Hi I was having same prob and I thought it was the imrc box but I then found it was the nipple on the dsi clip had broke of.So I went to ford and they wanted to sell me a new manifold but after a bit of arguing and checking he found the part number and got it ordered.I only found out after that u can get a metal 1 that would have been better. I got the old 1 of no prob but I don't seem to be able to get the new 1 on with the spring.I dont want to pay ford the money to put it on can any 1 tell me is there a certain way to put it on .Thanks