code p0011 2014 gmc seirra

[denise0316]

When I am driving and either coast or slow down using brakes when my rpm's get down to around 1000-1500 rpm's the truck will start to skip. The code being thrown is p0011 but the dealership is telling me its the oil pump and tranny. I have never had a bad tranny feel like this and the code says nothing about an oil pump issue. These codes really arent even specific enough to narrow the search for the problem because it also lists two other things it could be. Also if it were the pump wouldnt the oil pressure sensor gauge be reading low? It stays between 40-60.