Timing chain tensioner wear / rattling on cold start
medium- Typically appears
- 80–150k mi
- Estimated repair
- $350 – $900
2004 Acura
TSXSedan
Sedan
The 2004 Acura TSX was Honda's entry into the entry-luxury sport sedan segment, sold exclusively with a 6-speed manual or 5-speed automatic transmission mated to a 200-hp 2.4L inline-4. It was built on the same platform as the Euro-market Honda Accord and offered a level of driving engagement, interior quality, and feature content that undercut BMW and Audi on price while outgunning most Japanese competitors on refinement. This first-generation TSX (2004–2008) earned a loyal following for its willing engine, precise steering, and well-sorted suspension. It seats five, but the rear is cozy — this is really a driver's car with passenger benefits. Standard features for 2004 were generous: leather, dual-zone climate, Bose audio, and a sunroof all came standard. As a 20-year-old vehicle today, condition and maintenance history matter far more than brand reputation. Well-kept examples are still genuinely enjoyable to drive; neglected ones can get expensive quickly, especially around the timing chain and suspension.
Reliability
4/5
Verified data
Specs shown for TSX — the most common configuration.
Other trims may vary in engine, drivetrain, or fuel economy. Sign in to see your vehicle's exact specs.
Engine
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Drivetrain
FWD
Fuel
Premium gasoline
MPG
19 city / 27 hwy / 22 combined
Seats
—
Doors
—
Body
Compact Cars
Overview
AI-curatedThe 2004 Acura TSX was Honda's entry into the entry-luxury sport sedan segment, sold exclusively with a 6-speed manual or 5-speed automatic transmission mated to a 200-hp 2.4L inline-4. It was built on the same platform as the Euro-market Honda Accord and offered a level of driving engagement, interior quality, and feature content that undercut BMW and Audi on price while outgunning most Japanese competitors on refinement. This first-generation TSX (2004–2008) earned a loyal following for its willing engine, precise steering, and well-sorted suspension. It seats five, but the rear is cozy — this is really a driver's car with passenger benefits. Standard features for 2004 were generous: leather, dual-zone climate, Bose audio, and a sunroof all came standard. As a 20-year-old vehicle today, condition and maintenance history matter far more than brand reputation. Well-kept examples are still genuinely enjoyable to drive; neglected ones can get expensive quickly, especially around the timing chain and suspension.
Known for
- Engaging, rev-happy 2.4L K24 engine shared with Honda Accord Euro/Type S
- Driver-focused handling with well-tuned independent suspension
- Premium interior quality that holds up better than many competitors
- Strong long-term reliability when oil changes are not skipped
- Available 6-speed manual — rare in the luxury segment at this price
Best for
- Enthusiasts wanting a practical, reliable sport sedan on a budget
- Commuters who want a premium feel without premium repair bills
- Buyers who prioritize driving dynamics over cargo space
- Single drivers or couples — rear seat is tight for adults
Watch for
- Oil consumption and sludge if the previous owner skipped oil changes
- Timing chain tensioner wear on higher-mileage examples
- Worn front suspension bushings and ball joints — common past 100k
- Aging A/C compressor and condenser on vehicles now 20+ years old
- Rust on subframe, brake lines, and undercarriage from Wisconsin salt exposure
Common issues by mileage
6 knownVTC (Variable Timing Control) actuator noise / fault
medium- Typically appears
- 80–180k mi
- Estimated repair
- $300 – $750
Front suspension — lower control arm bushings and ball joints
high- Typically appears
- 90–150k mi
- Estimated repair
- $400 – $950
A/C compressor or condenser failure
medium- Typically appears
- 100k+ mi or age 15+ years
- Estimated repair
- $600 – $1,400
Brake line and subframe rust (Wisconsin-specific)
high- Typically appears
- Any mileage on salt-belt examples
- Estimated repair
- $300 – $1,800
Oxygen / A/F sensor failure
medium- Typically appears
- 100–160k mi
- Estimated repair
- $150 – $450
Maintenance schedule
- 1 Every 5,000 miles or 6 months Engine oil and filter change — use full synthetic 5W-30
The K24's VTC actuator and timing chain tensioner are oil-pressure sensitive. Skipping or stretching oil changes is the single most common cause of expensive TSX engine problems. Don't wait for the maintenance light on a 20-year-old car.
- 2 At every oil change — listen for cold-start rattle Timing chain tensioner inspection
A brief rattle on startup that goes away in under 3 seconds is a yellow flag. A rattle lasting longer is a red flag. Report it immediately — addressing it early avoids a much larger repair.
- 3 Every 5 years or 60,000 miles Coolant flush
Honda's blue coolant degrades and becomes acidic, attacking water pump seals and aluminum surfaces. Use Honda-spec coolant or a compatible long-life blue formula.
- 4 Every 3 years Brake fluid flush
Brake fluid is hygroscopic — it absorbs moisture over time, lowering boiling point and accelerating internal corrosion of calipers and the ABS modulator. Critical on any vehicle exposed to Wisconsin humidity and temperature swings.
- 5 Every 15,000–20,000 miles Front and rear brake inspection including rotors and hardware
Salt accelerates rotor surface rust and caliper slide pin seizure. Seized slides cause uneven pad wear and pull. This car's sporty nature also encourages harder braking.
- 6 Every 60,000–75,000 miles Spark plug replacement — use NGK Iridium or OEM spec
Iridium plugs are the correct spec for the K24A2. Running worn plugs stresses ignition coils. If coils haven't been replaced past 120k, inspect them at the same time.
- 7 Every 30,000–45,000 miles Transmission fluid change (auto: ATF-Z1 or compatible Honda ATF; manual: MTF)
Honda's automatic transmissions are fluid-sensitive. Using the wrong fluid type or running degraded fluid is a top cause of shift hesitation and premature clutch pack wear. Acura/Honda-spec fluid matters here.
- 8 Every spring after winter season Underbody rust inspection and brake line check
Lake Geneva roads see heavy salt. A 20-year-old TSX needs its brake lines, fuel lines, and subframe mounts inspected annually. Catching early rust with treatment is inexpensive; waiting until lines fail is dangerous and costly.
Always defer to the manufacturer's service manual for warranty-mandated intervals.
Cost of ownership
Annual maintenance
$700 – $1,600
Fuel
Requires premium (91+ octane) per Acura's recommendation. At ~22 MPG combined and Wisconsin gas prices, expect roughly $2,000–$2,600/year at 12,000 miles annually. Technically runs on regular but timing and power are reduced.
Insurance
Typically moderate — TSX is classified as a midsize sport sedan, not a sports car. Expect $900–$1,400/year for full coverage on a 20-year-old example depending on driver profile and zip code.
A well-maintained TSX is one of the more affordable sport sedans to own in this age bracket. Parts are widely available, share heavily with the Honda Accord, and independent shops familiar with Honda/Acura can service everything. The main financial risk is deferred maintenance — especially oil changes — which can turn a $400 timing chain job into a $3,000 engine problem. Budget for suspension refresh components (control arms, ball joints, bushings) if you're buying over 100k miles, and always factor in an undercarriage inspection for rust on any salt-belt example.
Seasonal care
Lake Geneva, WI Winter
- Switch to full synthetic 5W-30 if not already — it flows better at sub-zero temperatures and protects the VTC actuator and timing chain on cold starts
- Test the battery before first hard freeze — a 20-year-old battery is a no-go; even a 3-year-old battery should be load-tested. A weak battery hits harder at -10°F than in summer
- Fill washer fluid reservoir with -20°F or colder rated fluid — standard fluid freezes in the lines and can crack the reservoir or pump
- Inspect wiper blades and consider winter-style blades — standard blades pack with ice and streak badly in Lake Geneva winters
- Check tire tread and consider dedicated winter tires — the TSX is FWD, which helps in snow, but performance all-seasons on a sporty-tuned suspension are no substitute for winter tires on frozen roads
- Inspect brake lines and fuel lines for rust before winter — salt accumulation accelerates corrosion; coat exposed metal with rust inhibitor if lines are surface-rusty but intact
Summer
- Check tire pressure monthly — tires gain ~1 PSI for every 10°F rise in temperature; overinflation from summer heat affects handling and wear
- Inspect the A/C system early in the season — a 20-year-old system should be checked for refrigerant charge and condenser condition before the first heat wave, not during it
- Watch for heat-soak starting issues — the K24 is generally solid, but a marginal coolant temperature sensor or aging ignition coil can act up when the engine bay is hot
- Check coolant level and condition — look for discoloration or oily residue that could indicate a head gasket weep (uncommon but possible on high-mileage examples)
Comparable vehicles
2004 Infiniti
G35
RWD sport sedan at a similar used price point, more power (280 hp V6) but higher running costs and worse winter traction without AWD
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2004 Volvo
S40
FWD entry-luxury sedan, similar size and price, European feel but more expensive to repair and harder to find good independent shop support
2004 BMW
3 Series
The benchmark sport sedan of the era — more engaging RWD dynamics, but significantly higher maintenance costs and more complex electronics at this age
2004 Lexus
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Similar luxury-sport positioning, Toyota reliability pedigree, RWD, but the IS 300 is rarer, parts are pricier, and it was approaching end of generation in 2004