Turning on the car in the morning, and shift to drive, a dragging noise coming from engine or transmission which is annoying and will last for at least 7 minutes before it gets to normal driving sound, you can hear the dragging noise when stepping the brake pedal while it is on drive mode, but not on reverse mode.

I brought the car to shop and checked the brakes and they all look good. Had replaced the transmission oil. But the problem is still there.

My 2003 GMC Envoy has been a great vehicle, until now. I have taken it to different mechanics and they have no idea what the problem is. Nothing shows up when they plug it in. I am losing MPG. It only does this on hot days. If I get up to 3 to 4 thousand rpms quickly the noise will go away but will come back if I am sitting in a drive thru or turn it off and restart.

I have taken my vehicle several times for this same problem each time my service guy at Beck Master Pontaic, GMC will tell me there is nothing wrong. When I start off in the morning or during the day my vehicle sounds like it is hard to pull or it will make this noise like a jet engine.