The engine had cooled, the remnants of heat gone.
We're going to have to wait until the engine cools or we get the car off the track and opened up.
The convoy stopped at a river to let the engines cool.
It came with substantial rust and was impossible to restart until the engine had cooled.
We'll look at how your car's engine starts, cools and circulates air in the next section.
The car's engine and hood cooled down with a relieved ticking sound.
If the engine had already cooled, the car had been there a bit.
The engine had cooled down and was silent now.
The engine may cool too rapidly, resulting in stuck valves, cracked cylinders or other problems.
This happened on occasion, especially when the engine had been hot and then cooled.