1998 Subaru Legacy Repair Question
Topics covered: Sensor, Torque, Torque converter.
Mileage: No information provided.
Mileage: No information provided.
Asked on October 21, 2009
1998 Subaru Legacy P0740 code
Transmission problem
1998 Subaru Legacy 4 cyl All Wheel Drive Automatic 154000 miles
Not sure if trans or electrical problem. Car has rebuilt trans w/20,000 miles. Use for paper route so rough driving. Got P0740 code twice in 3 days. Son has repalced TCC solenoid on another car, but not Subaru. Does the valve body have to be removed to replace TCC solenoid? He's worried about bearings inside. Any special handling required? Should we check something else before replacing the solenoid? He would like a diagram but all I can find is full manuals. Basically anything you can tell me would be great. Thanks so much.
1998 Subaru Legacy 4 cyl All Wheel Drive Automatic 154000 miles
Not sure if trans or electrical problem. Car has rebuilt trans w/20,000 miles. Use for paper route so rough driving. Got P0740 code twice in 3 days. Son has repalced TCC solenoid on another car, but not Subaru. Does the valve body have to be removed to replace TCC solenoid? He's worried about bearings inside. Any special handling required? Should we check something else before replacing the solenoid? He would like a diagram but all I can find is full manuals. Basically anything you can tell me would be great. Thanks so much.
Answer
Replied on October 21, 2009
P0740
Torque Converter Clutch System Malfunction
this code is giving a list of solenoids and sensors to test. the problem is with one of them setting the code above.
Check throttle position sensor circuit
Check torque converter turbine speed sensor circuit
Check engine speed input circuit
Check brake light switch circuit
Check ATF temperature sensor circuit
please write if you have further questions
about components location, testing.
thanks