CHEVROLET ENGINE IDLE LOW

There Is A Flapping/rattling Noise Seeming To Come From The Middle Front Of Engine When Accelerating At Low Speeds And Occasionally When...

Hello I Have A 2000 Chevy Z71 And With The Truck In Park The Idle Will Flucuate From 500 To 1000 Could It Be A Idle Sensor Going Bad.

Oil Pressure Is About 60 When Cold Drops To 40 When Warm And Even As Low As 25 At Idle When Warm. Oil Is Fresh And At The Level.