Hello jb5148m-- Two days ago I had the same question that you did, and I saw your post while searching on the Internet. I couldn't find any advice so I tacked it myself. My rear heater pipes had rusted through on the bottom and I lost my coolant. I bought a new aftermarket pipe and hose assembly for about $100, but getting the old one out with all of its pipes, welds, brackets, and bends proved to be complicated. To allow working room I had to remove the air intake plenum, the throttle body and all of its hoses and connections, the battery, and disconnect the exhaust pipe from the rear manifold and slide it over out of the way. The intake plenum has a bracket on the bottom rear that holds some tie-downs for wiring. You have to remove two bolts with a 15mm wrench working underneath, up through the access tunnel where the exhaust pipe passes through to remove this bracket. You also have to remove a plate that braces the alternator to the plenum. Once all of that "stuff" is loose / removed, you can twist and turn and pull and sweat to get that crooked pipe assembly out and the new one back in. It was difficult, but now it is fixed and it looks "factory". This is still a great van with 180,000 miles on it. If I could buy a new one just like it, I would. Hope this helps.
Thursday, June 16th, 2011 AT 10:41 PM