I have a 2004 Ford Expedition 5.4L V8 Eddie Bauer Edition. I have been search the internet for almost 3 hours. I can NOT find any information, diagrams, pictures, location details, YouTube, or anything in regards to the proportioning valve. My Mechanic and I have decided that I need to replace the one on there. Does anyone on here have any diagrams, pictures, or any information of any kind that will help me locate it on my vehicle?? Please advise or point me in the right direction?!?! I am a single mom of 2 boys, one has numerous medical conditions which require multiple specialists that are 2+ hours away in one direction. I’ve only had this vehicle for 6 months but I can not be without a vehicle.