Join Date: Jul 2012
Location: Sacramento area
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Having some problems and hoping to get pointed in the right direction.
I have had my truck about 6 months, and have an intermittent long cranking condition. Usually only the first start of the day, but sometimes it happens when warm, but not up to operating temp. If I stop cranking ant try again it always fires up.
I recently replaced the oil cooler, EGR cooler, IPR valve, batteries and rebuilt the FICM.
I have a dashboss monitoring system, so I can see most every parameter.
Here's what I usually see:
battery about 13.1 immediately after start and then climbs to 13.4 or 13.6
FICM Usually stays between 47and 48. Occasionally drops to 46 and peaks at 48. Never ever under 45
Fuel pressure around 68psi
Ipr% at idle around 25
ICP PSI at idle around 580-600
By the way I just added AR9100 (like Rev-x) and it sounds great once lit now, but still long crank...
2005 6.0 Lariat Crew Cab 4x4 Short Bed
SCT X3 Tuner, Looney Tune from Quick Tricks
Bulletproof EGR Cooler (I live in CA, smog mecca)
FICM with Atlas40 from FICMrepair.com
Updated Standpipes, Dummy Plugs and STC
4" Turbo Back Magnaflow Exhaust
DC Power 185 amp alternator and wiring upgrade
CAT EC-1 Coolant
Dashboss Monitoring including pyro and fuel pressure
Last edited by fuzzman; 11-23-2012 at 08:40 PM.