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.
MAINSHAFT Speed Sensor: Removal
2004 Acura 3.5RLSECTION Removal
- Mainshaft speed sensor is located on transaxle. See Figure . Pull carpet back on passenger's side. Disconnect secondary HO2S harness connector located under passenger's seat.
- Remove exhaust pipe and catalytic converter. Remove heat shields. Place jack under transaxle, and take weight off mounts and support beam. Remove shift cable bracket and transaxle support beam.
- Lower transaxle with jack. Remove bolt, speed sensor washer, mainshaft speed sensor and "O" ring.
RENDER: 1.0x
NO RELATED
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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.