engine swap

1996 PLYMOUTH VOYAGER
173,000 MILES
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KEVIN377
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i have a 96 voyager with a 2.4 and recently changed the engine due to blown head and broken piston rod i replaced the engine with a 2002 caravan engine and now i am getting no fire or power to coil i have changed all sensors from old engine to new one any suggestions would greatly be appreciated
May 28, 2013 at 2:16 PM
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CARADIODOC
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First of all you have to check for voltage to the ignition coil while cranking the engine, not just with the ignition switch turned on. Second, six years is a big difference. Which flex plate did you use, the original '96 or the one that was used with the '02 model? They will likely have different cutouts for the crankshaft position sensor to detect. If the Engine Computer doesn't see the right signal from the crank sensor it won't turn on the automatic shutdown relay which powers the ignition coil and injectors.
May 28, 2013 at 9:06 PM