OK....Just got my truck back after getting studs, EGR delete, and a new oil cooler. The shop took three weeks to get it done, because the machine shop that they used to check/machine the heads took FOREVER.
Right off the bat I noticed that my truck was taking 1-2 seconds longer to start than normal, so I checked each battery.....12.66V on each.
I conclude that this somewhat low voltage is due to the fact that the batteries sat so long. I decide to give it a few days to recharge, and re-check.
Well......today on the way home from work, the CEL comes on.
I pull into an O'reilly's auto parts, and check the codes with my SCT. There was an injector circuit low for each cylinder, and a FICM performance code. The batteries were still at 12.6ish. (tested unhooked)
While I was at O'reilly's I had both batteries checked and charged, and the alternator checked. Everything checked out good.
When I got home I decided to check the alternator output myself. I checked the output from the back of the alternator....13.8V. While the truck is running, at the batteries....13.7V Truck shut down......12.6V
Are the batteries starting to go? Is it really the FICM? What should the batteries test at when it's not running?
I didn't have time to check FICM voltage, but I will do it tomorrow. What I really need to know is if my battery voltage is normal or not.
2005 F-350 4x4 SRW CC LB
ARP Head Studs, EGR Delete, Insight CTS, 03' Turbo
4" MBRP Turbo back, SCT SF3, 6.4l banjo bolts
Leveled, 36" SS Irok's, 20" Moto Metal MO950