Ford Courier 2001 Problems

You could be experiencing what’s called vapour-lock. In simple terms, the fuel in the fuel line in the engine bay is getting so hot, it’s more or less boiling and bubbling as a result. That causes two further knock-on problems. The first is that fuel pumps don’t really like to pump bubbles. The second is that bubbles of air don’t burn in the engine like fuel does.

The usual solution is to re-route the fuel line away from any source of heat (exhaust system, hot engine parts) and see if that works. The other old-school solution for this ancient problem is to lag (insulate) the fuel line itself to protect it from ambient heat inside the engine bay.

The other common heat-related stalling problem comes in the form of a faulty crank-position sensor. Once these start to die, they can stop working when they get warm. When that happens, the critical signal telling the car’s computer when to fire the fuel injectors is missing and the engine stops. You can test this next time it happens by pouring cold water on the sensor and then trying the ignition. If it starts and runs perfectly after that, you might just have found your problem.