Long crank time

[JWJR]

My dads truck is starting to have a long crank time 5 to 10 seconds before it starts it has been doing this even in 80 degree weather. once it starts you can shut it back of then start it again and it will start right up. the truck idles fine but when you first start driving it with out much warm up time, it will take like 5 minutes of driving before the truck with want to shift right and have full power. Once the truck is warm it runs great and has good hot starts. The truck has 112000 miles on it. it has fresh fuel filters and the second oil change with 5w-40 VPBE.

I have AutoEnginuity and have look at a couple things. The FICM never drops below 46 volts, but it seems to me like the ICP stays at .24volts for a long time then it jumps up right before it starts. The truck got a new passanger side battery last winter and a new drivers side a couple months ago. And i know you should replace them as a pair but i cannot convince my father of that. i had the passanger side battery tested, when we got the new drivers side, and it is still good.

Can yall please help me figure this thing out? I miss how it would start up and drive nice right away.

[JWJR]

forgot to mention that it had problems last winter then we switched it to the 5w-40 which helped a lot in the winter and then in spring and most of the summer it ran great most of the time.

[NYC F-350]

Monitor the IPR duty cycle, ICP pressure desired and ICP pressure. Post up the findings.

[JWJR]

i tired to record those PIDs this morning but i think i tried starting it to quickly after hitting the record button so i missed most of the cranking time. Ill post up result tonight or in the morning.

On a side note every once in a while we can he like a screeching coming from under the hood on a cold start up. Is that possibly the turbo starting to hand up?

[JWJR]

OK got something this time only bad thing is that the first line of readings got messed up some how so i am missing my first reading for IPR and ICP Desired. Hes what i got if i need to do this again ill do it in the morning after it sits all night.

IPR
8:25:20.983 - ?
8:25:22.340 - 14.84
8:25:24.462 - 14.84
8:25:26.490 - 14.84
8:25:28.502 - 84.77
8:25:30.515 - 84.77
8:25:32.558 - 38.28
8:25:34.602 - 37.5
8:25:36.646 - 36.72

ICP Desired
8:25:21.295 - ?
8:25:22.668 - 0
8:25:24.790 - 0
8:25:26.833 - 0
8:25:28.830 - 1457.6
8:25:30.858 - 1085.4
8:25:32.902 - 981.8
8:25:34.945 - 961.9
8:25:36.989 - 956.8

ICP Actual
8:25:21.638 - 2.83
8:25:23.011 - 3.4
8:25:25.117 - 3.4
8:25:27.130 - 3.4
8:25:29.158 - 17.56
8:25:31.186 - 1557.92
8:25:33.229 - 990.27
8:25:35.273 - 965.35
8:25:37.316 - 954.02

FICM never dropped below 47.5 and Battary voltage dropped to 10.5 volts. i seems to start faster than it did in augaust but still slower than when we got it. also there was a ICP code, something to do with starting, right after we changed the battery but i assumed it was due to the battery and i cleared it last month and it still has not reappeared

[WarChild]

batteries might be going bad

[ruger#1]

Mine is 2006, And it was the o rings on the dummy plugs. Starts up great now. It might be a high preasure oil leak. I had the HPOP re and reed and the SCT fitting was upgraded with a new one. The last thing that was done was the O rings on the Dummy plugs. And that fixxed it.

[JWJR]

Went and got both batteries tested this morning and the are both good. I've been thinking about changing the standpipes and the dummy plugs and up date the STC fitting, but was wanting to know if it might be the IPR or the ICP before i take the time to change them. Quick question will I'm thinking about it. Why are them dummy plugs in the oil rails anyways?

[Twin Terrors]

I just had my truck in for the same thing. Long cranks and sometimes wouldnt start. Both my batteries were going and my FICM was bad

[ruger#1]

JWJR, Try to do a high preasure oil preasure test. If you start to loose oil preasure then you are closer to finding the problem. I do not know how to do it, or why the dummy plugs are there. Good luck