06 long time to crank when cold

[06inGA]

Long-time member, first time post.

My '06 takes a long time to crank when the engine is cold. Cranks normal when it is warm. Truck has 2 batteries last year that are at 12.65 volts each, new injectors, new glow plugs and a new starter. It has gotten worse in the past month or so. Truck spins over quickly and when it starts it runs smooth. No power loss or rough running.

Any ideas? Thanks!

[amdriven2liv]

In the past month, has your area been colder than normal? What oil are you using?

[Goose350]

Need to monitor ICP while cranking. Do you have access to a scan tool that can monitor ICP?

[06inGA]

Forgot to mention the oil. Using Rotella Synthetic 5W-40.

[06inGA]

Goose350 - Don't have a scan tool other than my Edge Juice Platinum. I don't know if it monitors or not but I can check. Do I assume that would be fuel pressure I would be monitoring?

[w_huisman]

Check FICM voltage. Failing FICMs cause hard cold starts.

IPR values are used to determine whether or not there is a HPO system leak, which typically present as a hard/no start when hot.

[6.0junky]

I got an icp fault code show up twice on my info center when it took a long time to crank it, does that mean its just a sensor or still check ficm?

[Goose350]

Originally Posted by 06inGA

Goose350 - Don't have a scan tool other than my Edge Juice Platinum. I don't know if it monitors or not but I can check. Do I assume that would be fuel pressure I would be monitoring?

ICP is injection control pressure, not fuel pressure. The Edge won't monitor icp

[w_huisman]

If you are getting codes that point at the ICP, then it could be the ICP. But still test the FICM.

The FICM is the more usual culprit of hard/no start when cold, and it costs you nothing but a few minutes of your time to do it.

[06inGA]

How do I chck the FICM voltage? Something an amateur mechanic can do?

I am not getting any codes yet but it is even more frustrating b/c I can't use my remote start!