Overheating and/or lack of proper venting can cause the rear axle seals to leak. Excessive fluid loss can result in major damage to the rear differential assembly and/or axle bearings.
2007 Nissan Titan Problem Reports
Most Reported 2007 Nissan Titan Problem Reports
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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.
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.