Econoline E550 V10-6.8L VIN S (2003)
14. Remove and discard the O-ring seals from each fuel injector.
INSTALLATION
1. To install, reverse the removal procedure.
CAUTION: Check for fuel leakage after installation is complete.
NOTE:
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Be sure the fuel injectors and the fuel injection supply manifold are fully seated.
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Lubricate the new O-ring seals with clean motor oil.