Service Manuals

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The 2006 Nissan Altima was the final year of the third generation, offering a 2.5-liter four-cylinder and a 3.5-liter V6 rated at roughly 250 horsepower in the 3.5 SE trim. Updates for the model year included revised exterior styling and expanded availability of stability control. Both engines use timing chains rather than belts, reducing scheduled maintenance, though ignition coils and oxygen sensors are common wear items. Higher-mileage examples may develop oil consumption, and the four-cylinder's four-speed automatic benefits from regular transmission fluid service.

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