My vehicle had brake lines replace two times with less than 65,000 miles because breaks stop working. fuel line replaced under 55,000 miles because it made check engine light come on speedometer erratic,oil pressure gauge high and low,fuel gauge erratic under 65,000 miles. loud noise from engine service technician reported the exhaust manifold bolts has broken to call a white smoke from the motor. everything happened with consider to be low mileage in talking to gm they don't care because enough report has not been made.