Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSACURA2008TSX STANDARDREPAIR AND DIAGNOSISENGINE MECHANICALCOOLING SYSTEM (MECHANICAL)COOLING SYSTEMTHERMOSTAT REPLACEMENT
2008 Acura TSX Standard
Thermostat Replacement
2008 Acura TSX StandardSECTION Thermostat Replacement
- Drain the engine coolant, '04-05 models (see '04-05 MODELS ), '06-08 models (see '06-08 MODELS ).
- Remove the splash shield (see TRANSMISSION REMOVAL ).
- Remove the lower radiator hose, then remove the thermostat.
- Install the new thermostat with a new O-ring, then install the lower radiator hose.
- Install the splash shield (see TRANSMISSION INSTALLATION ).
- Refill the radiator with engine coolant, and bleed air from the cooling system with the heater valve open, '04-05 models (see step 6 ), '06-08 models (see step 6 ).
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.