The 2004 Acura TSX represents a pivotal moment in the brand's history, blending refined European driving dynamics with newfound American accessibility. This specific model year marked the second generation of the TSX, moving away from the previous Honda Civic-based chassis to a dedicated platform that allowed for a longer wheelbase and enhanced stability. Under the hood, buyers were presented with a choice that balanced performance and efficiency, primarily centered on a sophisticated 2.4-liter inline-four engine that became the signature powerplant for this generation.
2004 TSX Engine Specifications and Performance
Powering the base 2004 TSX is the K24A4, a naturally aspirated 2.4-liter four-cylinder engine that produces 160 horsepower and 161 lb-ft of torque. This unit, derived from Honda's K-series family, is mated to a smooth five-speed manual transmission or an available intelligent five-speed automatic. The manual variant offers a direct and engaging connection, making the most of the chassis tuning, while the automatic provides seamless shifting and a comfortable cruise. For the 2004 model year, the TSX Type-S trim was introduced, escalating the performance with a more aggressive K20A engine borrowed from the Civic Si, delivering 200 horsepower and 131 lb-ft of torque, a significant jump that justified its premium positioning.
K24A4 Engine Details
Displacement: 2.4L (2,354 cc)
Configuration: Inline-four, DOHC, 16-valve
Fuel System: PGM-FI (Programmed Fuel Injection)
Horsepower: 160 hp @ 5,800 rpm
Torque: 161 lb-ft @ 4,300 rpm
Design and Engineering Philosophy
Acura's approach for the 2004 TSX was to create a compact luxury sedan that didn't compromise on the driving experience. The chassis, developed alongside the Honda Accord, featured MacPherson struts in the front and a multi-link rear setup, providing a balance of comfort and sharp handling. The suspension was tuned to be firm yet compliant, absorbing road imperfections while maintaining tire contact. This engineering focus on dynamics was a core reason why the TSX garnered a loyal following, as it offered a level of engagement rarely found in its class.
Interior Comfort and Technology
Inside, the 2004 TSX moved away from the cramped feel of its predecessor, offering a cabin that was both supportive and spacious. The seats, bolstered for the Type-S, provided excellent lateral support during spirited drives, while the leather-wrapped steering wheel and shift knob added a touch of sophistication. The dashboard was driver-focused, with easy-to-read analog gauges and a central information display that showed vital data like fuel economy and outside temperature. Available features included a premium Bose audio system and a power moonroof, enhancing the sense of openness and refinement.
Fuel Economy and Practicality
One of the TSX's strongest suits was its efficiency. The base model with the K24A4 engine delivered an EPA-estimated 24 city / 32 highway mpg, making it an economical choice for daily commuting and longer trips alike. The Type-S, with its thirstier K20A engine, still managed a respectable 21 city / 29 highway mpg. The trunk offered a generous 13.6 cubic feet of cargo space, easily accommodating groceries, luggage, or golf bags. This blend of practicality and performance is a key reason the used 2004 TSX remains a sought-after purchase today.
