Component Tests and General Diagnostics

Checking fluid level and condition (color and odor) at regular intervals will provide early diagnosis information about the transmission. This information may be used to correct a condition that, if not detected early, could result in major transmission repairs.

IMPORTANT: When new, automatic transmission fluid is red in color. As the vehicle is driven, the transmission fluid will begin to look darker in color. The color may eventually appear light brown.
A DARK brown color with burnt odor may indicate excessive fluid deterioration and signal a need for fluid change.

FLUID LEVEL
When adding or changing fluid, use only DEXRON R-IIE.
Refer to maintenance and lubrication for maintenance information and servicing interval.

CAUTION: DO NOT OVERFILL.
Overfilling will cause foaming, loss of fluid, abnormal shifting and possible damage to the transmission.

1. Start engine and drive vehicle until normal A/T oil operating temperature is reached:

NOTE: The automatic transmission fluid level must be checked with the vehicle at normal A/T oil operating temperature: 75 TO 85°C (167 TO 185°F) MEASURED WITH TECH1 SCAN TOOL.

Temperature will greatly affect transmission fluid level.
If the vehicle is not at normal A/T oil operating temperature and the proper checking procedures are not followed, the result could be a false reading of the fluid level indicator and an incorrect adjustment of the fluid level.
2. Park vehicle on level ground.
3. Move gear selector to "Park."
4. Apply parking brake and block wheels.
5. Allow vehicle to idle for 3 minutes with all accessories turned off.
6. Check fluid level with engine running at idle:
Fluid to be in "HOT" area on fluid indicator dipstick.
Check also color and condition.
CAUTION: DO NOT CHECK FLUID LEVEL UNDER THESE CONDITIONS:
- At high ambient temperature above 30°C (86°F).
- Immediately after driving at sustained highway speeds.
- In heavy city traffic during hot weather.
- If vehicle is towing a trailer.
- In commercial service (Taxi or police).

If the vehicle has been operated under these conditions, shut the engine off and allow the vehicle to "cool" for thirty (30) minutes. After the cool-down period, restart the vehicle and continue from step 2 above.