Driveline Snap

WARNING: This page is about a different car, the 2016 Jeep Wrangler and 2015 Jeep Wrangler. However, it is still accessible from the selected car via links, so may be relevant.

A snap or clunk noise when the vehicle is shifted into gear (or the clutch engaged) can be caused by:

High engine idle speed.
Transmission shift operation.
Loose engine/transmission/transfer case mounts.
Worn U-joints or CV.
Loose spring mounts.
Loose pinion gear nut and flange.
Excessive ring gear backlash.
Excessive side gear to case clearance.

The source of a snap or a clunk noise can be determined with the assistance of a helper. Raise the vehicle on a hoist with the wheels free to rotate. Instruct the helper to shift the transmission into gear. Listen for the noise, a mechanics stethoscope is helpful in isolating the source of a noise.