Symptoms of a faulty automatic transmission torque converter lock-up solenoid:
*Transmission Slip: The torque converter does not lock up at higher speeds, resulting in slipping and loss of power.
* Increased fuel consumption: An unlocked torque converter consumes more energy, which increases fuel consumption.
* Jerky and jerky shifts: A faulty solenoid can cause erratic shifting, resulting in jerky and jerky shifting.
*Noise or vibration: A faulty solenoid may make noise or vibration when shifting gears.
*Starting Problems: In rare cases, a faulty solenoid can make it difficult to start the engine.
*Dashboard Errors: Some vehicles may display error messages related to torque converter lockup on the dashboard.
* Trouble Codes: Reading trouble codes using a diagnostic scanner may reveal codes that indicate a faulty torque converter lock-up solenoid.
Additional signs that may indicate a faulty torque converter lock-up solenoid include:
* Problems occur mainly when the engine is hot.
* Symptoms occur when driving on the highway or when towing.
* Transmission fluid is dirty or has a burning smell.