longer cranking
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Elder User
Joined: Apr 2009
Posts: 559
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From: Franklin, Georgia
I checked my rpm at cranking today when I left work and the scan gauge showed 177 rpm. 177 sounds a little slow to me. Do you know what your is. Or could you check so I have a comparison. I will be cleaning all battery connections and also the starter connection when the ground Dries up some.
Lead Driver
Joined: Feb 2011
Posts: 8,241
Likes: 155
From: L.A. (Lower Alabama)
Specifically, it says the PCM must see 100rpm to start. I take that to mean <100 and it's not going to fire. Kinda like the 9v req for the FICM to fire. Healthy batteries will hold a higher voltage but below that amount start will be inhibited.
#8 here: https://www.ford-trucks.com/forums/8...condition.html
#8 here: https://www.ford-trucks.com/forums/8...condition.html
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Elder User
Joined: Apr 2009
Posts: 559
Likes: 0
From: Franklin, Georgia
alright so it seams the starter is turning the engine fast enough. when you watched the video what do you think abut how long it took to fire up. am i just being paranoid or something? i just know it used to fire up faster than it does now.
Hotshot
Joined: Apr 2010
Posts: 19,055
Likes: 235
From: Saratoga Springs,UT
Specifically, it says the PCM must see 100rpm to start. I take that to mean <100 and it's not going to fire. Kinda like the 9v req for the FICM to fire. Healthy batteries will hold a higher voltage but below that amount start will be inhibited.
#8 here: https://www.ford-trucks.com/forums/8...condition.html
#8 here: https://www.ford-trucks.com/forums/8...condition.html
Ya Im with ya^^^
Its one of those numbers that needs Updated
A guy with a Burned starter had around 110rpm the other day
Guess all Im really saying Eric is that when everythings at 100% Batterys & starter & A/C Freed up not locked that 160-180rpm is normal
Lead Driver
Joined: Feb 2011
Posts: 8,241
Likes: 155
From: L.A. (Lower Alabama)
Just to compare to my truck, yes, mine usually starts faster than that. Maybe 1 out of 20 times it starts just like yours did. I also noticed my IPR begins dropping maybe 10sec after cranking and slowly drifts down from 1150ish to a 680ish in the first 60-90 seconds of running and settles into a solid 580 when fully warmed up. I don't know for sure but I suspect that has something to do with the flash version in the truck. Some trucks seem to stay at 850 fully warmed up.
Do you think this could have something to do with glow plugs? On most of my cold starts it's 530am and very quiet here. I flip my key on and the injector buzz quits, glow plug light goes out and my fuel pump buzzes for another 20seconds or more. I wait for the fuel pump to quit before cranking. The glow plugs are on that whole time and truck fires almost instantly when I turn the key.
Do you think this could have something to do with glow plugs? On most of my cold starts it's 530am and very quiet here. I flip my key on and the injector buzz quits, glow plug light goes out and my fuel pump buzzes for another 20seconds or more. I wait for the fuel pump to quit before cranking. The glow plugs are on that whole time and truck fires almost instantly when I turn the key.
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Lead Driver
Joined: Feb 2011
Posts: 8,241
Likes: 155
From: L.A. (Lower Alabama)
Thread Starter
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Elder User
Joined: Apr 2009
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From: Franklin, Georgia
well i too leave the house at 530am. i also wait untill everything has stopped the cycle before cranking. i have in the back of my head said maybe glowplugs but i was under the impression that if there is a issue with the glow plugs you would get a code. i have no codes what so ever. i also most the time turn off the a/c and or heat.unplug things from the 12v plug when i get home in the evenings and such.
Lead Driver
Joined: Feb 2011
Posts: 8,241
Likes: 155
From: L.A. (Lower Alabama)
Me too. I have missed the seat heater for a few days, my wife will leave hers on sometimes 
.
I also think the glow plugs seem pretty good about setting a code. At least for the individual plugs being bad. Just a couple of months ago I got a cel and pulled a P0678. New #8 plug and all was well. Just an observation that with one bad plug the truck still started the same as far as I noticed. The code is for the plug being open and it read 17ohm when I pulled it so not sure if it was heating or not. I was thinking more of the GPCM switching off early or low power output that is flying under the PCM's radar. Just thinking out loud really as looking at the info you've posted seems to me like the truck should be firing right up.
. I also think the glow plugs seem pretty good about setting a code. At least for the individual plugs being bad. Just a couple of months ago I got a cel and pulled a P0678. New #8 plug and all was well. Just an observation that with one bad plug the truck still started the same as far as I noticed. The code is for the plug being open and it read 17ohm when I pulled it so not sure if it was heating or not. I was thinking more of the GPCM switching off early or low power output that is flying under the PCM's radar. Just thinking out loud really as looking at the info you've posted seems to me like the truck should be firing right up.
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Elder User
Joined: Apr 2009
Posts: 559
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From: Franklin, Georgia
i agree it should be. im going to try something in the morning. ill turn on the key, wait till everything has stopped and then wait a few more seconds then try to crank her up. it should either shorten, stay the same or make it longer to fire up. so we will see. im glad im not the only one who feels its a little long to fire up.
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Elder User
Joined: Apr 2009
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From: Franklin, Georgia
Well no change this morning when I started the truck. Still long cranking. But I have a hour drive to work and when I got about a couple miles from work I stopped at a light and saw a clowd of smoke pass by the window. I watched in the mirror and it was the truck. It was white smoke and not constant. A puff here and there. Until I went to take off it was a good cloud then. But one I started moving I didn't see anymore. Until I stopped to turn it was a little then. Not sure if its coolant or oil. I didn't think to check oil temp or coolant temp but gauge on dash for coolant was normal. Which don't say a whole lot.
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Elder User
Joined: Apr 2009
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From: Franklin, Georgia
I left work this afternoon and no smoke at startup or the whole ride home. I stopped for fuel about half way home and when I went to restart the truck it was a long start meaning it was like it started foreign one or two injectors the gradually fire the rest. Hard to explain. Still no codes. I did check water and oil temps water high was 196*f and high oil was 204*f that was also the highest spread and didn't last long either. I'm not getting this at all. Don't make sence to me. I was hoping it would smoke this afternoon so I could get a sniff and see if it was oil or coolant. But it didn't do it.
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Elder User
Joined: Apr 2009
Posts: 559
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From: Franklin, Georgia
Well same this morning. Smokes white here and there not all the time. This afternoon after work never smoked. Maybe only does it when a little cool outside. Truck runs fine when it smokes. Not rough. Not low on power. What could cause it to smoke sometimes? I'm working at the fire station tonight so ill see what it does when I head home in a few hours.