Foreign Object Damage

The second most common engine installation error is damage to the new engine by a foreign object. This is generally because you’ve failed to clean the intake properly. Without a clean intake and EGR, chances are good that carbon or other debris will be sucked into the intake and damage the engine before your customer even gets to drive the car.

The simplest option here is to buy a new intake manifold, manifold gasket, EGR valve and EGR valve gasket. With new (or reman) parts, you don’t need to worry about carbon buildup or debris from your old engine, as it’s already been taken care of for you by the supplier. With that being said, not every customer is going to jump for joy at the thought of spending even more money, so cleaning the original intake is the more common option.