Removing the intake is surprisingly easy. The plastic intake on my 1997 (this happened in 2000) 4.6 grand Marquis cracked at the water crossover pipe. This scared the crap out of me because I don't work on cars much and at the time it was the first time I had worked on something with fuel injection. After consulting a friend who knew this job well I had the intake replaced in about one hour........maybe 45 minutes. The tricky part was getting air out of the system so the coolant could flow. I found that the cross over pipe on the intake was about a half inch higher than the radiator cap. I removed a plug in the cross over pipe and displaced the air with water.......bingo, fixed.