Some Nissan Altima owners report experiencing acceleration issues characterized by slow and hesitant movements, shuddering noises, sudden drops in speed, and delays in acceleration. Additionally, some owners note shaking or vibrations at 60mph, which may result from unbalanced or damaged tires, worn-out brake components, engine or transmission problems, engine misfiring, damaged axles, or broken motor mounts. Furthermore, a sulfur smell reported by some owners can indicate potential issues with the catalytic converter, fuel system, or exhaust leaks, which may lead to poor engine performance and harmful emissions. To address these concerns, it is recommended that owners have their vehicles inspected by a qualified mechanic, check tire and brake conditions, inspect the engine and transmission for underlying issues, and investigate the fuel system for any leaks or problems. Prompt attention to these symptoms is crucial to ensure safety and prevent further damage to the vehicle.
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