Acura RSX DC5
Weaknesses, engine ratings and buying advice
The Acura RSX (DC5, 2002 to 2006) is the direct successor to the Integra and remains a cult car in the North American tuning and enthusiast scene to this day. As a compact sport coupe with a high-revving four-cylinder and one of the best manual gearboxes of its era, it embodies the classic Honda philosophy in its purest form: light, precise, eager to rev. The Type-S version with its sharper engine tuning is especially prized and tends to be kept in good shape, while plain base models were often driven harder. For many, the DC5 is the last true front-drive coupe that would have deserved the Integra name.
The 2.0-liter i-VTEC (K20) is a high-revving, exceptionally durable four-cylinder that will run well past 300,000 miles when cared for. Like the entire K-series, its longevity hinges on oil pressure: the timing chain, VTC actuator, and tensioner are all oil-controlled, so clean oil changes at a tight interval are decisive. Neglected oil shows up first as VTC actuator rattle on cold starts, and over the long term as timing-chain stretch, which can trigger fault code P0341. Exhaust-camshaft wear, a leaking front crankshaft seal, and worn engine mounts with vibration are among the typical age-related items. Fundamentally, though, the K20 is a benchmark for reliability and needs no special worry as long as maintenance is kept up.
The DC5's defining weakness sits in the manual gearbox: the second-gear synchro wears prematurely, especially on hard-driven Type-S cars, showing up as grinding or a blocked shift. Third gear also tends to grind, mainly when the transmission is cold, with the same synchro problem; carbon synchros are considered the lasting fix. Beyond that, there are smaller electrical and comfort items: the window-regulator motors and mechanisms fail with a characteristic grinding noise, and the A/C compressor can fail, with replacement made costly by the need to remove the bumper, headlights, and radiator support.
Bottom line, the DC5 is a characterful, long-lived enthusiast coupe that shines with one of the best production four-cylinders ever made. When buying, focus above all on clean shift quality in second and third gear, an ear for VTC rattle, and the usual check for accident and tuning history, since many cars were driven hard or modified. An original, well-maintained DC5, ideally a Type-S, is a safe and rewarding choice that still delivers pure driving pleasure today.
Engine Overview
The Acura RSX DC5 is available with 2 engine variants — from 160 to 196 hp.
The 2.0-liter i-VTEC is a high-revving, very durable four-cylinder that lasts well beyond 300,000 km when maintained. Like the whole K-series, its longevity depends on oil pressure: the timing chain, VTC actuator and tensioner are oil-fed, so long oil-change intervals show up as chain stretch and cold-start rattle. The valvetrain has no hydraulic lash adjustment and needs periodic valve-clearance checks. Early model years were prone to exhaust cam wear and front crankshaft seal leaks. Engine mounts are a typical wear item.
- !! Timing chain stretch with P0341 from 190,000 km
With aged oil the timing chain stretches so the VTC actuator and exhaust cam lag, triggering P0341. If the tensioner rod protrudes over 13.5 mm the chain and guides are due.
Symptoms: Persistent rattle from the timing drive, check-engine light with P0341, power loss. The tensioner can let the chain skip teeth, leading to engine failure. - !! VTC actuator rattle on cold start from 170,000 km
The worn lock-pin spring in the VTC actuator makes the engine rattle briefly on cold start until oil pressure locks the actuator. A classic K-series trait that clears with oil pressure but can wear chain guides.
Symptoms: Brief rattle or grind of 1-2 seconds on cold start. With advanced wear, rough idle and a check-engine light with P0341. - !! Exhaust camshaft lobe wear from 180,000 km
A known issue especially on early model years: the exhaust camshaft lobes wear quickly with poor lubrication and damage the rocker arms. Without hydraulic lash adjustment, periodic valve-clearance checks are mandatory.
Symptoms: Ticking and clatter from the cylinder head, power loss at high revs, rough running. Incorrect valve clearance accelerates the wear.
+ 2 more engine weaknesses + vehicle weaknesses
The 2.0-liter i-VTEC is a high-revving, very durable four-cylinder that lasts well beyond 300,000 km when maintained. Like the whole K-series, its longevity depends on oil pressure: the timing chain, VTC actuator and tensioner are oil-fed, so long oil-change intervals show up as chain stretch and cold-start rattle. The valvetrain has no hydraulic lash adjustment and needs periodic valve-clearance checks. Early model years were prone to exhaust cam wear and front crankshaft seal leaks. Engine mounts are a typical wear item.
- !! Timing chain stretch with P0341 from 190,000 km
With aged oil the timing chain stretches so the VTC actuator and exhaust cam lag, triggering P0341. If the tensioner rod protrudes over 13.5 mm the chain and guides are due.
Symptoms: Persistent rattle from the timing drive, check-engine light with P0341, power loss. The tensioner can let the chain skip teeth, leading to engine failure. - !! VTC actuator rattle on cold start from 170,000 km
The worn lock-pin spring in the VTC actuator makes the engine rattle briefly on cold start until oil pressure locks the actuator. A classic K-series trait that clears with oil pressure but can wear chain guides.
Symptoms: Brief rattle or grind of 1-2 seconds on cold start. With advanced wear, rough idle and a check-engine light with P0341. - !! Exhaust camshaft lobe wear from 180,000 km
A known issue especially on early model years: the exhaust camshaft lobes wear quickly with poor lubrication and damage the rocker arms. Without hydraulic lash adjustment, periodic valve-clearance checks are mandatory.
Symptoms: Ticking and clatter from the cylinder head, power loss at high revs, rough running. Incorrect valve clearance accelerates the wear.
+ 2 more engine weaknesses + vehicle weaknesses
Vehicle Weaknesses
| Weakness | Cost | |
|---|---|---|
| Manual Transmission: 2nd Gear Synchro Wear Same issue as engine-level — 2nd gear synchro rings wear prematurely. Type S with spirited driving especially affected. Symptoms: Grinding when shifting into 2nd, worse when gearbox is cold, pops out of gear under acceleration from 120,000 km | High | |
| 3rd gear grinds and locks out Third gear grinds especially when cold. Same synchro issue as 2nd gear. Carbon synchros as permanent fix. Symptoms: Grinding to 3rd gear, occasional lockout, worse in cold from 100,000 km | High |
Top Reported Issues
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Known Problems and Issues +
A total of 9 weaknesses have been documented for the Acura RSX DC5 (2002–2006) — 5 engine-related and 4 vehicle-related. Typical issues affect Gearbox, Electronics, HVAC.
RSX (K20, 2002–2006) — Be Careful: Timing chain stretch with P0341, VTC actuator rattle on cold start, Exhaust camshaft lobe wear. Power: 160 PS.
RSX (K20, 2002–2006) — Be Careful: Timing chain stretch with P0341, VTC actuator rattle on cold start, Exhaust camshaft lobe wear. Power: 196 PS.
What to watch out for with the Acura RSX? See the detailed listing of all engine and vehicle weaknesses in the sections above.
Frequently Asked Questions
What problems and weaknesses does the Acura RSX DC5 have? +
What should I look for when buying a used Acura RSX DC5? +
Which engine is recommended? +
Which Acura RSX DC5 engine is the most fun? +
Is the Acura RSX DC5 worth buying used? +
What horsepower variants are available for the Acura RSX DC5? +
Last updated: February 2026 · All information without guarantee