
Jeep Cherokee
Service Manual
Differential and driveline » Tube, 181, and 186 FBI axle » Diagnosis and testing
Driveline snap
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.
- Loose spring mounts.
- Loose pinion gear nut and yoke.
- 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.
More about «Diagnosis and testing»:
Driveline snap