If your trucks cranks excessively (more than a few seconds) when it is cold, and you don’t get “fast idle”, check this switch. Most people seem to think it's the actual cold start injector that failed, but 98% of the time it's this switch that has failed. It is the most common reason for both problems. You’ve watched our video to test it, so...... you know it’s bad. Right?
*year range is approx. you'll need to know which connector you have