Uploaded February 2026 | Updated September 2026, 2 days ago

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Car cuts off when you stop or stalls at lights? Learn the most common causes—dirty throttle body, vacuum leaks, torque converter clutch issues, weak fuel pressure, MAF sensor problems, EGR/EVAP faults, and low voltage—and how to diagnose and fix stalling when slowing down or coming to a stop.

Timecode:
00:00:00 - Short intro
00:00:53 - What Changes Right When You Stop
00:01:36 - Dirty Throttle Body or a Sticking Idle Air Control System
00:02:49 - Vacuum Leak That Shows Up Most at Idle
00:03:46 - Clogged crankcase ventilation
00:04:55 - Torque Converter Clutch Not Releasing on an Automatic
00:05:48 - Bad Mass Airflow Sensor or Dirty Sensor Readings
00:06:40 - EGR Valve Stuck Open or Purge Valve Issues
00:07:30 - Electrical or Charging Issues That Show Up at Idle
00:08:14 - Quick Steps to Narrow It Down Without Guessing