Vacuum Leak

Engine Misfire – Rough Engine Idle On GM 4.8L, 5.3L, 6.0L Engines
Engine Misfire or Rough Engine Idle on GM 4.8L, 5.3L, 6.0L is becoming, more common and getting harder to diagnose. Because, GM V8 engines are very prone, to a rough idle and engine misfire when […]