Changed Plugs, Now Soft Brakes

[jm_prindle]

I installed new plugs on my 2006 Range Rover HSE (Jag Engine). I removed what I think is the ABS modulator so I could reach the plug closest to the firewall on the driver side. Now that everything is back together my brake pedal is really soft. I did note that when I disconnected a hose that was in my way, it sounded like I disconnected the hose from an air compressor (whoosh!).

Do I need to bleed the brakes or will this resolve itself? Other thoughts are welcome.

Thanks