Transmission cooler line leaks at crimp fittings
POWER TRAIN
13 NHTSA complaints · 2008-01 → 2015-05
“LEAKING TRANSMISSION COOLER LINES, FAILURE AT CRIMP BETWEEN RUBBER LINE AND METAL LINE, STARTED AT 11,000 MILES, REPLACED WITH NEW LINES NOW LEAKING AGAIN AT 20,000 MILES”
“AUTOMATIC TRANSMISSION LINES 2007 CHEVY SILVERADO WITH ALLISON TRANSMISSION. FACTORY TRANSMISSION LINES LEAK AND MUST BE REPLACED. WHEN THE WEATHER TURNS COLD, THE LINES/CRIMPS HOLDING THE RUBBER HOSE TO THE PIPES FAIL AND AUTOMATIC TRANSMISSION FLUID IS LOST”
“WHILE DOING ROUTINE MAINTENANCE ON THE TRUCK I NOTICED THE TRANSMISSION COOLER LINES LEAKING. THE FAILURE IS THE CAUSE OF A POOR FITTING DESIGN ON GM'S BEHALF, AND THEY HAVE NOT COMMITTED TO PROVIDING AN UPDATED PART”