Over the last 2-3000 miles I have noticed slightly longer crank times, I mean just enough to notice. The truck has always cranked within a second or two of turning the key but has gotten noticeably longer.
Today I get in after not driving for a couple of days and here is what i get(out of suspicion I videoed the monitor while cranking and as luck would have it an incident occurred)

From my CTS monitor

KOEO

IPR 14%
ICP 0
SYNC 0
ICPV 0.2
FICMV 47.5

while cranking

IPR 56%
ICP 1612
SYNC 1
ICPV 2.0
FICMV 48

SYNC was at 1 during cranking attempts if that means anything, later it wasn't

I cranked on the truck for several seconds and smoke was filling my garage. Scared the crap out of me cause I have no clue as to why this is happening. I stop cranking, reset my CTS and video my next attempt

IPR 54%
ICP 1585
SYNC 1
ICPV 1.7

Still no start and lots of grey smoke from the exhaust, I'm freaking out cause i've done everything I have ever read on this forum to prevent all this stuff and here it is happening to me. I am just lucky that my paranoia serves me well enough that after reading the thread recently on starting issues that I go out and video mine (just wondering about the longer starts)and dang if it doesn't do it for the first time ever, pull a no start. So, turn key off, allow CTS to boot up with KOEO and give it another try

cranks right up with these values

IPR 49%
ICP 1466
SYNC 1 upon start but 0 until start
ICPV 1.7

Batteries are new Diehard Platinums purchased in September and kept on battery maintainer
FICM is upgraded from Ed a few thousand miles ago
No error codes
Fuel pressure 62

After I ran an errand and got back home I turned it off, let the CTS boot back up and got normal values KOEO and on crank noticed the following start values after cranking a couple seconds

IPR 27%
ICP 833
SYNC 1 upon start but 0 until start
ICPV 1.0 upon start
I dont know if these are even relevant but wanted to include them


What the heck is going on and what do I need to ensure reliable starting?

Sorry for the long post but sure appreciate your input

 

Does the ICP immediately jump to the 1400+ value? or does it take a bit of cranking to get it there? Have you tried unplugging the ICP when its doing this and see if it changes the way it starts?

 

I just reviewed the video and the ICP jumps immediately I noticed on the no start efforts that it went all the way to 2200 versus 7-800 on the efforts that actually started.

I did not try unplugging icp. I'm not for sure where it is

 

Icp is on the passenger side valve cover. What weight of oil are you running and are you using oem oil and fuel filters?

 

If it is jumping straight to those high numbers I would have to question the ICP sensor, unplug it and check for the presence of oil. Even if there is no oil I would say the ICP sensor is bad. Try starting it with it unplugged.

 

yea always have used OEM filters oil and fuel since I bought it new. Tomorrow I will back it out of the garage and try it without the ICP plugged in. What might it do with it unplugged? If it starts better with it unplugged then what does it do? probably pretty dumb questions but that is where I am sure preeshate yall's help

 

Oh yea, been using synthetic T6 for the last 15-20,000 miles, the last 4 changes that is

 

New icp and or pigtail.

 

Thanks Eric, Is there a way to confirm the need to replace those or will I be able to know by unplugging the one thats in there now? Is the pigtail the portion of the harness that plugs directily into the sensor?

 

I would say based on the ICP reading jumping to those high numbers immediately that the ICP sensor needs to be replaced and if there is oil in the electrical connection you need to replace the pigtail as well.

 

I havn't ordered parts in quite a while, thank goodness, where would think is a good place to order such. Last time I ordered from Tousley

 

I would definitely go with OEM, and depending on if you don't mind waiting I would go with tousley or if you don't want to wait go to your local ford dealer and see if they will price match tousley ford.

 

Ok before I do anything a small update

I went out this morning and pulled the connection off and checked around the sensor. No oil on or around the sensor and connection. very clean

Truck fired right without hesitation. Is ICP sensor still the primary suspect for yesterday's episode of smoke and no start?

 

Did the truck start with the ICP disconnected? Either way yes the ICP was reading a false high pressure causing the IPR to be too far open and there wasn't adequate pressure to operate the injectors. The PCM uses the ICP value amongst other things to determine what to set the IPR% so if it is giving a false reading it will make the IPR do the opposite of what it needs to do.

 

Here is the link to tousley ford parts page with the ICP sensor, https://parts.autonationfordwhitebea...subcat2=170967