Manifold, Exhaust: Inspection
WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Inspect the exhaust manifold for cracks. Measure the exhaust manifold for flatness. Place a ruler over all of the exhaust ports and insert a feeler gauge between the port flange and the ruler. Maximum deviation from flat is 0.20 mm (.008 inch).
Inspection of turbocharger mounting flange: Using a straight edge across the longest sections of the flange, measure the flatness using a feeler gauge. Warpage shall not exceed 0.1 mm (0.004 in). When measuring the exhaust manifold flanges, the total sum of exhaust flange and the turbocharger flange cannot exceed 0.1 mm (0.004 in). If this is the case, the component with the greatest warpage must be replaced.