engine harshness at high revs

The electronically controlled motor mounts are usually 'soft' at <950rpm and 'hard' at >950rpm. The VQ35DE in the Altima/Maxima/Murano has a vacuum/solenoid controlled system that softens the mounts at idle

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engine harshness at high revs

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07-04-2009, 08:44 AM	#14 (permalink)
6SPD_FTW Base Member Join Date: May 2009 Location: Bristol, VA Posts: 59 Drives: 09 370Z Bl 6MT Rep Power: 16	The electronically controlled motor mounts are usually 'soft' at <950rpm and 'hard' at >950rpm. The VQ35DE in the Altima/Maxima/Murano has a vacuum/solenoid controlled system that softens the mounts at idle and hardens them at speed. The 370Z doesn't have this system. There's vacuum tubes that lead to the motor mounts that would be there and they aren't on the Z. Dunno bout fluid-filled mounts, though. Nissan used fluid-filled mounts on the transmission and front (side) motor mount on the Altima VQ. Judging by the harshness of the Z, I'd doubt there are any fluid-filled mounts on this car. Late, Trav

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