2006 GMC Sierra 2500 complaints

I OWN A 2006 GMC 2500HD DURAMAX/ALLISON CREW CAB. I TOOK OWNERSHIP IN FEB OF 2007 WITH 32K MILES. TRANSMISSION LINES WERE LEAKING AT THAT TIME. DEALER REPLACED THE LINES UNDER WARRANTY. NOW AT 100K MILES AND SAME "NEW" LINES ARE LEAKING ONCE AGAIN. THIS IS A FLAMMABLE FLUID AND CONSTITUTES A POTENTIAL FIRE HAZARD. *TR

TL*THE CONTACT OWNS A 2006 GMC SIERRA 2500. THE CONTACT HAS A MANUAL TRANSMISSION VEHICLE WITH THE WRONG HYDRAULIC FLUID IN THE CLUTCH SYSTEM. THIS COULD CAUSE THE CLUTCH TO FAIL WITHOUT WARNING. WHEN THE CONTACT DEPRESSES THE CLUTCH PEDAL, IT DOES NOT ENGAGE THE TRANSMISSION AND STOP THE VEHICLE. THE FAILURE OCCURS INTERMITTENTLY. THE CLUTCH AND ALL THE HYDRAULIC PARTS WERE REPLACED MORE THAN ONCE, BUT THE FAILURE PERSISTS. HE CALLED GMC AND WAS INFORMED THAT ALL THE VEHICLES WERE MADE WITH THE INCORRECT FLUID. THE VIN WAS UNKNOWN. THE FAILURE MILEAGE WAS 40,000.

TRANSMISSION COOLER LINE LEAKING TRANSMISSION FLUID AT AN ALUMINUM CRIMP THAT CONNECTS A RUBBER HOSE TO THE TRANSMISSION COOLER; AN INFERIOR DESIGN. AS SUCH, A TRANSMISSION OIL LEAK IS A FIRE HAZARD. I AM AWARE OF TWO CAR FIRES THAT WERE CAUSED BY LEAKING TRANSMISSION COOLER LINES. THE LAST ONE INVOLVED A FORD TAURUS STATION WAGON WHERE THE OWNER HAD THE TRANSMISSION REBUILT BY HIS LOCAL TRANSMISSION SHOP (A NATIONAL FRANCHISE TRANSMISSION REPAIR SHOP) AND THEY CROSS-THREADED THE LOWER COOLER LINE AT THE TRANSMISSION. THE TRANSMISSION FLUID LEAKED ON TO THE EXHAUST CROSS-OVER PIPE AND THE CAR BURNED TO THE GROUND ON THE SIDE OF ROAD IN THE INTERSTATE. THE OWNER'S INSURANCE COMPANY SUBROGATED AGAINST THE TRANSMISSION SHOP FOR THE DAMAGES. FORTUNATELY, NO ONE GOT HURT, BUT THEY CAME CLOSE. *TR

I HAVE A 2006 GMC 2500HD THAT HAS 31000 MILES ON IT. THE TRANSMISSION COOL ER LINES ARE LEAKING AND THE DEALER HAS BEEN NOTIFIED ABOUT THIS PROBLEM. THE NEW PARTS ARE ON BACKORDER, MEANWHILE THE TRUCK LEAKS TRANSMISSION OIL ON THE GROUND WHICH COULD BE A POTENTIAL FIRE HAZARD ALONE WITH AN ENVIRONMENTAL HAZARD. MANY GMC 2500HD OWNERS ARE HAVING THIS PROBLEM. THIS IS NOT YET A RECALL BUT NEEDS TO BE ADDRESSED. *TR

I HAVE A 2006 GMC SIERRA THAT HAS HAD TRANSMISSION LINES REPLACED AND THAT KEEP HAVING TO BE REPLACED BECAUSE OF HOSE LEAKING EVERY YEAR. *TR

WENT TO GMC DEALER BECAUSE TRUCK HAS A TRANSMISSION OIL LEAK. TECHNICIAN NOTED THAT ALL THREE TRANSMISSION OIL COOLER LINE ARE LEAKING. ACCORDING TO INTERNET FORUM (HTTP://DIESELPLACE.COM/FORUM/SHOWTHREAD.PHP?T=202078), THIS IS A KNOW DEFECT ON THE 2006 SILVERADO AND SIERRA TRUCKS EQUIPPED WITH DIESEL ENGINE AND ALLISON AUTOMATIC TRANSMISSION. SEVERAL OWNERS HAVE HAD 2 OR MORE INCIDENTS. REPLACEMENT LINES ARE NO BETTER THAN THE ORIGINALS. I AM AN ENGINEER AND HAVE BEEN INVOLVED IN VEHICLE FIRE INVESTIGATIONS IN THE PAST, SOME WERE CAUSED BY LEAKING TRANSMISSION COOLER LINES DRIPPING ON HOT EXHAUST PIPES AND MANIFOLDS. THIS IS A POTENTIAL FIRE HAZARD! THIS REQUIRES A NEW DESIGN FOR THESE TRANSMISSION OIL COOLER LINES. *TR

SUDDEN AND COMPLETE FAILURE OF BRAKES AND STEERING. STARTED VEHICLE, PLACED IN REVERSE, UNABLE TO STOP OR STEER. NO EMERGENCY ASSIST FROM ACCUMULATOR, MANUAL BRAKES ONLY. VEHICLE WAS PLACED IN NEUTRAL, THEN STOPPED WITH E-BRAKES AND SERVICE BRAKES. POWER STEERING RESERVOIR OVERFLOWING, PUDDLE ON GARAGE FLOOR OF FLUID, FLUID GUSHED WHEN CAP REMOVED. VEHICLE TOWED TO DEALER WHERE IT OPERATED NORMALLY! DEALER UNABLE TO DIAGNOSE AT TIME OF THIS WRITING. SIMILAR COMPLAINT FROM RELATIVE WITH THE EXACT SAME VEHICLE, HAD SAME THING HAPPEN 4 TIMES. HYDRO-BOOST SYSTEM ON A DIESEL 2500 HD. *TR

TL*THE CONTACT OWNS A 2006 GMC SIERRA 2500. WHILE ATTEMPTING TO EXIT A PARALLEL PARKED POSITION, THE POWER STEERING FAILED. THE STEERING WHEEL WAS ONLY ABLE TO BE TURNED ONE QUARTER TURN IN EITHER DIRECTION. THE VEHICLE WAS TAKEN TO A SERVICE DEALER ON THREE OCCASION, WHERE THEY WERE UNABLE TO DETERMINE THE CAUSE OF THE PROBLEM. THE MANUFACTURER STATED THAT WITHOUT A RECALL THEY ARE UNABLE TO REPAIR IT. THE FAILURE MILEAGE WAS 650 AND THE CURRENT MILEAGE WAS 3745.

ACCORDING TO THE DISTRICT DISTRIBUTOR REPRESENTATIVE FOR FIRESTONE HE SAID THE TERM "STONE CHIPPING" IS WHAT'S HAPPENING TO SOME OF THEIR TIRES. WHEN I LOOK AT MY TIRE, I SEE CHIPS OF RUBBER COMING OUT OF THE TIRE EVEN IN THE TREAD. *JB

DT*: THE CONTACT STATED WHILE ATTEMPTING TO EXIT A PARALLEL PARKED POSITION, THE POWER STEERING FAILED. THE STEERING WHEEL WAS ONLY ABLE TO BE TURNED ONE QUARTER TURN IN EITHER DIRECTION. THE VEHICLE WAS TAKEN TO A SERVICE DEALER, WHERE THEY WERE UNABLE TO DETERMINE THE CAUSE OF THE PROBLEM. THE MANUFACTURER WAS ALSO NOTIFIED. UPDATED 08/27/07 *TR

DT*: THE CONTACT STATED THE REAR PASSENGER WHEEL VALVE SYSTEM BLISTERED CAUSING AN AIR LEAK. THE CONTACT CHANGED THE TIRE AND THE PROBLEM RECURRED. THE VEHICLE LOST CONTROL AND WAS IN A SINGLE CAR ACCIDENT CAUSING DAMAGE TO THE VEHICLE. NO INJURIES WERE SUSTAINED.

2006 GMC SIERRA 2500 HD BRAKE PEDAL FEELS SPONGY AND HARDER TO STOP WHILE TOWING A BOAT. *KB THE HYDROBOOST SEEMS TO EMIT A HUMMING SOUND WHEN THE BRAKE PEDAL IS APPLIED. THE INCIDENT OCCURS WHEN THE TRANSMISSION TEMPERATURE REACHES 180- 190 DEGREES ACCORDING TO THE GAUGE. *JB

DT*: THE CONTACT STATED WHILE BACKING OUT OF THE DRIVEWAY AT A LOW SPEED, THE LEFT FRONT WHEEL COLLAPSED TO THE PAVEMENT WITHOUT WARNING. UPON INSPECTION, THE RIGHT FRONT TIRE WAS INTACT. THE VEHICLE WAS TOWED TO A DEALER FOR FURTHER INSPECTION. THE DEALER DETERMINED THE FRONT TIE ROD FRACTURED AND NEEDED TO BE REPLACED.

VEHICLE- 2006 GMC SIERRA 2500HD 4X4 DURAMAX/ALLISON THERE IS A VERY NOTICEABLE CLUNK/LOOSENESS IN THE STEERING. I HAVE GREASED/LUBRICATED THE WHOLE STEERING MECHANISM WITH NO REDUCTION IN THE PROBLEM. MY FEAR IS THE LOOSENESS WILL RESULT IN A COMPLETE FAILURE OR LOSS OF STEERING. PRIOR TO THAT I FEAR POOR DRIVING/MANEUVER ABILITY WHILE THIS ISSUE PERSIST. *JB

DT*: THE CONTACT STATED THE VEHICLE'S HYDROBOOST WAS TOO SMALL FOR THE TRUCK AND MADE TOO MUCH NOISE WHEN THE BRAKES OR STEERING WERE USED. THE DEALER DETERMINED THE VEHICLE HAS NO PROBLEMS, BUT THE CONTACT EXPRESSED THERE WILL BE DIFFICULTY DOING TOWING WORK PARTICULARLY GOING UPHILL AND DOWNHILL. THE VEHICLE IS ONLY TWO MONTHS OLD AND HAS BEEN DEMONSTRATING THIS PROBLEM SINCE THE BEGINNING OF THE SECOND MONTH.

DT*: THE CONTACT STATED THREE OF THE FOUR ORIGINAL TIRES HAVE GONE FLAT BECAUSE THE VALVE STEMS LEAK AIR. THE VEHICLE WAS TAKEN TO THE DEALERSHIP AND THE VALVE STEMS WERE REPLACED. *AK