Q: My car vibrates when I'm waiting at the light . It drives fine . And it vibrates more when I turn on the ac? Can itvtve motor moun

asked by on April 04, 2017

My car was driving fine . Well I believe it started yesterday I notice when I turn on my ac my car will vibrate so I turn it off. This morning dropping my daughter off at school I tried to turn on the ac and my car was vibrating I turned it off . It stopped but when I stopped at the light it continued to do it . It drives fine but when I stop my car will continue to vibrate. Not sure if it's the transmission or the motor mounts .

My car has 72000 miles.
My car has an automatic transmission.

There are two principal possibilities: faulty motor/transaxle mounts, or an engine operating or mechanical condition including the possibility of a faulty harmonic balancer. To obtain a conclusive diagnostic, please simply request an engine vibration diagnostic and a certified Mechanic, dispatched by YourMechanic right to your location, will get this resolved. If you do need new motor/transaxle mounts, genuine OEM Nissan mounts are recommended in order to maximize the chances of resolving the problem. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Mounts for safe jacking the car up
Yes, that is what they are for. A lot of German cars have them. They are made so that you can jack them up (https://www.yourmechanic.com/article/all-about-car-jacks-and-stands) at these safe points and not worry about anything bending or slipping. That's where you'll...
there is sediment and rust on the dipstick.
The oil dipstick may get moisture rust damage on them which is normal. Make sure you check the engine by opening the oil cap and looking inside. If you see the same rust and milky looking oil, then there was...
Problem with car dying
This is a sign of a failing idle air control valve (https://www.yourmechanic.com/services/idle-control-valve-replacement). This is a unit that is located on or near your intake manifold that monitors the air intake as it is mixed with fuel prior to being injected...
Went with bigger tires & installed a high flow filter/muffler
Anytime you make changes to the tire's overall diameter, multiple components are going to be thrown out of calibration including, ABS, speedometer and traction control. There was a time when a professional mechanic could reset ECU's, but recent changes in...
Car gets too hot before the fans come on.
This is a common sign of a faulty coolant temperature relay. This is a relay that monitors the temperature of the coolant and relays this information back to the computer which then uses this information to make many different decisions...
I need to find out the location of the Exhaust Camshaft Position Sensor Bank 1 on a 2008 Infiniti EX35.
Hello, thank you for writing in. The bank 1 camshaft position sensor is going to be located on the front of the engine. Most specifically it is going to be located right below the valve cover on the bank (or...
Charging System Failure and Battery Light on
Hi There, It sounds like you may have a voltage regulator issue that might not be allowing the alternator to charge the battery sufficiently. The voltage regulator could be allowing the alternator to supply too much or too little amperage...
How to seal an oil leak on a chevy 350?
This hole is specifically designed to be in that location and is for the oil pan dipstick. This is used to check the oil. I would suggest going to your local parts store and purchasing the correct dipstick for your...
My 2011 Dodge journey overheated and when I press the holes are the hero by where the water pump is
Hi There, It sounds like you may have a water pump that may be leaking or failing. Overheating can be caused by a number of things such as low coolant levels, a faulty thermostat (https://www.yourmechanic.com/services/thermostat-replacement), a clogged radiator (https://www.yourmechanic.com/services/radiator-replacement) or...

Related articles

A Buyer's Guide to the 2012 Nissan Quest
If If your family has gotten to the size where a minivan makes sense, you have a huge market to explore. Start with the 2012 Nissan Quest, though, and you may find that your search becomes a relatively short one....
The Best Used Cars to Buy If You’re an Interior Designer
As As an interior designer, you need to transport a great many different items, including fabric, paint and wallpaper samples and sometimes even furniture items. You probably don’t handle overly large loads very often, and when you have to, you’ll...
The Best Used Cars to Buy If You're an Uber or Lyft Driver
Are Are you thinking of becoming a driver for Uber or Lyft? That could be an exciting career change – you’ll get to meet a lot of interesting people, and if you love to drive, what better way to spend...