIFT INTO SECOND. LOUD REVVING NOISE, FAILURE TO SHIFT. *TR

2003 TRAILBLAZER TRANSMISSION FAILURE. DRIVING IN THE NEIGHBORHOOD (25 MPH) HEARD A LOAD CLUNK ( LIKE SOMETHING EITHER HIT OR FELL OF THE VEHICLE), THEN A HIGH PITCHED WHINING SOUND, GOT THE VEHICLE HOME (11PM). IN THE MORNING, TO TAKE THE VEHICLE TO BE LOOKED AT FOUND THAT I HAD NO REVERSE, HAD TO PUSH IT OUT OF THE GARAGE. I HAVE A EXTENDED WARRANTY, BUT HAVE GIVEN FIRESTONE PERMISSION TO REPLACE WITH A REBUILD UNIT FROM GM. I DO NOT KNOW WHAT MY WARRANTY WILL COVER, BUT BELIEVE THAT GM SHOULD FOOT THE BILL, SINCE THIS HAD BEEN A REPORTED PROBLEM FOR THIS TRANSMISSION FOR YEARS. *TR

I WAS DRIVING HOME TO TEXAS FROM A VACATION TO VISIT FAMILY IN OKLAHOMA. ALL OF A SUDDEN WITHOUT WARNING VEHICLE'S TRANSMISSION GOT STUCK IN 3RD GEAR. THEN THE TRANSMISSION FAILED ALTOGETHER. VEHICLE LEFT ME STRANDED IN THE MIDDLE OF NOWHERE WITH MY FOUR CHILDREN. THEY ARE TELLING ME THAT THERE ARE ALOT OF PROBLEMS WITH THE TRAILBLAZER TRANSMISSIONS. *TR

MY CHEVROLET TRAILBLAZER EXT, THAT I PURCHASED 4 1/2 YEARS AGO AND IT HAS 44,000 MILES ON IT, HAS A TRANSMISSION PROBLEM. THE CHEVROLET DEALERSHIP TELLS ME THAT IT IS A 2000 FIX. I AM ANGRY AND DISAPPOINTED THAT A VEHICLE WITH RELATIVELY FEW MILES ON IT IS HAVING SUCH A MAJOR PROBLEM. *TR

I BOUGHT A USED 2003 TRAILBLAZER. I TOOK IT IN BECAUSE IT WAS HAVING ISSUES WITH THE ENGINE LIGHT COMING ON. THE ENGINE LIGHT NO LONGER COMES ON BUT THE PROBLEM HAS GOTTEN WORSE. THE TRANSMISSION SLIPS CONSTANTLY, I HAVE ONLY HAD THIS VEHICLE FOR 4 MONTHS. I AM AFRAID THIS IS GOING TO HAPPEN WHEN I AM IN THE MIDDLE OF TRAFFIC AND MY CHILDREN AND I WILL BE IN SERIOUS TROUBLE. *TR

TRANSMISSION WENT OUT AT 63,000 MILES -- CLUTCH FAN WENT OUT ALONG WITH TRANSMISSION. NO WARNING -- NOTHING. THIS SEEMS TO BE A COMMON PROBLEM WITH TRAILBLAZERS. GM SHOULD ORDER A RECALL --OVERALL EXPENSE IS OVER $2000.00 *JB

MY 2003 CHEVY TRAILBLAZER HAS A THIRD BRAKE LIGHT ACROSS THE TOP HATCH .WHILE DRIVING DOWN A BUSY HIGHWAY IT WAS FLYING LIKE A WING ON THE BACK OF MY VEHICLE LUCKILY DOT FALLING COMPLETELY OFF BUT WHEN I STOPPED IT CAME CRASHING DOWN ONTO MY WINDOW OF HATCH LUCKILY NOT BREAKING ALL I COULD DO IS BREAK IT COMPLETELY OFF SO IT WOULD NOT FLY INTO SOMEONE'S WINDSHIELD BEHIND ME I WORK WITH A LADY WITH THE SAME MAKE AND MODEL AND HERS FLEW RIGHT OFF HER LATCH CAUSING IT TO SMASH LUCKILY NO ONE WAS BEHIND HER. I ALSO HAVE IT IN THE SHOP DUE TO RUSTY CORRODED HOSES THAT WENT TO TRANSMISSION CAUSING ALL FLUID TO DRAIN ALMOST BURNING UP MY TRANSMISSION NO INDICATION LIGHTS EVER CAME ON OTHER THAN IT SKIPPING A LITTLE LUCKILY A SERVICE ENGINE LIGHT CAME ON A WEEK LATER I TOOK IT...

THE AUTOMOBILE STARTS OUT IN 2ND GEAR AND AT HIGHWAY SPEED THE TRANSMISSION HUNTS FOR THE CORRECT GEAR SHIFTING BACK AND FORTH.

WHILE DRIVING ACROSS THE WILLIAMSBURG BRIDGE I SUDDENLY LOST THE ABILITY TO ACCELERATE. THE RPM GAUGE SHOT TO THE HIGH END AND I HAD TO COAST THE VEHICLE OFF OF THE BRIDGE. I WAS TOWED TO THE DEALERSHIP WHO WITHOUT LOOKING AT IT, KNEW IMMEDIATELY THAT THE TRANSMISSION HAD FAILED. I ASKED THE SERVICE TECHNICIAN WAS THIS A COMMON PROBLEM AND HE POINTED ME TO EDMUNDS.COM TO SHOW HOW MANY POSTS THERE WERE CONCERNING THIS PROBLEM. THE DEALERSHIP "OVERHAULED" THE TRANSMISSION AND TOLD ME I SHOULD CONSIDER A TRANSMISSION COOLER. I'VE NEVER TOWED ANYTHING WITH THE VEHICLE AND AM CONCERNED THAT I AM ABOUT TO EXPERIENCE THE SAME PROBLEM, EXCEPT THIS TIME MY WARRANTY IS EXPIRED.

WE HAVE A 2003 CHEVY TRAILBLAZER AND HAVE HAD NOTHING BUT PROBLEMS WITH IT SINCE WE BOUGHT IT BRAND-NEW. IT WAS BACK IN THE SHOP WITHIN 2 MONTHS OF PURCHASING IT DUE TO NEEDING THE ENTIRE FUSE BOX REPLACED. IT HAS BEEN BACK IN FOR REPAIRS NUMEROUS TIMES FOR ENGINE FAILURE AND PROBLEMS WITH THE GAUGES. WE HAVE HAD THE ENTIRE SPEEDOMETER PANEL REPLACED AT OUR EXPENSE AND SPENT $1200 ON REPAIRS RELATED TO THE TRANSMISSION. WE RETURNED IT TO THE DEALER 2 MONTHS LATER DUE TO THE EXACT SAME DIFFICULTIES WITH THE ENGINE STALLING AND THEY TOLD US THE COMPUTER NEEDED TO BE REPROGRAMMED. WE PAID FOR THAT AND NOT ONE WEEK LATER THE VEHICLE IS CONTINUING TO STALL ON US. IT HAS BEEN EXTREMELY DANGEROUS AND IN AT LEAST ONCE CIRCUMSTANCE HAS ALMOST CAUSED AN ACCIDENT. THIS VEHICLE IS UNSAFE TO DRIVE. THE ENGINE HAS QUIT ON US...

MULTIPLE PROBLEMS WITH THIS VEHICLE WITH ONLY 40,000 MILES ON IT! POWER WINDOW ASSEMBLY BROKE AND REPAIRED TWICE ON THE SAME DOOR, INOPERABLE CLIMATE CONTROL UNIT, FRONT DASHBOARD GETS EXTREMELY HOT AT ALL TIMES, BRAKES SQUEAL ALL THE TIME (DEALER COULD NOT FIGURE IT OUT AND WAS REMEDIED WITH CERAMIC BRAKE PADS AFTER MULTIPLE ATTEMPTS), TRANSMISSION HAS POOR SHIFTING PATTERN (BULLETIN PROVIDED A NEW SHIFT PROGRAM FOR THE TRANSMISSION AND THE DEALER INSTALLED BUT IS RIGHT BACK TO IT'S ORIGINAL PROBLEM AFTER 3 MONTHS). *JB

TRAVELING UP A DRAW BRIDGE AT 50 MILES PER HOUR THE TRANSMISSION QUIT COMPLETELY, THE ENGINE WOULD REV UP BUT NO DRIVE FROM THE TRANSMISSION. FORTUNATELY, NO ONE REAR ENDED THE VEHICLE AS WE SLOWED DOWN AND BARELY MADE IT OVER THE TOP OF THE BRIDGE AND THEN COASTED DOWN ENOUGH TO GET OFF OF THE BRIDGE. THE VEHICLE WAS TOWED TO A DEALER AND THEY DETERMINED THAT THE TRANSMISSION MUST BE COMPLETELY REPLACED AT MY COST. THE VEHICLE HAS 64,000 MILES, TOO FEW FOR A TRANSMISSION FAILURE. *JB

THE INCIDENT OCCURRED WHILE DRIVING HOME AFTER DROPPING MY SON OFF AT WORK ON I-95. I WAS TRAVELING BETWEEN 65 AND 70 MPH AND PASSING A SEMI WHEN MY VEHICLE SUDDENLY AND WITH NO PRIOR WARNING SHIFTED INTO SECOND GEAR. LUCKILY I WAS ABLE TO MAINTAIN CONTROL OF MY CAR AND ABLE TO DRIVE IT THE REST OF THE WAY HOME. ON MONDAY I DROVE MY VEHICLE AS INSTRUCTED TO THE MJ SULLIVANS, THE DEALERSHIP IN WHICH I BOUGHT THE TRAILBLAZER, FOR SERVICE. I WAS THEN NOTIFIED THAT THE STATOR SUPPORT BUSHINGS IN THE TRANSMISSION FAILED AND THAT IT WOULD ACTUALLY BE CHEAPER TO REPLACE THE TRANSMISSION. INTERESTINGLY, THE NEW TRANSMISSION COMES WITH A 10YR/100K MILE WARRANTY AND MY VEHICLE HAS ONLY 69000 MILES OF HIGHWAY MILES. ASKED THE SERVICE ENGINEER ABOUT HOW UNUSUAL THIS TYPE OF FAILURE IS AND THEY TOLD ME HIGHLY CONSIDERING THE WEAR ON OTHER PARTS...

MY VEHICLE WAS TAKEN IN THE CRAIN ON SEVERAL OCCASIONS FOR THE TRANSMISSION, LEADING UP TO THIS INCIDENT. I TOOK THE VEHICLE IN TO CRAIN ON SEPTEMBER 26, AND WAS TOLD THAT THE TRANSMISSION WAS COMPLETELY GONE. OF COURSE, THEY QUOTED ME A PRICE OF $2,000.00 WHICH I FEEL THAT I SHOULDN'T BE OUT OF POCKET FOR ANYTHING BECAUSE I REPEATEDLY TOOK THE VEHICLE IN BECAUSE THE TRANSMISSION WASN'T SHIFTING PROPER. OF COURSE, THEY SENT ME ON MY WAY AND STATED THAT THERE WASN'T A MECHANICAL PROBLEM WITH THE TRANSMISSION. THE SERVICE ADVISOR PULLED ALL OF MY SERVICE TICKETS THAT SHOWED THAT THE VEHICLE WAS BROUGHT IN FOR THE TRANSMISSION....THEY THEN AGREED TO SPLIT THE AMOUNT WITH ME; HOWEVER, I FEEL AS THOUGH I SHOULDN'T HAVE TO SPLIT THE COST BECAUSE I MADE SEVERAL TRIPS TO CRAIN'S SERVICE DEPARTMENT PRIOR TO THIS LAST VISIT TO THE SERVICE DEPARTMENT. *NM

THE TRANSMISSION IS VERY SLUGGISH AT TIMES. UPON ENTERING A HIGHWAY OR PULLING OUT INTO TRAFFIC, THE VEHICLE WILL PERIODICALLY TAKE OFF VERY SLOW. IN A COUPLE INSTANCES WE WERE ALMOST HIT BY ONCOMING TRAFFIC BEFORE THE TRANSMISSION KICKED IN. UPON TAKING IT TO THE DEALER FOR THE FOURTH TIME IN LESS THAN TWO YEARS, THEY STILL INSIST THERE IS NO PROBLEM WITH THE VEHICLE BECAUSE THE ON-BOARD COMPUTER HAS NOT RECORDED ANY CODES. I'M GETTING VERY FRUSTRATED BY THIS ANSWER, BECAUSE I FEEL THE ONLY WAY THEY WILL ADMIT THE TRANSMISSION HAS A PROBLEM IS WHEN WE ARE FINALLY INVOLVED IN AN ACCIDENT, MAYBE WITH A FATALITY. I WOULD RATHER NOT GET A RESOLUTION THROUGH THIS RESULT. *AK

FRONT END LOOSE, BALL JOINTS NEEDED REPLACEMENT. DRIVER SIDE SEATBELT DEFECTIVE/TWISTED. ROTORS WARPED NEEDED REPALCEMENT. OUTSIDE DOOR HANDLE DOES NOT OPEN DOOR. DIRVER SIDE MIRROR MOVES AROUND (PROGRAMED) WITHOUT NOTICE. TRANSMISSION ENGAGES ROUGH, FEELS LIKE IT SLIPPING. TAILGATE OUT OF ALLIGNMENT, REAR SEATBELT DEFECTIVE NEEDED REPLACEMENT, 4WD LOCKED UP IN PARKING LOT, FRONT END HAS SCRAPING NOISES WHEN TURNING, HEATED SEATS NOT WORKING, IRRATIC, TAILGATE PANEL FALLS OFF, DRIVER SEAT FRAME BROKEN NEEDED REPLACEMENT,ELECTRICAL SYSTEM IRRATIC. *AK

THIS VEHICLE IS 4 MONTHS OLD AND JUST ROLLED OVER TO 7000 MILES. IT IS IN THE SHOP CURRENTLY FOR THE SIXTH TIME AND HAS NOW BEEN OUT OF COMMISSION FOR OVER 30 DAYS. IT HAS HAD MULTIPLE TRANSMISSION PROBLEMS; VALVE BODY TWICE, TORQUE CONVERTER, SHIFT SOLENOID, BTSI SOLENOID, FLOOR SHIFTER (WITH CONSOLE) ALL HAD TO BE REPLACED. IT IS IN THE SHOP NOW FOR THE 4 WHEEL DRIVE FOR THE SECOND TIME; 1ST TIME TO REPAIR PROBLEM I WAS HAVING AND REPAIRED PER SERVICE BULLETIN. OBVIOUSLY THAT DID NOT REPAIR THE PROBLEM AS I JUST HAD THE SAME PROBLEM AGAIN. THE 4WD INDICATOR LIGHT COMES ON AND THE TRUCK WILL NOT GO OUT OF A4WD UNLESS I SHUT THE TRUCK OFF AND RESTART. THE DEALER JUST CALLED AND SAID THEY HAVE TO REPLACE THE CONTROL MOTOR ? THAT GOES TO THE TRANSFER CASE. I AM MECHANICALLY CHALLENGED AND DO...