The turbocharger that had been originally expected to arrive last Thursday, finally arrived on Tuesday August 22. On Wednesday at 7:15 AM the coach went into the bay once more, hopefully for the last time. They finished the installation shortly before 5:00 pm. On Thursday morning they conducted final checks and tests, including a new "air handling test" which is the test they did to determine that the turbo was bad in the first place. And finally, a test drive. Everything passed (or at least they said it did .... more to follow). We never did receive a credible explanation as to why the turbo charger failed. All during the events leading up to our fault codes the coach seemed to be running fine, and the turbo boost pressures seemed normal.
We escaped the Cummins service center shortly before noon. We had been here for 15 nights, and had shortened or totally missed camping reservations in Kremmling CO, Rocky Mountain National Park and Nathrop CO. The only good things I can think of about this experience is we were able to sleep in the coach each night (i.e. didn't need to go to a motel) and thus we got 15 nights of free camping .... so to speak.
As we left the shop I immediately noticed a rather severe vibration and shudder when accelerating between about 5 and 15 mph. Above 15 mph the shudder went away and everything felt fine. I should have turned around and gone back to check it out then, but I didn't. I was just so happy we were on our way, and besides, if something was wrong, wouldn't they have seen that during the test drive? Perhaps it was just my imagination, or perhaps I had just driven over some rumble strips .... Not! More on this issue later.
We headed west, first on I-76 and then on I-70 and made it through the metro Denver area rather easily. We then began a steady climb which would culminate at the Eisenhower Tunnel about 60 miles west at EL 11,185.
From Wikipedia:
The Eisenhower Tunnel, officially the Eisenhower–Edwin C. Johnson Memorial Tunnel, is a dual-bore, four-lane vehicular tunnel in the western United States, approximately 60 miles west of Denver, Colorado. The tunnel carries Interstate 70 (I-70) under the Continental Divide in the Rocky Mountains. With a maximum elevation of 11,158 feet above sea level, it is one of the highest vehicular tunnels in the world. The tunnel is the longest mountain tunnel and highest point on the Interstate Highway System. Opened in 1973, the westbound bore is named after Dwight D. Eisenhower, the U.S. President for whom the Interstate system is also named. The eastbound bore was completed in 1979 and is named for Edwin C. Johnson, a governor and U.S. Senator who lobbied for an Interstate Highway to be built across Colorado.
We last passed through this tunnel over two weeks ago eastbound and attached to a gigantic tow truck. Not an experience I enjoy recalling. Upon exiting the western portal of the tunnel we pulled off into the "brake check" area and had lunch. So far the coach was running well, excepting the low speed shudder, which had not been my imagination nor rumble strips.
After crossing the Great Continental Divide we began a long gentle descent heading west to our destination at Glenwood Springs. The Colorado River carved the Glenwood Canyon and had stunning views. I-70 hugs the cliffs, often on elevated roadways and one roadway stacked on top of the other. It is an amazing feat of engineering.
Views along the drive through Glenwood Canyon:
In 1887, prematurely gray and badly ailing, Holliday made his way to the Hotel Glenwood, near the hot springs of Glenwood Springs, Colorado. He hoped to take advantage of the reputed curative power of the waters, but the sulfurous fumes from the spring might have done his lungs more harm than good. As he lay dying, Holliday is reported to have asked the nurse attending him for a shot of whiskey. When she told him no, he looked at his bootless feet, amused. The nurses said that his last words were, "This is funny." He always figured he would be killed someday with his boots on. Holliday died at 10 a.m. on November 8, 1887. He was 36. Wyatt Earp did not learn of Holliday's death until two months afterward. Kate Horony later said that she attended to him in his final days, and one contemporary source appears to corroborate her claim. He died from tuberculosis.

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