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Old 05-12-2013, 10:40 AM
djkslc djkslc is offline
TT Enthusiast
 
Join Date: Jun 2007
Boat: 2008 X-2 MCX
Location: West
Posts: 275
Disappointed in towing

I traded in my wife's 08 Tahoe 5.3 motor with 100k miles for a 12 gmc Yukon 5.3 l with 15k miles. I towed my 02 xstar yesterday for the first time yesterday. The tow includes a large climb over parleys summit. This gmc would not down shift the way my 08 Tahoe did. I was in tow/haul mode and had the gas pedal down all the way and the down shift took forever. I could do 65 or so up and over the summit in my 08 and I was struggling to be at 50 in the gmc due to the fact it didn't down shift to keep the speed consistent. What am I missing
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