Slow crank / Rough start up idle - Ford Powerstroke Diesel Forum
Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 12-10-2012, 08:23 AM
Member
 

Join Date: Apr 2012
Posts: 70
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Slow crank / Rough start up idle

So with the cold season here my truck has been experiencing some new symptoms on startup. I haven't been plugging it in yet just because our temperatures have stayed 30-40 degrees.

On startup after sitting for the night the crank is very slow, probably 1 second per crank. It takes about 7-10 seconds of cranking to start up at times(my buddies 06 6.0 has sounds like it has 5cranks/second). After I drive it for a little and try to start it up immediately after the hard start symptom usually goes away except the crank is still 1sec/crank. The battery has died acouple times while trying to crank it when cold.

On the initial slow crank startup the truck will blow white smoke briefly (3 seconds?) and idle very funky/rough. The engine's loud 6.0 knock isn't prominent until about 20 seconds of sitting.

Batteries replaced (at different times in a year)
New alternator (3rd one in a year)
Had new gaskets/egr delete, etc serviced 6 months ago
Glow plug harnesses were changed
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 12-10-2012, 09:14 AM
Premium Member
 

Join Date: Jan 2012
Location: Gulf Coast
Posts: 5,201
Thanks: 1
Thanked 1 Time in 1 Post
Feedback Score: 1 reviews
Batteries need to be load tested, perform ficm check procedure. Bad batteries kill ficms, quickly. Batteries must be changed in pairs. You need a monitor. Check out ficmrepair.com, your probably going to need it.

Sent from my phone that somebody didn't help me get.
Reply With Quote Quick reply to this message
  #3  
Old 12-10-2012, 09:16 AM
Premium Member
 

Join Date: Jan 2012
Location: Gulf Coast
Posts: 5,201
Thanks: 1
Thanked 1 Time in 1 Post
Feedback Score: 1 reviews
Here....Write Up: Monitoring the 6.0L PSD.

Sent from my phone that somebody didn't help me get.
Reply With Quote Quick reply to this message
  #4  
Old 12-12-2012, 07:03 AM
Member
 

Join Date: Apr 2012
Posts: 70
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Alright update... She starts hard in the morning, and after it warms up from sitting at work for 9 hours she starts fine. I got home and she sat for 8 hours over night with the drop in temperature the and wouldn't start this AM. I took a clunker to work and had my mom take the truck to get the batteries tested.

The driver side battery failed the test, I think they said output was 811?
Passenger side battery passed.
Alternator passed.
Starter passed.

When my mom got the truck tested it had been running for 20 minutes and well warmed up. When she turned the truck off down there and tried to start it back up at one point, it wouldn't start. So I'm going to replace the battery and go from there. (Could glow plugs be at fault for this too?)

FICM hasn't been checked yet. I have the SCT xtreme programmer, does any one know if that can monitor FICM voltage?
Reply With Quote Quick reply to this message
  #5  
Old 12-12-2012, 07:32 AM
Premium Member
 

Join Date: Jan 2012
Location: Gulf Coast
Posts: 5,201
Thanks: 1
Thanked 1 Time in 1 Post
Feedback Score: 1 reviews
Quote:
Originally Posted by Deiboe View Post
Alright update... She starts hard in the morning, and after it warms up from sitting at work for 9 hours she starts fine. I got home and she sat for 8 hours over night with the drop in temperature the and wouldn't start this AM. I took a clunker to work and had my mom take the truck to get the batteries tested.

The driver side battery failed the test, I think they said output was 811?
Passenger side battery passed.
Alternator passed.
Starter passed.

When my mom got the truck tested it had been running for 20 minutes and well warmed up. When she turned the truck off down there and tried to start it back up at one point, it wouldn't start. So I'm going to replace the battery and go from there. (Could glow plugs be at fault for this too?)

FICM hasn't been checked yet. I have the SCT xtreme programmer, does any one know if that can monitor FICM voltage?
Unfortunately changing one battery is a bad idea, the "old" one will drag the new one down. These trucks are hard on batteries, not sure about your sct.

Sent from my phone that somebody didn't help me get.
Reply With Quote Quick reply to this message
  #6  
Old 12-12-2012, 07:53 AM
Compression Ignition Addict
 

Join Date: Oct 2012
Location: Lorain OH
Posts: 544
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Change both batteries and be ready to do the alternator again. A bad battery will kill the alternator as well. Once both batteries are replaced have the FICM tested .....you can kill it quick with a bad battery.
Reply With Quote Quick reply to this message
  #7  
Old 12-12-2012, 08:20 AM
Member
 

Join Date: Apr 2012
Posts: 70
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I'll change both batteries then go from there... argh.. the alternator AGAIN? Thats the 4th one this year!
Reply With Quote Quick reply to this message
  #8  
Old 12-12-2012, 08:22 AM
Compression Ignition Addict
 

Join Date: Oct 2012
Location: Lorain OH
Posts: 544
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Just keep an eye on it. The bad battery is what has been killing alternators.
Reply With Quote Quick reply to this message
  #9  
Old 12-12-2012, 12:58 PM
Member
 

Join Date: Apr 2012
Posts: 70
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Alright question, I just had a battery replaced 3 months ago. Should I still replace both?
Reply With Quote Quick reply to this message
  #10  
Old 12-12-2012, 01:06 PM
Premium Member
 

Join Date: Jan 2012
Location: Gulf Coast
Posts: 5,201
Thanks: 1
Thanked 1 Time in 1 Post
Feedback Score: 1 reviews
Quote:
Originally Posted by Deiboe View Post
Alright question, I just had a battery replaced 3 months ago. Should I still replace both?
Probably, or you might be back to where you are now, i'm sure your ficm isn't healthy either.

Sent from my phone that somebody didn't help me get.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -8. The time now is 06:34 AM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors