GMC Sierra 1500 Towing Advice
Hello, First time poster long time reader. I have a 2012 GMC Sierra 5.3 6speed with 3.42 gears. I have the tow package with trans cooler. I read these forums for a long time and tried to bu...
Forum Discussion
I have a 2011 Sierra 1500 with 5.3 / 3.42 / 4x4 and stock 20" rims and tires.
I pull a 30 foot 6006 lb (loaded weight) trailer and my family of 5.
The truck is AT the payload limit (1420 lbs) but well under the CVWR and max trailer rating.
The only real problem is the 6 speed transmission (the tranny is great but the computer no so much) It constantly tries to reach 6th gear and the transmission temperature goes way up. If I select manual mode and keep it confined to 4th and under the transmission temperature goes way down, it pulls easily up grades, and I hardly feel the trailer. The engine RPM is much higher then daily driving, but it is still okay. On long flats I allow it into 5th, but never 6th... gear hunts too much and temperature goes up again.
I pull a 30 foot 6006 lb (loaded weight) trailer and my family of 5.
The truck is AT the payload limit (1420 lbs) but well under the CVWR and max trailer rating.
The only real problem is the 6 speed transmission (the tranny is great but the computer no so much) It constantly tries to reach 6th gear and the transmission temperature goes way up. If I select manual mode and keep it confined to 4th and under the transmission temperature goes way down, it pulls easily up grades, and I hardly feel the trailer. The engine RPM is much higher then daily driving, but it is still okay. On long flats I allow it into 5th, but never 6th... gear hunts too much and temperature goes up again.
