Ford Repair Questions? Ask a Mechanic for Answers ASAP
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I would like to ask a few questions:
Did the dealer scan the car for fault codes? Do you get any warnings on the dashboard just before the engine turns off? Does it happen on a cold engine or warm engine?
I was going to mention the cam and crank sensor faults in my next question. I would suggest getting the crank sensor replaced first, these sensors are major engine sensors and even if they are dirty, they will cause the engine to turn off, here's how:
The ECU obviously doesn't physically know the position of the engine, it uses the cam+crank position sensors to know this, if these sensors give wrong feedback to the ECU, the engine will shut down.
The ECU won't know the position of the pistons and valves because the ECU determines these positions from the cam+crank sensors so, it will affect the fuel injection timing as well.
These sensors aren't the only reason that the engine will shut down, a problem with fuel delivery can also cause this.
It's usually not a big job, it depends whether the crank sensor is buried deep in the engine bay or not.
Follow this GUIDE which I found online.
Hope this helps
If the ECU doesn't know the position of the pistons, the timing of the fuel injection will be affected and the engine will die.
You have to remember that the sensors are converting the physical position of the engine piston and valve into electronic signal so the ECU can use this to inject fuel at the right time to keep the engine running.
It is dangerous for the engine to die randomly and this issue needs to be resolved ASAP really.
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