Speaking of high altitude: I was in Incline Village at Lake Tahoe (8000 feet). It was about 30 degrees F outside in the morning. When I attempted to start the '80 SD engine in my normal manner of stepping on the accelerator while cranking the engine, it wouldn't start. After trying to start it a couple of times in this manner without success, for some unknown reason I tried again without stepping on the accelerator and the engine immediately started.
Any explanations?
P E H