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Old 10-14-2018, 01:45 PM   #5
fdryer
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Join Date: Jan 2006
Location: NYC
Posts: 43,271
 

2003 L-Series 3.0L Sedan
Default Re: No start, no spark

Ok, your answers seem to point to lack of spark. I forgot to ask - removing spark plugs should reveal wet plugs as indication of a good crank sensor and engine computer operating injectors to spray fuel into each cylinder while controlling the ignition system for spark. A dead crank sensor won't allow the engine computer to run at all - no spark, no injector pulses, no fuel pump operation while starting and driving, a dead EFI system. Checking for fuel on plugs verifies 99%of the EFI system is operating. Loss of ignition/spark points to the ignition control module, coil pack and wiring.

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