Cavalier/Z24 L4-138 2.3L DOHC VIN D MFI (1995)
Gear: Customer Interest
M/T - Click Noise or Gear Disengagement in Reverse
File In Section: 7 - Transmission
Bulletin No.: 67-72-04
Date: December, 1996
Subject:
Click Noise or Gear Disengagement in Reverse
(Install Revised Gear Set)
Models:
1995-96 Chevrolet Cavalier
1995-96 Oldsmobile Achieva
1995-96 Pontiac Sunfire, Grand Am
with Isuzu 5-speed Manual Transaxle (RPOs MJ1, MK7)
Condition
Some owners may comment on a clicking noise, with vehicle in motion, in the reverse gear.
You may also receive comments concerning the above transaxles with disengagement in the reverse gear.
Cause
The Isuzu transaxle uses a typical spur (straight cut) gear design in its reverse gear system. All spur gears have a potential of disengagement when
excessive loads are applied or released.
This excessive load can occur when the vehicle is driven at a high or sudden increase of speed in reverse and then the throttle is quickly released. This is
NOT a recommended driving technique.
A total or partial disengagement of the reverse gear may result in excessive backlash of the gear system. Excessive gear backlash may result in a click
noise in reverse.
While the above conditions may cause customer concerns, it is not a transaxle durability issue.
Correction
