Strange issue with 06 that wont start up

So out of the blue a couple of weeks ago, my 06 GT with a JLTII CAI + Brenspeed tune just died pulling out of a parking spot. Just stumbled a bit, then died. Tried starting it and it acted like a car that was flooded. Would crank the motor, trip like it wanted to start, then would just die. Repeat.

Had it towed to the dealer. They checked everything and found that the battery was in really bad shape and said that it wasn't turning the motor fast enough to get it to start and was just dumping fuel into the cylinders. Whatever. They said that it spit out a bunch of fuel when it started after a new battery was put in.

So it was running fine all last week, then on Saturday I went to start it up and it did the same thing. Acted like it was trying to start, stumbled for a few seconds and died. I didn't have time to screw with it then, so I took my truck. Fast forward to Sunday. I put a meter on the battery to make sure that it still had a good charge and it read 12.47 volts. Battery good. Just for poops and giggles I tried to start it and it started right up, and has been running fine ever since.

So I suspect that something else is going on other than the battery (duh). I don't think the JLTII or Brenspeed tune has anything to do with it as I've been running that for well over a year now. I know the filter needs to be cleaned, but I don't think that would do it.

So anyone have any ideas?

Thanks in advance...

Spdfreak said:

Loose CAI at the throttle body? CLogged air filter? Sounds like it's struggling to breathe.

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Ok, I think I'll just order another JLTII filter and just replace it as I don't have time to clean mine right now. That is actually why mine is all dirty anyway, time. Infants have a neat way of sucking any and all free time away from you. lol

I got my JLTII and tune from Brenspeed, anyone know of the best/economical place to get replacement filter or does it not really matter? I think Brenspeed wants ~50.00 for it.

streethorse said:

Just get a K&N cleaning kit ($10.) at Autozone.
Clean and reoil. Let it dry for a couple of hours after you clean it , then
apply the oil and install.

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I did that with the K&N in my truck, problem is that it took a whole day for it to dry enough to put the oil on. I ordered the new filter from Brenspeed. This way I'll always have a clean spare to quickly swap out with.


edit: I really hope that the problem is a dirty filter. Otherwise I have no clue what the problem is. CEL isn't on, so I assume reading codes wont help.