We have a 98 SC2 with about 70,000 miles. Some days it will not start. It turns over fast, but not matter how long you crank it it will not start. I do not smell any gas, like it is flooded. Mostly it will not start when it is very cold. Like 10 degree winter night. Next day it starts like there is nothing wrong. No computer codes recorded. Took it to one mechanic and he replaced a temperature sensor. Next night it would not start. Took it to another mechanic (specializes in Saturns) thought he found a loose wire on the computer. Next night it would not start. We were musing that the with the warmer weather the problem would go away for a while, however now it stalls sometimes after it started and idling for a few minutes. The mechanics think we are nuts because it always starts for them. When it runs it runs like clockwork. Any clues?
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