Strange no start. So I have been storing my truck at my buddies house for several months. I went to take it home yesterday but it would not start. that morning, he had moved it from his driveway to the road--behaved normally, little low on battery.
So the battery is about 11V. Less when trying to start. It turns the motor, struggles a little but then just sits there and cranks (not too fast like normal, but not super sluggish either) and the battery voltage drops to about 9 during this. I checked the fuel rail and thank god I am getting 60psi as I don't want to deal with dropping the fuel tank--I have done that enough in my life (and I have a full length bed drawer bolted down so accessing from above would be super hard too...). But it isn't that. We hear the fuel pump and I am getting fuel.
Where it stands right now, I have a charger on the battery to top it off. Maybe the low voltage during chug over is just not enough for the ECU. That seems like an easy something to rule out. I also reconnected both plugs to the ECU just in case of who-knows-what.
Anything else to check while I am over there this evening? Otherwise, I will just have AAA tow it to my house (about 8 miles) and do my full diagnostics at home. Fuel: Confirmed. Compression--really super likely, not confirmed, but running super strong when running. Spark--will check that easy enough when I bring back my tool kit--but assuming not.
Is low voltage a likely thing given that it does turn over, just no catch (not even a little catch--nothing at all...)? I have never had a low voltage condition do that before but I just can't think of what else this could be just from sitting given it ran just a day earlier (It didn't struggle to start, but it only ran for 30 seconds as he re-parked it, so I am thinking it depleted the already depleted battery that has been sitting a long time...)