It's supposed to snow today here as well, probably wont start until right before I have to pick the boy up from school then go like hell!
Got a call at 9:30 last night, guys daughter has an '01 Jeep Grand Cherokee, cranks but wont start. Made some calls for research and to line up a scanner. Sounded like it was most likely the crank position sensor. I dreaded that, it's between the engine and tranny, real bear to get in and out and the only test is to use a scanner and I dreaded borrowing a $3500 Snap-on modus!
Got everything ready, get over there starts right up. Hooked the scanner up and ran the codes, just a couple of hits with the O2 sensors, nothing else. Drove it around, shut it off and started it a couple more times, no problem! Can't fix whats not broken! It's frustrating to both of us!
But I did learn a neat trick for Chrysler products, and some Saturn's that I wanted to share in this long winded post!
If it wont start, get out, close the doors, using the key, lock then unlock the drivers door and see if it starts.
This is an included trick/security feature that resets the ECM (engine computer) back to default mode and lets it learn all over reseting the trouble fault.