Severity: Fix within days. Drive with caution and watch for new symptoms.
The torque converter clutch is not locking up when the computer commands it, so the engine and transmission stay connected only through fluid and fuel economy drops.
Check the fluid level and condition, test the solenoid, and have the converter checked.
Fuel economy drops and the transmission runs hotter. Drivable, but get it checked before a long trip.
You can drive short distances carefully; watch for worsening symptoms. Fuel economy drops and the transmission runs hotter. Drivable, but get it checked before a long trip.
The most common causes are: Failed torque converter clutch solenoid; Worn torque converter; Low transmission fluid; Internal leak. A scan tool and a visual check of the parts above is where a technician starts.
Check the fluid level and condition, test the solenoid, and have the converter checked.
