Just changed out the ac compressor and drier, now when on the gas pedal it sounds like a rescue squad siren. Can't hear to good but I was looking around to see where the squad truck was so I could pull over if I had to. I did have to remove one end of the pipe from the turbo to the inter cooler, I checked to make sure the clamps where tight again. Not a squeal but whistle-siren noise. Just revving the engine, no sound. Any ideas?