Background: My 2005 Durango began "bucking" when accelerating. It coded as camshaft position sensor, so that was replaced, following which it became very hard to start, cranks forever before it will start. Advised that crankshaft position sensor needed replaced. Had that done, but still no change. Codes now as 3440 and p3444, still "bucking" and hard to start.

Any ideas on this? Suggestions? Are there one or two camshaft position sensors on the 2nd gen Durango? We've only been able to find one.

 

what is 3440 and 3444?