On Thursday we disconnected the tow car and drove it up I-80 toward Reno and stopped about 1200 feet below Donner Pass for our 3-night camping visit with Mark and his family. The reason we unhooked, of course, was to reduce the weight so the GMC could make it to the top. The engine and transmission on the GMC were designed for a 6000 pound automobile. The GMC weighs in at just over 11,000 pounds and the Tracker (our tow car) weighs an additional 3,000 pounds. The altitude – we disconnected at about 1000 feet – robs power to the point that there is not much left when you get to 5,000-6,000 feet. I am wondering if I should investigate converting to fuel injection. They say it can do a lot for altitude compensation. Food for thought.
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