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None starting issue

(1999 Lincoln Navigator)
in Detroit, MI on October 15, 2010
My truck cut off while driving. I changed the crank sensor and the cam postioning sensor. Also the spark plugs have been changed and vehicle has been tuned up. Any idea on what the problem may be? (the truck is not getting fire)
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Popular Answer
You need a workshop manual to start testing the various circuits. A lot of time testing components right at the ECU is easiest but you need a volt meter, ohm meter and an oscilloscope to do meaningful tests. A professional grade scan tool plugged into the 16 pin diagnostic port under the dash can read a lot of live sensor data for example how much air is entering the engine, engine temperature, and other key sensor information with out having to do intrusive sensor testing at the sensors or ECU. Autozone have some popular workshop manuals for free on line once you register (for free) on their website http://bit.ly/autozone_repair_info or there is a company that independent auto repair shops "buy" their information from that offer a very reasonable service to do it yourselvers. You can get a one week subscription or year subscription very cheap. The information is year make and model specific repair procedures, service bulletins, component locations, wiring diagrams ect.... great quality information same as the professionals have ,much better than generic workshop manuals from parts stores, much cheaper than the factory manual try http://bit.ly/mitchell_repair_manuals_online
and get an online repair manual subscription.
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