Dakota 3.9L autotrans. 126k miles. Turns over no crank. Xtrans solenoids changed out. Downstream o2, crankshaft sensor, camshaft sensor after each change out clear code, codes per autozone.
. Coil, wiring harness to coil changed. Back probe harnes volt present. New plugs w/gap set. Each plug wire good spark except #3-weak. New battery. You can drive, then no crank. Last wed am cranked, pm no crank. Went this am cranks. No engine light code. Any info gratefully excepted. Thanks.
Just so we understand each other, cranking and turning over are the same thing. So, when the problem occurs, your saying it cranks good but, no start? I always check for codes. I've had inactive codes on different makes and models point me in the right direction.