The Acura TSX, produced between 2009 and 2014, is well regarded for its balance of performance, comfort, and reliability. However, like any vehicle, its engine can eventually require replacement due to wear, high mileage, or internal damage. Replacing the engine is a big task, but with proper planning and the right parts, it can restore your TSX to peak performance. At Power Engines, we provide road-legal, OEM-spec replacement engines designed to make this process smoother and dependable.
Preparation and Tools Required
Gather essential tools before you begin: an engine hoist, hydraulic jack, jack stands, complete socket and wrench sets, torque wrench, pliers, screwdrivers, drain pans, and protective gloves. Replacement fluids such as engine oil, coolant, and transmission fluid will be needed. Park your TSX on a level surface, disconnect the battery, and allow the car to cool before starting.
Step 1: Remove the Hood and Drain Fluids
Unbolt the hood to gain complete access to the engine bay. Drain the engine oil, coolant, and transmission fluid into proper containers. Safe disposal of old fluids is essential to keep the workspace clean.
Step 2: Disconnect Wiring and Fuel Lines
Label and disconnect wiring harnesses, sensors, and vacuum lines. Relieve pressure in the fuel system and carefully disconnect fuel lines. Document connections with photos or tape markers to ensure accuracy during reassembly.
Step 3: Remove Accessories and Cooling System
Detach the alternator, starter, A/C compressor, and power steering pump. If possible, secure the A/C and steering pumps to the side without disconnecting their lines. Remove the radiator, fans, and coolant hoses to create more clearance for the engine removal.
Step 4: Disconnect Exhaust and Transmission
Unbolt the exhaust manifold from the engine and catalytic converter. Support the transmission with a jack, then remove the bolts securing the engine to the transmission. For automatic TSX models, disconnect torque converter bolts; for manuals, remove the clutch assembly.
Step 5: Unbolt Motor Mounts and Remove the Engine
Unbolt the motor mounts from both sides. Attach chains to the engine’s lifting points and carefully use the hoist to extract the engine from the bay. Double-check that all hoses, wires, and mounts are disconnected before lifting.
Step 6: Prepare the Replacement Engine
Transfer reusable parts such as the intake manifold, exhaust manifold, sensors, and brackets from the old engine to the replacement unit. Replace all gaskets, seals, and belts at this stage to ensure long-term reliability. Power Engines replacement engines are built to OEM specifications and designed to be road-legal, ensuring perfect fitment and compliance with emissions standards.
Step 7: Install the New Engine
Lower the new engine into the bay with the hoist, aligning it with the motor mounts and transmission. Torque bolts to manufacturer specifications. Reconnect the exhaust, transmission, and all accessory components.
Step 8: Reconnect Wiring, Fuel, and Cooling Systems
Reinstall wiring harnesses, fuel lines, and vacuum hoses. Refit the radiator, fans, and hoses. Fill with fresh oil, coolant, and transmission fluid. Ensure all clamps and connections are tight.
Step 9: Test and Break-In
Reconnect the battery and turn the ignition to ON without starting to prime the fuel system. Start the engine and let it idle, checking for leaks, unusual noises, or dashboard warnings. Let it reach normal operating temperature. For the first 500 miles, avoid high RPMs and aggressive driving. Perform an oil change after the break-in period.
Replacing the engine in a 2009–2014 Acura TSX can be a demanding but worthwhile project. By following a careful, step-by-step process, you can restore your car’s performance and reliability. Choosing a high-quality replacement engine from Power Engines ensures your Acura runs like new, with engines built to meet OEM standards and fully road-legal. For anyone looking to extend the life of their TSX, Power Engines is the trusted partner to get the job done right.
