A weak or failing fuel pump can cause power loss due to lower fuel pressure and lean mixture conditions. This rarely causes a Check Engine Light to illuminate and should be repaired to avoid catalytic converter damage.
2009 Nissan Armada Problem Reports
Most Reported 2009 Nissan Armada Problem Reports
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Water can cause corrosion in the connector between the engine and transmission wiring harness. The engine may crank but not start, stall, and/or the transmission may not shift correctly.