I am having the same problem with a 2.0 turbo engine that is covered in the extended coverage issued by GM for the 2.4 non turbo. High pressure fuel pump is failing causing damage to the timing chain and balance shaft chain. Has anyone else had this problem with the turbo engine and if so have you had any luck getting GM to cover it? I’m looking at over $2500 in repairs. Car has 44,000 miles. Just bought it 3 days ago.