2001 Ford Windstar Van will start, but not crank

2001 FORD WINDSTAR
201,000 MILES • 6 CYL • FWD • AUTOMATIC
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DECEMBER
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My van had been misfiring when going slow or when stopped in traffic. The RPM gauge would fluctuate and the battery (voltage) light would sporadically flash. I replaced the alternator and battery.
After stopping at the store, the van would not crank. The codes indicated misfire on cylinders 1 and 3. Two plugs were cracked. We replaced the plugs, plug wires, and coil. The van still will not crank.
Fuel is getting to the engine, and the fuel pump comes on properly. We have checked all the fuses.
When the key is turned, the car will start, and try to turn over but not crank completely. The scanner shows no codes. What should we check now? What could cause this problem?
Nov 28, 2009 at 6:28 PM
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RASMATAZ
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Do below and comeback with some results we start here

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs,coil's resistances,distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it
Nov 28, 2009 at 6:38 PM