Question When starting your vehicle, the coolant temperature should: Answers Not change. Increase gradually. Quickly jump from low to high. Explanation Watch the gauges in your vehicle before starting a trip. After starting your vehicle's engine, the coolant temperature should begin a gradual rise to the normal operating range. Take a FREE Practice Test Now This questions appears in the following tests: Louisiana Knowledge Test Class B , Michigan Knowledge Test Class B , Mississippi Knowledge Test Class B , Oklahoma Knowledge Test Class B ,