Car Stalls When Stopping at Red Light After Warming Up: Causes and How to Fix Each One
A car that stalls when coming to a stop at a red light specifically after the engine has warmed up, but runs normally when cold, almost always has a failed or dirty idle air control valve that cannot maintain adequate idle speed at warm operating temperature, or a carbon-fouled throttle body that restricts airflow to […]
Car Vibrates at Idle in Drive But Stops in Neutral: Causes, Diagnosis, and What Each Fix Costs
A car that vibrates at idle when the transmission is in Drive but smooths out in Neutral almost always has a worn or collapsed engine mount or transmission mount, because Drive engages the torque converter and loads the drivetrain in a way that Neutral does not, amplifying any vibration that the mounts can no longer […]