Acura TSX Timing Belt or Chain (All Years 2004-2014)

The Acura TSX is a compact luxury sedan sold in the U.S. market from 2004 through 2014. A Sport Wagon body style was added for 2011 through 2014. The TSX spanned two generations and offered two distinct engine configurations across its production run.

Timing system identification is essential for this model because the U.S.-market TSX uses two different timing system types depending on engine. The four-cylinder engine uses a timing chain, while the V6 engine uses a timing belt requiring scheduled replacement at a manufacturer-specified interval.

Scheduling the wrong service or missing a required belt replacement can result in engine damage on an interference engine. Correct identification by engine and model year must occur before any timing-related service is performed.

Does the Acura TSX Have a Timing Belt or Timing Chain?

The Acura TSX uses a timing chain on all four-cylinder models and a timing belt on all V6 models. The V6 engine was available in sedan trim from 2010 through 2014. Always verify by installed engine before scheduling timing system service.

2014 Acura TSX Timing Belt Or Timing Chain

Engine 1: 2.4L DOHC 4-Cylinder (K24Z3) – Sedan and Sport Wagon

Engine 2: 3.5L SOHC V6 (J35Z6) – Sedan Only

The 2014 model year is the last for the Acura TSX. Four-cylinder models continue with the K24Z3 timing chain, while V6 sedan models retain the J35Z6 timing belt configuration and 105,000-mile replacement schedule.

2013 Acura TSX Timing Belt Or Timing Chain

Engine 1: 2.4L DOHC 4-Cylinder (K24Z3) – Sedan and Sport Wagon

Engine 2: 3.5L SOHC V6 (J35Z6) – Sedan Only

No timing system revisions were made for 2013. Both the four-cylinder chain and V6 belt configurations carry forward unchanged, with the same published replacement interval for the J35Z6 as prior model years.

2012 Acura TSX Timing Belt Or Timing Chain

Engine 1: 2.4L DOHC 4-Cylinder (K24Z3) – Sedan and Sport Wagon

Engine 2: 3.5L SOHC V6 (J35Z6) – Sedan Only

Owners of the 2012 V6 sedan should confirm which timing system is present before service, as the four-cylinder and V6 use entirely different timing architectures. Misidentification can lead to missed belt replacement on an interference engine.

2011 Acura TSX Timing Belt Or Timing Chain

Engine 1: 2.4L DOHC 4-Cylinder (K24Z3) – Sedan and Sport Wagon

Engine 2: 3.5L SOHC V6 (J35Z6) – Sedan Only

The Sport Wagon body style enters the U.S. market for 2011, offered exclusively with the K24Z3 four-cylinder and timing chain. The V6 engine and timing belt remain exclusive to the sedan configuration.

2010 Acura TSX Timing Belt Or Timing Chain

Engine 1: 2.4L DOHC 4-Cylinder (K24Z3) – Sedan

Engine 2: 3.5L SOHC V6 (J35Z6) – Sedan Only

The 2010 model year introduces the optional 3.5L V6 to the U.S.-market TSX sedan. This addition means the 2010 TSX is the first year where engine identification is required before selecting the correct timing service procedure.

2009 Acura TSX Timing Belt Or Timing Chain

The second-generation TSX launched for 2009 with the updated K24Z3 four-cylinder and retained a timing chain configuration. No V6 option was available in the U.S. market for this year, making 2009 an all-chain model year.

2008 Acura TSX Timing Belt Or Timing Chain

The K24A2 carries into the final first-generation model year without timing system changes. No scheduled timing belt service applies, but consistent oil maintenance is necessary to preserve chain tensioner and guide function at higher mileage.

2007 Acura TSX Timing Belt Or Timing Chain

Same K24A2 and timing chain as prior first-generation years. The absence of a scheduled belt interval means oil condition and maintenance history are the primary reliability factors for chain components at high mileage.

2006 Acura TSX Timing Belt Or Timing Chain

No changes to the K24A2 timing system configuration for 2006. Timing chain components require no scheduled replacement but should be inspected if cold-start rattling or camshaft timing fault codes are present.

2005 Acura TSX Timing Belt Or Timing Chain

The K24A2 continues with no published timing system changes from the 2004 launch year. No timing belt service is required at any mileage interval for U.S.-market four-cylinder TSX models.

2004 Acura TSX Timing Belt Or Timing Chain

The 2004 model year is the U.S. launch of the Acura TSX, equipped solely with the K24A2 four-cylinder and a timing chain. No timing belt variant existed in the first-generation U.S.-market lineup.

Timing Belt vs Timing Chain on the Acura TSX

A timing belt is a reinforced rubber component that synchronizes the crankshaft and camshaft on the V6-equipped TSX. It degrades through heat cycles and mileage regardless of visible condition and must be replaced at the published interval to prevent engine damage.

A timing chain performs the same synchronization function on K-series four-cylinder TSX engines. It is constructed from metal links, receives lubrication from engine oil, and carries no published replacement schedule under normal service conditions.

The maintenance difference between the two systems is significant for TSX owners. Four-cylinder models require no scheduled timing service other than oil maintenance. V6 sedan models require a timing belt replacement at 105,000 miles (168,000 km), along with the tensioner, idler pulleys, and typically the water pump.

Cost and symptom profiles also differ. V6 timing belt replacement is estimated at $500 to $900 depending on included components and labor. Timing belts often fail without audible warning. Timing chain problems on K-series engines typically produce rattling or ticking at cold startup before causing drivability or timing fault codes.

Acura TSX Timing System Maintenance

Four-cylinder TSX models use a timing chain with no manufacturer-published replacement interval. V6 sedan models (2010-2014) require timing belt replacement at 105,000 miles (168,000 km). Both systems are interference designs, meaning internal engine damage can result from timing component failure.

On K-series four-cylinder engines, rattling or ticking at cold startup can indicate chain tensioner wear or low oil pressure. These symptoms warrant inspection before the noise progresses, as continued operation with a worn tensioner risks camshaft timing deviation on an interference engine.

Engine oil quality directly affects chain durability on four-cylinder models. Deferred oil changes and incorrect viscosity cause oil starvation to the chain tensioner, VTC actuator, and chain guides. Using the manufacturer-specified oil type and change interval is the primary maintenance requirement for K24A2 and K24Z3 chain life.

V6 timing belt inspection may be appropriate when a coolant leak, oil seal leak, or overheating event is suspected near the belt area. Contamination from engine fluids accelerates rubber degradation and can cause premature belt failure before the 105,000-mile interval is reached.

Frequently Asked Questions

Does the Acura TSX have a timing belt or chain?

It depends on the engine. Four-cylinder models use a timing chain. V6 sedan models (2010-2014) use a timing belt requiring scheduled replacement at 105,000 miles.

When should the Acura TSX timing belt be replaced?

V6 TSX models require timing belt replacement at 105,000 miles (168,000 km) per Acura’s published maintenance schedule. Four-cylinder models use a timing chain and have no scheduled belt replacement.

Is the Acura TSX an interference engine?

Yes. Both the K-series four-cylinder and the J35Z6 V6 are interference engines. Timing component failure on either engine can cause valve and piston contact and severe internal damage.

Does the Acura TSX timing chain need to be replaced?

No scheduled replacement interval is published for the K24A2 or K24Z3 chain. Replacement is performed on condition, based on symptoms such as cold-start rattling or camshaft timing fault codes.

What other components should be replaced with the TSX timing belt?

The tensioner, idler pulleys, and water pump should be replaced at the same service visit. These components share the same labor access and wear at a comparable rate to the belt itself.

How much does Acura TSX timing belt replacement cost?

V6 TSX timing belt service typically ranges from $500 to $900 or more, depending on labor rates and whether ancillary components including the tensioner, pulleys, and water pump are included.

Conclusion

The Acura TSX uses two distinct timing system types across its production run. Four-cylinder models across all years (2004-2014) use a timing chain with no scheduled replacement. V6 sedan models (2010-2014) use a timing belt requiring service at 105,000 miles (168,000 km).

Engine identification before scheduling any timing service is essential, as the maintenance requirements for these two systems are entirely different. Both engine types are interference designs, meaning timing component failure carries significant risk of internal engine damage.

Always verify timing system details using the owner’s manual or manufacturer service information before scheduling repairs.