Here is more info on the EGR port cleaning the big problem is the tip of the port stop's up so you have to remove the upper intake and clean the tip of the port. It commonly dumps all the EGR flow into the one or two ports that still flow . The pic shows the front 3 egr ports.
I watched the video too. He was replacing the black tube for a coolant leak. The video would help you see what you need to do to get the upper black intake off.
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I recently ask a question and Steve did his best to help with what he had to go by. I would like your opinion please.I have a 2002 windstar.It misses and stumbles when first started but runs normal at low speeds up to around 70 then stumbles and wont accelerate until I back off the speed. Then after 10-15- miles will run fine again.The ecm kicked these codes out C 1103- U1262- B1318-P0401-90171-P0174- P0316.The EGR valve has been upluged for sometime and I replaced the fuel filter and 6 months ago the coil pack,the air idle control valve and the fuel pressure regulator . Any ideas ?