2006 Chevrolet Silverado 2500 Transmission Problems

2006 CHEVY SILVERADO HD DIESEL WITH ALLISON TRANS-- TRANSMISSION COOLER LINES LEAKING, DEALER SAID THERE HAS BEEN NO KNOWN PROBLEM. I SEARCHED ONLINE AND FOUND HUNDREDS OF SIMILAR COMPLAINTS. SO I WAS FORCED TO PAY $700 TO HAVE THE LINES REPLACED, WHICH WILL PROBABLY END UP LEAKING AGAIN. THIS IS OBVIOUSLY A DEFECT, AS I HAVE 3 OTHER CHEVY TRUCKS, NONE OF WHICH HAVE EVER LEAKED FROM THE TRANS LINES, AND SOME ARE OVER 10YRS OLD. *TR

NHTSA ID

10372344

Incident

Dec 18, 2010

Mileage

23,000 mi

TRANSMISSION COOLANT LINE LEAKING. *TR

NHTSA ID

10370503

Incident

Dec 12, 2010

Mileage

52,781 mi

MY 2006 SILVERAUTO WITH THE DURMAX ENGINE AND ALISON TRANSMISSION. THE TRANSMISSION LINE HAVE BEEN LEAKING. I HAVE 60,000 MILES ON IT SO THE WARRANTY IS OUT. WHEN I TOOK IT INTO THE CHEVROLET DEALERSHIP WHERE I PURCHASED THE VEHICLE THEY WOULD NOT COVER THE LEAKS AS PART OF THE DRIVE LINE WARRANTY. WHEN I PURCHASED THE LINES FROM THE PARTS DEPARTMENT THEY INDICATED THAT THEY WERE SELLING A LOT OF THESE HOSES DUE TO LEAKS. IF THERE ARE THIS MANY LINES LEAKING I THINK CHEVROLET SHOULD REPLACE THESE FAULTY LINES AT THERE EXPENSE. ALSO I KNOW OF ONE OTHER 2007 MODEL THAT BURNED OUT THE TRANSMISSION DUE TO THESE LINES. BECAUSE THE TRANSMISSION FAILED CHEVROLET REPLACED THE TRANSMISSION AND THE LINES. *TR

NHTSA ID

10336172

Incident

Apr 15, 2010

Mileage

60,000 mi

MY 2006 DURMAX DIESEL 2500 TRUCK HAS TRANSMISSION HOSES THAT RUN FROM THE TRANSMISSION TO THE RADIATOR. THESE HOSES HAVE ALUMINUM PIECES ON EACH END AND THEY SEEP OIL AT THE JOINT WHERE THE ALUMINUM JOINS A PIECE OF RUBBER HOSE IN THE CENTRE. THEY CONTINUOUSLY LEAK TRANSMISSION OIL ON THE GROUND AT THIS CRIMP JOIN. THE COLDER THE WEATHER, THE WORSE THESE HOSES LEAK. I FEEL BECAUSE OF THE DAMAGE THIS OIL CAUSES TO OUR FISH STOCKS AND THE ENVIRONMENT THESE HOSES SHOULD BE RECALLED AND REPLACED A CHEVROLET'S EXPENSE. TO DATE SO FAR, ALL ATTEMPTS I'VE MADE TO CORRECT THIS PROBLEM, AT KELOWNA CHEVY OR HEAD OFFICE HAVE FAILED. THEY ARE NOW INTERESTED. PLEASE GIVE ADVICE. *TR

NHTSA ID

10334602

Incident

Aug 24, 2009

Mileage

80,000 mi

MY CHEVROLET 2500 HAS A FUNCTION CALLED GRADE BRAKING TO ASSIST THE BRAKES WHEN TOWING A LOAD DOWN HILL. IT HAS QUIT FUNCTIONING BUT THE DEALERS CANNOT FIGURE OUT HOW TO TROUBLESHOOT THE PROBLEM. THEY SAID SINCE NO CODES SHOW ON THE COMPUTER I HAVE TO WAIT UNTIL I HAVE A TRAILER BEHIND IT AND AM NEAR A DEALER THAT IS NEAR A STEEP GRADE TO TEST IT. THE WHOLE POINT OF THE SYSTEM IT TO KEEP THE TRUCK FROM RUNNING AWAY ON A STEEP GRADE. DOESN'T SOUND LIKE THE PLACE TO TEST IT. THERE ARE NO STEEP GRADES WITH IN 150 MILES OF ME. THERE SHOULD BE A SIMULATED TEST RUN BY THEIR COMPUTER. *TR

NHTSA ID

10304402

Incident

Sep 30, 2009

Mileage

85,000 mi

I HAD A TRANSMISSION COOLER LINE TO FAIL AND LEAK BADLY AFTER 41,000 MILES.IT WAS CAUGHT IN TIME TO PREVENT TRANSMISSION FAILURE BUT HOW ABOUT THE NEXT ONE?IT WAS REPLACED WITH A NEW PART AT THE CHEVY DEALER. *TR

NHTSA ID

10298827

Incident

Jan 8, 2010

Mileage

41,550 mi

2006 CHEVY SILVERADO 2500HD HAS DEVELOPED A TRANSMISSION COOLER LINE LEAK AT THE METALLIC COUPLER. VEHICLE ONLY HAS LESS THAN 50K MILES UNDER LIGHT LOAD CONDITIONS. NEVER TOWED ANYTHING OVER 3KLBS. I UNDERSTAND THIS IS A VERY HIGH FAIL ITEM AND EVEN THEIR IMPROVED LINES ARE LEAKING AS WELL. THIS SHOULD BE A RECALL ITEM AND REPLACED AT NO COST TO THE CUSTOMER. *TR

NHTSA ID

10297602

Incident

Dec 30, 2006

Mileage

48,625 mi

2006 2500HD, TRANSMISSION COOLER LINE LEAKING AND BOTH OIL COOLER LINES LEAKING. OIL COOLER LINES WERE REPLACED IN 2007 UNDER WARRANTY. BROUGHT TRUCK INTO DEALER TODAY, (23 NOV 2009) OIL COOLER LINES REPLACED, TRANSMISSION LINE ORDERED. DEAL SAID THAT IT IS A KNOWN PROBLEM BUT CHEVY WILL NOT RECALL. ARE THEY WAITING FOR A FIRE AND DEATH TO OCCUR? THIS IS A KNOW PROBLEM AND SHOULD BE A RECALL TO REPLACE THESE LINES AT NO COST. PAID $437 TODAY AND WILL PAY $262 ON WED. WHEN THE TRANSMISSION COOLER LINE COMES IN. THIS IS TOTALLY UNACCEPTABLE. *TR

NHTSA ID

10293316

Incident

Nov 15, 2009

Mileage

63,540 mi

LEAKING TRANSMISSION COOLER LINES. LINES CONSIST OF A FLEXIBLE SECTION SWAGED TO SECTION OF HARD LINE. THERE ARE 3 LINES TOTAL. ALL 3 HAVE A HISTORY OF LEAKAGE WHERE THE FLEXIBLE SECTION SWAGES TO THE HARD SECTION. THIS HAS BEEN A VERY COMMON OCCURRENCE REPORTED BY OTHER OWNERS WHICH CAN BE EASILY VERIFIED THROUGH NUMEROUS ONLINE FORUMS.I.E WWW.DIESELPLACE.COM. *TR

NHTSA ID

10292059

Incident

Nov 12, 2009

Mileage

27,830 mi

2006 CHEVY SILVERADO 2500 HD W/ALLISON TRANS. TRANSMISSION LEAK. TOOK TRUCK TO DEAL, DEAL FIX 1 OUT OF 3 LINES UNDER WARRANTY. 4000 MILES AFTER DEALER FIXED FIRST LINE, 2 OTHER STARTED LEAKING, DEAL WOULD NOT FIX OTHER 2 LINES STATING TRUCK WAS NO LONGER UNDER WARRANTY. GMC SHOULD RECALL THE VEHICLE BASE ON POSSIBLE FIRE. *TR

NHTSA ID

10264138

Incident

Nov 1, 2008

Mileage

35,000 mi

MY TRANSMISSION COOLER LINES WERE LEAKING AND I'M CONCERNED ABOUT IT DUE TO THE TRANSMISSION FLUID BEING A COMBUSTIBLE MATERIAL. IF THIS MATERIAL DRIPPED ONTO A HOT EXHAUST AND IGNITED WHILE PARKED IN THE "ATTACHED" GARAGE OF OUR HOME, IT COULD POSE A MAJOR SAFETY HAZARD...NOT TO MENTION IT COULD DO TO THE NEIGHBORS HOME BEING RELATIVELY CLOSE. THANK YOU FOR YOUR TIME. *TR

NHTSA ID

10221234

Incident

Mar 1, 2008

Mileage

35,000 mi

LEAKING TRANS LINES ON 06 CHEVY ALLISON TRANS. *TR

NHTSA ID

10217354

Incident

Jan 25, 2008

Mileage

44,000 mi

TRANSMISSION LINES THAT RUN FROM THE TRANSMISSION COOLER NEXT TO THE RADIATOR CONTINUE TO LEAK. THE LINES SEEM TO LEAK MORE IN COLDER CLIMATES. I AM ON MY THIRD SET IN 60 DAYS. TRANSMISSION FLUID WAS A FLAMMABLE SUBSTANCE THE LAST I KNEW. *TR

NHTSA ID

10217062

Incident

Nov 28, 2007

Mileage

42,000 mi

TRANSMISSIONS LINES ARE CONTINUING TO LEAK. HAVE BEEN TO THE DEALER TWICE THIS YEAR. DEALER HAS REPLACED COOLER LINES UNDER WARRANTY. TRUCK ONLY HAS 32000 MILES ON IT. DEALER NEEDS TO COME UP WITH A PERMANENT FIX, OR IT IS GOING TO COST THE CONSUMER A LOT OF MONEY TO KEEP HAVING THE TRANSMISSION LINES REPLACED. *TR

NHTSA ID

10217023

Incident

Jul 17, 2007

LOWER TRANSMISSION LINE LEAKING AGAIN SHORTLY AFTER BEING REPLACED WITH A NEW ONE. THIS IS HAPPENING TO VERY MANY TRUCK NUMEROUS TIMES. 2006 2500 HD DURAMAX /ALISON. *TR

NHTSA ID

10216913

Incident

Feb 4, 2008

Mileage

56,665 mi

THE ALLISON AUTOMATIC TRANSMISSION COOLER LINES ARE LEAKING. THIS POSES A FIRE HAZARD. GM NEEDS TO REDESIGN THE HOSES THAT CONNECT THE TRANSMISSION AND TRANSMISSION COOLER. MANY OTHERS ARE HAVING THIS SAME PROBLEM AND HAVE HAD THE LINES REPLACED MULTIPLE TIMES. *TR

NHTSA ID

10216868

Incident

Feb 1, 2008

Mileage

20,000 mi

I HAVE A 2006 3/4 TON PICK UP WITH THE DURAMAX DIESEL AND ALISON TRANSMISSION. IN NOVEMBER OF 2006 AT ABOUT 20K MILES, A LOW PRESSURE TRANSMISSION COOLING LINE (PART NUMBER 219989580) DEVELOPED A MAJOR LEAK AND REQUIRED REPAIR. WITHIN WEEKS, THE REPLACED LINE FAILED AND THE DEALER INFORMED US THAT MANY TRUCKS OF THE SAME DESIGN WERE FAILING FOR THE SAME PART. IT TOOK WEEKS TO GET A REPLACEMENT PART FOR GM. FEED BACK FROM OTHER GM DEALERS INDICATED THAT THE PROBLEM WAS WIDE SPREAD. WHEN A REPLACEMENT PART WAS FINALLY PROVIDED, WE WERE INFORMED BY GM WESTERN REGION SERVICE THAT A DESIGN "FIX" HAD BEEN IMPLEMENTED AND THAT THE TRUCK WAS SAFE TO DRIVE. THREE WEEKS AGO, (45,000 MILES) MY TRUCK STARTED LEAKING TRANSMISSION FLUID AGAIN. AN INSPECTION BY THE DEALER REVEALED THAT NOT ONLY THE SAME LINE WAS LEAKING AGAIN BUT THAT TWO OTHER LINES OF THE SAME DESIGN WERE ALSO LEAKING. THIS DEALER, E&L MOTORS IN KEMMERER HAD ALREADY SEEN MORE THAN A DOZEN TRUCKS IN THE PAST FEW WEEKS WITH THE SAME PROBLEM AND WAS FRUSTRATED BECAUSE REPLACEMENT LINES FROM GM WOULD START LEAKING WITHIN DAYS OF INSTALLATION. WE WERE TOLD BY THE SERVICE MANAGER THAT THERE WAS A RUMOR THAT GM WOULD BE DOING A RECALL ON THIS PART. IN THE MEAN TIME, I AM NOT GETTING ANY DIRECT INFORMATION AND THE CORRECTIVE ACTION GM IS TELLING IT'S DEALERS IS TO HAVE THE OWNER CHECK THE TRANSMISSION FLUID FREQUENTLY, A SPECIAL FLUID WHICH IS NOT AVAILABLE THROUGH ANYONE EXCEPT AN AUTHORIZED GM DEALER. RECENT CONTACTS WITH OTHER GM DEALERS HAVE EXPOSED THE SAME PROBLEM WITH "DOZENS" OF TRUCKS IN OUR AREA WHICH ARE ALSO WAITING FOR A RELIABLE REPLACEMENT PART. I USE THIS TRUCK FOR WORK. DURING THE WINTER MONTHS, MY BIGGEST CONCERN IS HAVING ONE OF THE LEAKING LINES BLOW LEAVING ME STRANDED IN FREEZING WEATHER WHERE CELL COVERAGE EVEN ON THE INTERSTATE IS NOT ALWAYS POSSIBLE. *TR

NHTSA ID

10214008

Incident

Jan 3, 2008

Mileage

20,000 mi

I OWN A 2006 CHEVROLET PICKUP TRUCK AND FOUND THAT IF YOU TURN THE KEY ONE CLIP FORWARD YOU CAN PULL THE SHIFT LEVER INTO ANY GEAR INCLUDING NEUTRAL WITHOUT STEPPING ON THE BRAKE. I CHECKED AROUND AND FOUND THAT ANY CHEVROLET TRUCK, VAN OR PICKUP ALL THE WAY BACK TO 2003 WILL DO THE SAME THING. I HEARD BUT DON'T KNOW FOR SURE THAT A YOUNG BOY WAS HURT WHEN HE TURNED THE KEY AND PULLED THE LEVER DOWN CRASHING THE TRUCK. *NM

NHTSA ID

10177881

Incident

Dec 14, 2006

Mileage

5,000 mi

I PURCHASED NEW A 2006 CHEV. SILVERADO 2500 TK (6 LITER ENG.), AT 1900 MILES THE TRANSMISSION FELT LIKE IT SLIPPED. IMMEDIATELY AFTER, UNDER LIGHT ACCELERATION, YOU GET A HIGH PITCHED NOISE COMING FROM THE TRANSMISSION. TOOK VEHICLE TO LOCAL DEALERSHIP AND WAS INFORMED THAT THE PROBLEM WAS IN THE PLANETARY GEARS OF THE TRANSMISSION AND GM INFORMED THEM THAT REPAIRS SHOULD NOT BE PERFORMED. MEANWHILE I STILL HAVE THE NOISE AND AM SERIOUSLY CONCERNED ABOUT THE DEPENDABILITY OF THE VEHICLE. *NM

NHTSA ID

10174842

Incident

Nov 18, 2006

Mileage

1,900 mi

DT*: THE CONTACT STATED WHILE THE VEHICLE WAS PARKED IN THE DRIVEWAY WITH THE GEAR SHIFT IN THE PARK POSITION, AND WITHOUT THE KEYS IN THE IGNITION, THE VEHICLE ROLLED FORWARD AND CRASHED INTO A PARKED VEHICLE. THERE WAS NO WARNING PRIOR TO THE INCIDENT AND NO INJURIES WERE SUSTAINED. THE VEHICLE SUSTAINED MINOR DAMAGE TO THE FRONT. THE POLICE WERE NOT CONTACTED. THE VEHICLE WAS INSPECTED BY THE DEALER WHO WAS UNABLE TO DUPLICATE THE PROBLEM. THE MANUFACTURER WAS NOT NOTIFIED.

NHTSA ID

10169411

Incident

Sep 24, 2006

Mileage

12,000 mi

STARTING 4 DAYS AFTER DELIVERY OF THIS NEW LIGHT DUTY TRUCK WITH DIESEL ENGINE AND 6 SPEED HEAVY DUTY AUTOMATIC TRANSMISSION, THE TRANSMISSION HAS ALMOST CONTINUALLY MALFUNCTIONED, CAUSING WHAT I BELIEVE ARE DANGEROUS CONDITIONS PUTTING MYSELF, MY PASSENGERS, OTHER DRIVERS, AND PEDESTRIANS AT RISK. THE MALFUNCTIONS INCLUDE ACTING LIKE IN NEUTRAL WHEN STARTING FROM A FULL STOP, CAUSING THE ENGINE TO REV, AND THEN THE TRANSMISSION SUDDENLY ENGAGES CAUSING THE VEHICLE TO LURCH, SIMILAR PROBLEMS AT THE TRANSMISSION SEARCHES FOR HIGHER GEARS, EVEN AT HIGHWAY SPEEDS; THE ENGAGEMENTS ARE SO HARD I BELIEVE I AM AT RISK SHOULD THIS OCCUR ON LOW TRACTION ROADS, OR ON CURVES. MOST DISTURBING IS THAT MOMENTS AFTER COMING TO A FULL STOP (FOOT OFF ACCELERATOR), THE TRANSMISSION SUDDENLY (ON NO FEWER THAN 10 OCCASIONS) SENDS A SURGE OF POWER TO THE DRIVE WHEELS CAUSING THE VEHICLE TO LURCH. I AM FEARFUL THAT THIS MALFUNCTION MAY CAUSE THE VEHICLE TO BE PROPELLED INTO A VEHICLE IN FRONT OF MY, OR WORSE, PINNING A PEDESTRIAN BETWEEN THIS VEHICLE AND A FIXED OBJECT. ALSO SHOCKING IS THAT UPON THE VEHICLE BEING RETURNED TO ME FOR THE 3RD TIME ON AUGUST 11TH, WITHIN AN 1/8 OF A MILE FORM THE DEALERSHIP, AS I APPROACHED A STOP THE VEHICLE WHEELS SUDDENLY LOCKED UP FOR A MOMENT. I RETURNED TO THE DEALERSHIP AND THE SERVICE MANAGER DROVE THE VEHICLE. HE REPEATEDLY DUPLICATED THE PROBLEM AND EXPERIMENTED BY SHIFTING INTO NEUTRAL, SHOCKINGLY, WHILE IN NEUTRAL, THE TRANSMISSION STILL SEEMED TO ENGAGE THE DRIVE WHEELS AS WE APPROACHED A STOP. ONLY 42 DAYS SINCE DELIVERY, AND THE VEHICLE HAS BEEN AT THE DEALER FOR SERVICE FOR 13 DAYS, AND HAS ALSO CONTINUED TO MALFUNCTION WHILE UNDER MY CONTROL ANOTHER 12 DAYS. I BELIEVE THE DEALER, AUTO MANUFACTURER, AND THE TRANSMISSION MANUFACTURER (WHO IS SAID TO BE PROVIDING DIRECT INSTRUCTION TO THE DEALER ON DIAGNOSTICS AND REPAIR) ARE PLACING ME AND OTHERS AT SERIOUS RISK OF INJURY. *NM

NHTSA ID

10166198

Incident

Jul 11, 2006

Mileage

400 mi