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Truck Shuts off and Refires while driving.
I have a 2005 Excursion. About a year ago I did head studs, egr delete, head gasket and a few of the other recommended corrections. With an Excursion the motor has to come out as the cab cannot be lifted off. About two months after getting the truck back on the road I was driving on the interstate on the cruise control and the truck started slowing down. Looked down and the glow plug light was lit and then went off. I pressed the accelerator and the truck was fine.
I have been pulling my hair out trying to figure out why this truck will shut off and refire at random times. If I am traveling in excess of 10MPH or so it refires itself, otherwise I have to throw it in neutral and hit the key.
The problem seems to be getting worse. I took it to a Ford dealer for diagnosis and they want $$$$ to replace the EGR(deleted) and Mass airflow before they will diagnose the other problem. I call that extortion.
Sometimes the theft light will start to flash rapidly while driving. When this happens the truck is about to cut off and restart in rapid succession about 4 times. Then the theft light will flash for a minute and then flash the 16 code.
I have replaced cam and crank shaft position sensors to no avail. I just know this is a short somewhere because the problem is intermittent, but how the heck to you go about finding that?
Any and all help appreciated.