Years

The Nissan Sentra is a compact sedan that has served as an entry-level model in Nissan's lineup, positioned below the midsize Altima. Introduced in 1982 as a rebadged version of the Nissan Sunny, it has gone through eight generations, with the current generation debuting for the 2020 model year. The Sentra is typically noted for its fuel efficiency, affordability, and comfortable ride.

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  1998_Sentra_SR

  The 1998 Sentra SR used the 1.6-liter GA16DE four-cylinder engine and received minor exterior updates, including revised grille and bumper styling. The SR trim added sport-oriented equipment such as a rear spoiler, alloy wheels, and firmer suspension tuning. Because the GA16DE is an interference engine, replacing the timing belt at the recommended interval is important to prevent valve damage if the belt breaks. Higher-mileage examples may develop valve cover gasket oil leaks, oil consumption, and rust in the rocker panels and underbody.

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  2000_Sentra

  The 2000 Sentra introduced the fifth-generation B15 platform, replacing the previous B14 model with a redesigned body and a 1.8-liter QG18DE four-cylinder engine rated at 126 horsepower. It was sold only as a sedan in GXE and XE trims, with the sportier SE and SE-R variants returning in later model years. Common service considerations include monitoring oil consumption, inspecting ignition coil packs, and addressing catalytic converter efficiency codes as the vehicle ages. The engine uses a timing chain rather than a belt, so there is no scheduled timing belt replacement, though consistent oil changes remain important.

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  2006_Sentra

  The 2006 Sentra was the final year of the sixth-generation model, bringing revised front and rear styling and standard side-curtain airbags across the lineup. The SE-R Spec V used a 2.5-liter four-cylinder rated at 200 horsepower, while base models used a 2.0-liter engine with a five-speed manual or four-speed automatic. Common service items include ignition coil failures, oil consumption on higher-mileage QR25 engines, and timing chain tensioner rattle. Examples equipped with the CVT need regular transmission fluid changes, as the unit is a known wear item.

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  2008_Sentra

  The 2008 Nissan Sentra, part of the sixth generation introduced for 2007, carried over with minor updates including standard side curtain airbags and continued availability of the SE-R and SE-R Spec V trims with a 2.5-liter engine. Most trims used a 2.0-liter four-cylinder engine paired with either a six-speed manual or a continuously variable transmission (CVT). Common service considerations include regular CVT fluid changes and monitoring for transmission wear, as these units have been known to fail prematurely. The 2.0-liter engine uses a timing chain rather than a belt, and routine maintenance such as spark plug and ignition coil replacement is typical at higher mileage.

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  2004_Sentra

  The 2004 Nissan Sentra continued the fifth-generation design with only minor equipment and trim changes for the model year. Engine options included a 1.8-liter four-cylinder in base models and a 2.5-liter four-cylinder in the SE-R and SE-R Spec V trims. Common service items include ignition coil and spark plug replacement, oxygen sensor failures, and monitoring for oil consumption in the 2.5-liter engine. The 1.8-liter engine uses a timing chain rather than a belt, and periodic automatic transmission fluid changes are recommended.

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  1998_Sentra_GA

  The 1998 Nissan Sentra GA continued with the GA16DE 1.6-liter four-cylinder engine, with only minor trim and equipment changes for the model year. Because the GA16DE is an interference engine, timing belt replacement at the recommended interval is critical, as belt failure can cause severe internal engine damage. Common service items include replacing the water pump and spark plugs during timing belt work, inspecting for oil leaks around the valve cover gasket, and monitoring automatic transmission fluid condition. Routine maintenance such as coolant flushes, brake inspections, and tire rotations remains straightforward on this generation.

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  1995_Sentra

  The 1995 Sentra was redesigned with new sedan and coupe body styles, offering a 1.6-liter four-cylinder engine in most trims and a 2.0-liter engine in the SE and SE-R models. Dual front airbags became standard equipment for this model year. Common service items include timing belt replacement at the recommended interval, since both engines use belt-driven camshafts. Higher-mileage examples may also warrant attention to oil consumption, rust, and automatic transmission condition.

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  2005_Sentra

  The 2005 Nissan Sentra received minor exterior updates, including a revised front fascia, while continuing with a 1.8-liter four-cylinder engine in base trims and a 2.5-liter engine in SE-R models. Common service considerations include regular oil changes, timing chain inspection on higher-mileage 1.8-liter engines, and monitoring for oil consumption in the 2.5-liter SE-R engines. Owners should also watch for ignition coil failures, worn suspension components, and oxygen sensor degradation as the vehicle ages.

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  2003_Sentra

  The 2003 Nissan Sentra received a mild exterior restyling with revised front and rear fascias, and side-impact airbags became available on additional trim levels. Base models used a 1.8-liter four-cylinder engine, while the SE-R and SE-R Spec V carried a 2.5-liter four-cylinder paired with a six-speed manual transmission. Common service items include ignition coil failures, oxygen sensor replacement, and oil consumption on higher-mileage 2.5-liter engines. Timing chain tensioner wear and automatic transmission issues are also worth checking on older examples.

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  2002

  The 2002 Nissan Sentra was part of the fifth generation (B15) lineup and received minor updates, including the introduction of the SE-R Spec V trim with a 2.5-liter engine rated at 175 horsepower. Most trims used a 1.8-liter four-cylinder engine paired with either a five-speed manual or four-speed automatic transmission. Common service considerations include monitoring oil consumption, particularly in the 2.5-liter SE-R engine, as well as inspecting ignition coils, oxygen sensors, and suspension components as the vehicle ages. Both engines use timing chains rather than belts, and regular fluid changes are generally recommended for long-term reliability.

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  2009_Sentra

  The 2009 Nissan Sentra was largely a carryover year, with minor equipment and trim updates across the 2.0, 2.0 S, 2.0 SL, and SE-R trims. It was offered with a 2.0-liter four-cylinder engine, or a 2.5-liter in SE-R models, with most trims using Nissan's Xtronic CVT. Both engines use timing chains rather than belts, so no timing belt replacement is required, but periodic CVT fluid service is recommended due to known CVT durability concerns at higher mileage. Common service items include spark plugs (due around 105,000 miles), ignition coils, oxygen sensors, and brake components.

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  1999_Sentra_SR

  The 1999 Sentra SR used the 2.0-liter SR20DE four-cylinder engine rated at 145 horsepower, along with sport-tuned suspension and 15-inch alloy wheels. For the 1999 model year, Nissan gave the Sentra revised exterior styling and interior trim, with the SR positioned near the top of the lineup. The SR20DE engine relies on a timing belt rather than a chain, so replacement at the recommended interval, generally 60,000 to 100,000 miles, is a key maintenance item. Higher-mileage examples may develop oil consumption, ignition coil failures, or automatic transmission problems, making service history worth checking before purchase.

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  1999_Sentra_GA

  The 1999 Nissan Sentra received a mid-cycle facelift with revised front and rear styling, and the GA16DE 1.6-liter four-cylinder engine continued in base and GXE trims. The GA16DE is an interference engine, so timing belt replacement at the recommended interval is important to prevent engine damage if the belt fails. Higher-mileage examples may develop oil consumption, and routine items such as spark plugs, coolant, and transmission fluid should be checked against the factory maintenance schedule.

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  2001_Sentra

  The 2001 Nissan Sentra was the second year of the redesigned fifth-generation model, sold as a sedan with a 1.8-liter four-cylinder engine in most trims and a 2.0-liter engine in the SE-R. Changes from the 2000 model year were minor, consisting mainly of equipment adjustments across the GXE, SE, and SE-R trim levels. Common service considerations include monitoring oil consumption, replacing worn ignition coils, and maintaining the automatic transmission fluid. The 1.8-liter engine uses a timing chain rather than a belt, so timing belt replacement is not part of its maintenance schedule.

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  2007_Sentra

  The 2007 Sentra was redesigned on a new platform, growing in size and adopting a 2.0-liter four-cylinder engine rated at 140 horsepower, paired with either a six-speed manual or a continuously variable transmission. The SE-R and SE-R Spec V trims offered higher-output versions of the same engine. The CVT requires periodic fluid changes with Nissan-specified fluid, and some units have experienced transmission failures addressed under extended service agreements. The timing chain design eliminates the need for timing belt replacement, though spark plugs and ignition coils remain routine service items.

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  1996

  The 1996 Nissan Sentra was largely a carryover year for the fifth-generation B14, with only minor trim and equipment revisions and no major mechanical changes. Most trims used a 1.6-liter four-cylinder engine, while the SE-R carried a 2.0-liter engine. Both engines are interference designs, so timing belt replacement at the recommended interval is important to prevent valve damage if the belt fails. Common service considerations for higher-mileage examples include rust on the floor pans and rocker panels, worn suspension components, and the condition of the automatic transmission fluid.

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  1997_Sentra

  The 1997 Nissan Sentra was a carryover year for the fourth-generation model, with only minor trim and equipment revisions rather than significant mechanical changes. Most trims continued to use a 1.6-liter four-cylinder engine, while the SE-R retained its 2.0-liter four-cylinder. Both engines use timing belts, so following the recommended replacement interval is important on higher-mileage examples. Common service items to monitor include oil consumption, automatic transmission condition, and rust in areas that use road salt.

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  1994_Sentra

  The 1994 Nissan Sentra was the final year of the B13 generation, carrying over the 1.6L four-cylinder base engine and the 140-horsepower 2.0L SE-R with only minor trim and styling updates. Common service considerations include timely timing belt replacement, since the SR20DE engine is an interference design where belt failure can cause valve damage. Higher-mileage examples often develop oil leaks from the valve cover gasket and consume oil as they age. Rust on the rocker panels, floor pans, and undercarriage is also frequent, particularly in regions that use road salt.