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HOMESERVICE MANUALSACURA20043.5RLREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE MECHANICALMECHANICAL3.5L V6 ENGINEREMOVAL & INSTALLATIONENGINEREMOVAL
2004 Acura 3.5RL

Removal & Installation: Engine: Removal

2004 Acura 3.5RLSECTION Removal
  1. Remove hood support mount bolts. Support hood in a vertical position, and reinstall hood support in lower hole on hood. Disconnect negative battery cable. Disconnect positive battery cable, and remove battery. Remove strut brace. Remove engine cover from intake manifold. Remove intake air duct and air cleaner assembly.
  2. Remove throttle cover. Disconnect throttle and cruise control cables. DO NOT bend cables. Replace cable if kinked. Remove coolant reservoir, then remove battery tray. Remove relay box, ground cable and engine wiring harness clamps. Remove vacuum hose and clamp from underhood fuse/relay box. Remove generator cable and battery cable from underhood fuse/relay box. Remove underhood fuse/relay box.
  3. Disconnect engine wiring harness connector on left side of engine compartment. Remove connector and engine wiring harness clamp. Release fuel pressure. See FUEL PRESSURE RELEASE . Disconnect fuel feed hose and fuel return hose. Disconnect EVAP control canister hose and brake booster vacuum hose.
  4. Disconnect transmission sub-harness connector and remove wiring harness clamp. Disconnect control box connector and remove control box. Disconnect engine wiring harness connectors on right side of engine compartment. Disconnect spark plug voltage detection module connector and remove engine ground cables. Remove vacuum hoses.
  5. Loosen generator pulley mounting bolt, lock bolt and adjusting rod. Remove generator belt. Loosen idler pulley center nut and adjusting bolt. Remove A/C compressor belt. Disconnect power steering switch connector. Remove adjusting bolt, lock nut and mounting bolt. Remove power steering belt and pump. DO NOT disconnect power steering hoses.
  6. Move passenger's seat fully forward. Pull back carpet under front passenger seat, exposing secondary heated O2 sensor connector and disconnect connector. Remove radiator cap. Raise and support vehicle. Remove front wheels and engine splash shield.
  7. Drain engine coolant, engine oil, differential oil and Automatic Transmission Fluid (ATF). Reinstall drain plugs using NEW washers. Remove damper forks. Disconnect suspension lower arm ball joints. Remove axle shafts. Coat finished surfaces with oil, and cover axle shaft ends with plastic bags. Disconnect A/C compressor clutch connector, and remove A/C compressor. DO NOT disconnect A/C hoses.
  8. Disconnect Vehicle Speed Sensor (VSS) connector and remove VSS/power steering speed sensor. DO NOT disconnect fluid hoses. Remove transmission stop collars. Remove exhaust pipe "A". Remove wiring harness cover, grommet, three-way catalytic converter and heat shield. Remove and plug ATF cooler hoses and pipes.
  9. Remove shift cable cover mounting bolts. Remove A/T gear position switch harness clamp and shift control solenoid valve/linear solenoid harness connector from shift cable cover. Remove shift cable cover from transmission housing. Remove shift cable and cable holder assembly from shift cable holder base. Remove control lever from control shaft.
  10. Lower vehicle. Remove upper and lower radiator hoses and radiator. Remove heater hoses. Attach chain hoist to engine. Raise chain hoist to remove slack from chain. Remove shift cable guide bracket. Remove transmission beam. Remove transmission mount and transmission mount bracket.
  11. Lower chain hoist. Separate left and right front engine mount brackets from left and right front mounts. Separate right engine mount bracket from right engine mount and vacuum hose. Separate left engine mount bracket from left engine mount and vacuum hose.
  12. Remove all slack from chain hoist by lowering or raising. Ensure engine and transmission are free of all hoses and wiring. Slowly raise engine approximately 6". Verify engine and transmission are still free from hoses and electrical wiring. Raise engine completely and remove engine and transmission from vehicle.
NOTE: Perform the following installation procedure in specified order to eliminate excessive noise and vibration, and to prevent reduction in bushing life.
RENDER: 1.0x

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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.