The definition of a rule is  an official regulation, code of regulations or set practice. An example of a rule is that a red light means stop. An example of a rule is an employer demanding their employees arrive at 8am.
New injectors cost anywhere from $80-$120 apiece, making their replacement a somewhat pricey endeavor. There are three types of injector leaks-it can leak fuel into the manifold from the nozzle, it can leak fuel into the engine compartment from the fuel rail, and it can leak air (vacuum leak) from the manifold.
Fuel Pump Replacement Cost. The average cost for replacing a fuel pump in a vehicle is around $500. But wait! There are several factors that play a role in determining the actual cost. More on this, and also about the factors that cause damage to the fuel pump, have been given in this article.he model of the car plays a huge role in the cost. It goes on to determine the cost of the fuel pump as well as the labor charges. Here are a few examples. For a BMW 750i, the pump would cost around $475 and the mechanic would charge about $175, resulting in a total bill of $650.