NTB14060A

Classification:
Reference:
AT14-008a
Date:
NTB14-060a
November 19, 2014
NISSAN; THUNK SOUND
ON FIRST ACCELERATION OF THE DAY
This bulletin has been amended to add models to the Applied Vehicles.
Please discard the previous version.
APPLIED VEHICLE:
2012 – 2014 Maxima (A35)
2013 – 2015 Altima (L33) VQ35 engines only
2013 – 2015 Pathfinder (R52)
2013 – 2014 Murano (Z51)
SERVICE INFORMATION
A two-piece design front engine mount is currently being used for the applied vehicles
listed.
A single thunk noise may be heard on the first acceleration of the day from this type of
mount and is considered normal operation.
The mount has also been designed with built in free-play that is normal.
Under normal driving conditions:

A “thunk” noise may be heard on the first acceleration of the day.
And

Does not occur again, or at any other time.
DO NOT REPLACE THE MOUNT:

If it has free play or a “single event” thunk sound on the first acceleration of the
day. This is considered a normal characteristic of this type of engine mount.

If a shift shock condition is present when shifting from park into gear or between any
combination of gears. This condition is due to transmissions line pressures and not
movement of the mount.
NOTE: Refer to the Electronic Service Manual, section TM – Transaxle &
Transmission, for further diagnostic information on shift shock.
Nissan Bulletins are intended for use by qualified technicians, not 'do-it-yourselfers'. Qualified technicians are
properly trained individuals who have the equipment, tools, safety instruction, and know-how to do a job
properly and safely. NOTE: If you believe that a described condition may apply to a particular vehicle, DO
NOT assume that it does. See your Nissan dealer to determine if this applies to your vehicle.
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