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This is going to sound funny, but I've never had a problem getting the system to burp itself with just a bit of driving and the cap loose. I did have problems with the E350 MH's with 5.4. They always seemed to take an extra bit of time and energy. We learned to raise the front ends on them with 16" jacks. They burped quickly that way (as Brew mentioned).
The B chassis, no matter the brand, were always a biatch to flush and fill. The Chevy's wouldn't burp without adding a flush tee, period. Luckily there were few and far between Mopars. I hated their vans to work on. Cheap wiring seemed to be their biggest downfall. You had to run additional wires to have enough size to run rear trailering functions (e-brakes etc). Almost every tag on the 98 up models had Mexico as the source for the harness builds. Cheap, undersized wiring.
It took me several tries on my 97 to have heat right after a coolant swap. Then I figured out to raise the back of the truck as high as possible, drain radiator, remove lower hose and then upper hose, and use a shop vac to blow on the upper hose. Gets just about all the old coolant out. I've never used cleaner. Then I move the truck to a place where the front is on a little high spot and jack the front as high as possible. fill it with mixed coolant while running. Seems to work every time. Take about a week of driving and it might be a pint low. Add that pint and she's good for years.
Motorhomes must be more of a hassle than my 2011 E-350 passenger van. I put the front of it on the berm in my driveway and get about three 5 gallon buckets. I remove the coolant hose behind the left rear tire and let it drain into the buckets. I get two buckets mostly full or three filled low enough I can carry them without spilling them. Put vac on blow on the reservoir bottle to get it all. Hook hose back up, start engine, and install ~$90 worth of gold coolant and distilled water. Over 7 gallons to full. Never needed to burp.
I use the shop vac as I'm afraid if I used high pressure from the compressor I would forget to set the regulator and pump 140PSI into the radiator or heater core.
That's cool. Yea, I think they updated the epicenter now at 575 miles southwest of Anchorage approx. 7.5 isn't small potatoes that's for sure. Looks like it was in the ocean. They're saying 25 miles deep anyway. Glad you were on solid ground!
