Nissan Repair Questions? Ask a Mechanic for Answers ASAP
Hi this is david from just answers. I am here to help with your vibration problem.
It looks like you have done quite a bit of work already. Do you happen to know how many motor mounts have been replaced. Have you noticed if it vibrates more if the a/c is on or off as well and does the vibration go away as soon as you start driving?
has your mechanic verified that none of the motor mounts that's have been replaced previously have failed again. A simple test to check for a motor mount that is broken is to keep your foot on the brake pedal while the car is in gear and in a safe area, and while in drive or reverse tap the gas pedal and have someone check for excessive movement. also verify there are no oil leaks around any motor mounts because the oil can deteriorate the rubber mounts.
Your problem you are describing is indicative of bad engine or transmission mounts particularly the mount that is in front right near the radiator. when you take off from a stop light do you feel any clucking or noise from the engine area
You said the engine light was on as well? do ou happen to have a list of the codes that are stored in your cars computer?
Ok that would have nothing to do with the vibration so we will stay on track. I'm not trying to step on any bodies toes here by any means but I would recommend getting a second opinion from another automotive facility because there's honestly not much that will cause a severe vibration at idle like you describe other than a bad engine mount. Also you may have a warranty on the part if it was replaced recently.
The dirty mass air would be very unlikely because you would have issues more while driving than at idle.
Yes if there were ignition coil failures you would feel the misfires anytime the engine is running as well as having misfire/coil trouble codes stored in the ecm
Where have you taken your vehicle to get the vehicle looked at?
Theres is a small chance that you could have a problem with the torque converter locking up when in gear but once again you would have error codes stored in the transmission control module. my professional opinion still would be that there is an issue with the front engine mount that's what it sounds like going by what you are describing with your symptoms.
if the mount is broken completely yes it would do it all the time. they key to getting the problem fixed is to be able to duplicate it when it is in the repairshop.