caboyd1977
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05 GMC Envoy XUV SLT V6 130k. Recently repairs include new thermostat, flushed cooling system, some brake work, new resistor for hvac blower motor. When driving at low speeds (less that 10-20 mph) the engine rpms fall below 1000, it stutters a moment then shuts down. Kick into neutral, crank, kick back into gear and keep rolling. Problem is intermittent. On occasion the rpms simply drop low, stutter and then catch back up. No check engine light so no codes. I've been told to check ignition switch, camshaft position sensor and crankshaft position sensor. Any advise?