Why? install the correct valve, and connect the vacuum lines per the factory diagram, if you keep the egr valve on the engine. If not keeping the egr valve, don't even bother with the temp switching valve. Go to mymopar.com and download the proper part and service manuals.
Because the original has two ports. The one you sent (thanks, by the way) has three. I only have two hoses available to run. I don't want to lose pressure. I have the proper manuals.
