Chevy used to make a good truck,there adding to many computers and trying to make them a .car.i have been stranded twice. the low engine power and traction loss comes on and the truck will only do about 15 miles an hr. this is very dangerous on snow covered roads, you traveling down the road and suddenly you lose power and traction, i was almost smashed in the rear end by another car. the newer the models get the more trouble I have! Can you suggest any modifications or improvements, (Silverado 2008 Z71, 181k miles, different parts from local truck center).