Fuel Injectors Installation

Because of the position of these injectors in relation to the fuel rail, extreme care should be taken during installation so as not to damage the oring seals. Problems with new injectors immediately after installation are almost always due to improper installation which can ruin the orings. Always inspect the orings for damage before considering the injector itself to be defective.Just prior to installation apply a small amount of petroleum based lubricate, i.e. motor oil, on the orings.

Use a rocking motion to install the oring in to the fuel rail and intake manifold. Never twist-in or "screw-in" the fuel injectors. This may cause scoring or cutting of the oring. Prior to installing fuel injectors, inspect any inline fuel filter that may be dirty and cause contamination of the new parts. If your vehicle has been stored or sat unstarted for more than several months there are many other safeguards you should take into account before replacing fuel injectors and starting the engine.