Hey, All! Happy Spring!

Saturday evening, my XF wouldn’t start….

I ALWAYS wait for the completion of initialization. Dash lights, clicks, hums, chimes to complete. Once complete, I turn to start.

This time though….a few hours after a car wash (in a conveyer type)…the car and everything was dry. I went to put the car in the garage for the night.

The first iteration gave a weak half-crank (maybe quarter crank) then nothing. No turn over.

The next and subsequent crank attempts (3)….nothing. (I had lights on the dash, the hum and clicks and chimes per usual) and once initialization was complete, nothing. No weak crank. Nothing. I gave up and started looking through the forum.

The next morning I came out to try again. Same results. nothing. ……The last time, I disconnected the negative terminal, gave it a few minutes, reconnected it and…. Fired right up! Like It never happened! There are no lights on the dash. No codes.

So, guys (and girls) what is the culprit? The battery, starter, alternator, ECU, SKREEM, grounding cable?

Last year I replaced the cam and crank sensors. Over winter I changed the oil, filter, spark plugs, coil packs, and wires. Oh, and the GD automatic shift assembly after I spilled coffee on it. … and big thanks to you guys for walking me through the fix and where to get a shift assembly. You guys are great!

As far as I know, the battery, starter, alternator are all original.

This car has 54k on the odo, and is not driven hard. ….a cruiser. It’s an ‘04 NA.

Thoughts?

thanks in advance for any advice.