The  Transmission Problem 

Excessive clutch noise
Throwout bearing noises are more audible at the lower end of pedal travel. The usual causes are:

Riding the clutch
Too little pedal free-play
Lack of bearing lubrication
A bad clutch shaft pilot bearing will make a high pitched squeal when the clutch is disengaged and the transmission is in gear or within the first 2" of pedal travel. The bearing must be replaced.

Noise from the clutch linkage
is a clicking or snapping that can be heard or felt as the pedal is moved completely up or down. This usually requires lubrication.


Clutch slips
(the car does not move as it should when the clutch is engaged) This is usually most noticeable when pulling away from a standing start. A severe test is to start the engine, apply the brakes, shift into high gear and SLOWLY release the clutch pedal. A healthy clutch will stall the engine.
If it slips it may be due to:

A worn pressure plate or clutch plate
Oil soaked clutch plate
Insufficient pedal free-play
Bad waste or slave cylinder
Low fluid


Clutch drags or fails to release
The clutch disc and some transmission gears spin briefly after clutch disengagement. Under normal conditions in average temperatures, 3 seconds is maximum spin-time.
Failure to release properly can be caused by:

Too light transmission lubricant or low lubricant level
Improperly adjusted clutch linkage
Bad cylinder
Low fluid
Air in line


Low clutch life
Low clutch life is usually a result of poor driving habits or heavy-duty use.
Riding the clutch, pulling heavy loads, holding the car on a grade with the clutch instead of the brakes and rapid clutch engagement all contribute to low clutch life.


Transmission shifts hard
Common causes of hard shifting are:

Improper lubricant viscosity or lubricant level
Clutch linkage needs adjustment/ lubrication.


Transmission leaks lubricant

The general location of a leak can be found by putting a clean newspaper under the transmission overnight.

Lubricant level too high
Cracks in the transmission case
Loose or missing bolts
Drain or fill plug loose or missing
Vent hole plugged


Transmission is noisy in gear

Most problems such as this require the services of a mechanic. Causes include:

Insufficient lubricant
Worn gears (excessive end-play)
Worn bearings
Damaged synchronizers
Chipped gear teeth


Transmission is noisy in Neutral
Noises in Neutral are usually caused by:

Insufficient/ incorrect lubricant
Worn reverse idler gear
Worn bearings or gear teeth


2005 - 2007
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Transmission Repair Topics:
Manual Transmission Troubleshooting
Transmitted engine noises are amplified by the clutch housing and heard in the passenger compartment. They are usually the result of insufficient pedal free-play and can be changed by manipulating the clutch pedal.