201601 - Call 2

New York
Stephan’s car has a tendency to run rough, exude black smoke, and stall. He replaced the coolant temperature sensor-- but the car still stalls, so he turns the engine off in gear, coasts, restarts, and it’s okay for 15 to 20 minutes. Tom and Ray think the problem is likely in the computer--getting a bad signal in run mode, so putting it into “limp home” mode is helping. Stephan should get computer scanned, and also check the thermostat.