Inspection and Verification
- Verify the customer concern by operating the vehicle to duplicate the condition.
- If the inspection reveals obvious concern(s) that can be readily identified, repair as necessary.
- Install new components if a transmission fluid leak is found in any of the transaxle cooling components.
- If the concern(s) remains after the inspection, determine the symptom(s). Go to «Symptom Chart - Transaxle Cooling»(ref-293519-S16217308052008080700000) or Go to «Symptom Chart - Noise, Vibration and Harshness (NVH)»(ref-293519-S16217308052008080700000) .
Symptom Chart - Transaxle Cooling
| Condition | Possible Sources | Action |
|---|---|---|
| Transaxle overheating | Clogged transmission fluid cooler or transmission fluid cooler tubes Bent or crushed transmission fluid cooler tubes Transmission fluid cooler thermal bypass valve stuck closed | INSPECT the transmission fluid cooler, transmission fluid cooler tubes and transmission fluid cooler thermal bypass valve for damage or plugging. INSTALL new components as necessary. |
| System leaks | INSPECT transmission fluid cooler and transmission fluid cooler tubes for leaks. SERVICE as required. | |
| Internal transaxle concerns | REFER to AUTOMATIC TRANSAXLE/TRANSMISSION - 6F50 article. |
Symptom Chart - Transaxle Cooling
Symptom Chart - Noise, Vibration and Harshness (NVH)
Note. Noise, vibration and harshness (NVH) symptoms should be identified using the diagnostic tools that are available. For a list of these tools, an explanation of their uses and a glossary of common terms, refer to NOISE, VIBRATION AND HARSHNESS article. Since it is possible any one of multiple systems may be the cause of a symptom, it may be necessary to use a process of elimination type of diagnostic approach to pinpoint the responsible system. If this is not the causal system for the symptom, refer back to NOISE, VIBRATION AND HARSHNESS article for the next likely system and continue diagnosis.
| Condition | Possible Sources | Action |
|---|---|---|
| Vibration - a high frequency (20-80 Hz) that is felt through the seat or gear shifter. Changes with engine speed | Transmission fluid cooler tubes grounded | CHECK the transmission fluid cooler tubes. REPAIR as necessary. |
Symptom Chart - Noise, Vibration and Harshness (NVH)