GVWR: Class 2G: 8,001 - 9,000 lb (3,629 - 4,082 kg)
Make: GMC
Manufacturer: GENERAL MOTORS LLC
Manufacturer Id: 984
Model: Sierra
Model Year: 1999
Other Engine Info: Iron
Plant City: Pontiac
Plant Company Name: Gm Truck Group
Plant Country: United States (USA)
Plant State: Michigan
Series: Conventional Cab
Trim: 3/4 ton nominal
Vehicle Type: TRUCK
Model year
COMPONENT
Complaint
2006
POWER TRAIN
I HAVE A 2006 GMC SIERRA 2500 WITH THE LBZ DURAMAX AND ALLISON TRANSMISSION. TWO OF THE TRANSMISSION COOLANT LINES BEGAN LEAKING TRANSMISSION FLUID AT THE CRIMP ENDS IN DEC OF 2010. THE TRUCK ONLY HAD 30,000 MILES, BUT WAS THE 36 MONTH WARRANTY PERIOD. SERVICE UNDER WARRANTY WAS DENIED. AN ON-LINE SEARCH REVEALS SEVERAL OTHERS HAVE COMPLAINED ABOUT THIS ISSUE AND THAT THE DEALER INSTALLED OEM REPLACEMENT LINES ARE NO BETTER (DEVELOPING LEAKS SOON AFTER REPLACEMENT), YET NO TSB OR CORRECTIVE ACTION HAS BEEN ISSUED BY GM. LEAKING TRANSMISSION FLUID IS A FIRE AND ENVIRONMENTAL HAZARD. THE LEAKS ARE GETTING WORSE. *TR
1999
TIRES
TL*THE CONTACT OWNS A 1999 GMC SIERRA WITH FTS WESTLAKE TIRES. WHILE DRIVING 40 MPH THE VEHICLE WOULD SHAKE AND VIBRATE. THE SERVICE MGR STATED THAT THE TIRES WERE OUT OF SPECIFICATION AND THEY WOULD BE UNABLE RESOLVE THE TIRE ISSUES. THE CURRENT AND FAILURE MILEAGES WERE 102,000.