I have a 2012 Chevy silverado 1500 5.3 liter. My transmission was slipping a little and had a ruff idle. I changed the oil filter, the oil, and gasket and put what you recommended. It worked okay for a bit graduly getting better, until it started getting worse. I changed the the throttle body position sensor and it got a little better. But now. When I drive it it shifts good and strong for about half a mile then loses all gears. Then I stop start the truck again and it does the same thing. Is my transition going out are is it something else like the mass air flow sensor are something . Please help im so lost
mileage please
186459 is milage and its an automatic trans. Obd11 says 7e8,7ea,and 7eb
7e8,7ea,and 7eb are module ID's , not trouble codes.
It sounds to me like your tranny is going out.
My truck idols high for about a good min before settling down all the while is spurts like there's water in the fuel. Also when I would come to a stop it would continue to pull hard. And would start shaking until it killed