Many noises that are believed to be caused by the transaxle
may be caused by the following sources:
The noises caused by the above sources vary according to the following
conditions:
• | The amount of body insulation used |
Thoroughly inspect the vehicle in order to determine the source of the
noise before disassembling the transaxle. The transaxle gears are not absolutely
quiet and exhibit some normal operating noise. Use the following inspection
procedure in order to verify suspected transaxle noises:
- Select a smooth, level asphalt road in order to reduce tire noise.
- Drive the vehicle until engine coolant has reached normal operating
temperature.
- If noise occurs, record the speed and the gear range at which
the noise occurs.
- Inspect for noises when the engine is running and the vehicle
is stopped.
- Determine in which of the following drive conditions the noise
occurs:
• | Drive -- a light acceleration or a heavy pull |
• | Float -- maintaining a constant vehicle speed at a light
throttle when the transaxle is in gear. |
• | Coast -- a partially or fully closed throttle when the transaxle
is in gear. |
• | All of the above drive conditions |
- After road testing the vehicle, refer to the following procedures
for the diagnosis of transaxle noise under various conditions: