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.
Overview ('07 model J35A7 engine )
The active control engine mount (ACM) system reduces the amount of engine vibration that creates engine noise which is transmitted to the passenger's compartment.
The ACM system consists of the ACM actuators, the engine mount control unit and the powertrain control module (PCM).
The PCM sends the crankshaft position (CKP) sensor information and camshaft position (CMP) sensor information to the ACM. The ACM uses this information to predict the amount of vibration created by the engine.
The ACM system then uses the ACM actuators to generate a canceling vibration that operates like the active noise control (ANC) and reduces the amount of noise and vibration in the passenger's compartment.
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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.