Manufacturer’s Professional Repair Information for the “Car Savvy Do it Yourselfer” Over 90 years of  service.



NOTE: This is GENERAL information. This article is not intended to be specific to any unique situation or individual vehicle configuration. The purpose of this Troubleshooting information is to provide a list of common causes to problem symptoms. For model-specific Troubleshooting, refer to SUBJECT, DIAGNOSTIC, or TESTING articles available in the section(s) you are accessing.


Condition Possible Cause
Noisy In Forward Gears Low gear oil level, Loose bell housing bolts, Worn bearings or gears
Clunk On Deceleration (FWD Only) Loose engine mounts, Worn inboard CV joints, Worn differential pinion shaft, Side gear hub counterbore in case worn oversize
Gear Clash When Shifting Forward Gears Clutch Out Of Adjustment, Shift linkage damaged or out of adjustment, Gears or synchronizers damaged, Low gear oil level
Transmission Noisy When Moving (RWD Only) Quiet In Neutral With Clutch Engaged Worn rear outputshaft bearing
Gear Rattle Worn bearings, Wrong gear oil, Low gear oil, Worn gears
Steady Ticking At Idle (Increases With RPM) Broken tooth on gear
Gear Clash When Shifting Forward Gears Worn or broken synchronizers
Loud Whine In Reverse Normal condition (1)
Noise When Stepping On Clutch Bad release bearing, Worn pilot bearing
Ticking Or Screeching As Clutch Is Engaged Faulty release bearing, Uneven pressure plate fingers
Click Or Snap When Clutch Is Engaged Worn clutch fork, Worn or broken front bearing retainer
Transmission Shifts Hard Clutch not releasing, Shift mechanism binding, Clutch installed backwards
Will Not Shift Into One Gear, Shifts Into All Others Bent shift fork, Worn detent balls
Locked Into Gear, Cannot Shift Clutch adjustment, Worn detent balls
Transmission Jumps Out Of Gear Pilot bearing worn, Bent shift fork, Worn gear teeth or face, Excessive gear train end play, Worn synchronizers, Missing detent ball spring, Shift mechanism worn or out of adjustment, Engine or transmission mount bolts loose or out of adjustment, Transmission not aligned
Shift Lever Rattle Worn shift lever or detents, Worn shift forks, Worn synchronizers sleeve
Shift Lever Hops Under Acceleration Worn engine or transmission mounts
(1) Most units use spur cut gears in reverse and are noisy