acf6
New member
I have a new problem recently that i was hoping would just be a random fluke, but its happened 4 times in 3 days now so im thinking its probably not...
I have a 2003 F350 6.0L, ARPs, oem gaskets, coolant filter, egr delete, looney wild tune, new icp sensor/harness (dont see any oil coming out of it) when we did the work (around 100k, at 116k now).etc etc... pretty much new orings on everything we touched while doing the work. Before i bought it the truck sat for a year, only being driven on weekends here and there, not sure if that would play a part in this
The problem is very random long cranks when hot. First time i drove my truck about 40 mins, came back 2 hours later and it cranked for easily 10 seconds before i gave up. Turned key off/back on and gave it another shot and it fired right up. the other 3 times it sat for an hour, and twice only like 5 minutes. when cranking it sounds completely normal, just takes 10-15 seconds. once it fires up it sounds normal like it only cranked 2 seconds. if this was an 05+ id think STC fitting, but i am thinking i have an HPO leak somewhere? I have a small knowledge of 6.0s but not sure on this one. FICM voltage is 48+, ICP voltage seems good, ICP also seems good (doesnt get very high, but was told the tune can limit this) but my IPR seems a little low. Hot idle it sits around 19-20%. Any ideas would be great, thanks!!
Also, i have access to auto enginuity (just have a scangauge in my truck) so if theres any other values i should check, let me know
I have a 2003 F350 6.0L, ARPs, oem gaskets, coolant filter, egr delete, looney wild tune, new icp sensor/harness (dont see any oil coming out of it) when we did the work (around 100k, at 116k now).etc etc... pretty much new orings on everything we touched while doing the work. Before i bought it the truck sat for a year, only being driven on weekends here and there, not sure if that would play a part in this
The problem is very random long cranks when hot. First time i drove my truck about 40 mins, came back 2 hours later and it cranked for easily 10 seconds before i gave up. Turned key off/back on and gave it another shot and it fired right up. the other 3 times it sat for an hour, and twice only like 5 minutes. when cranking it sounds completely normal, just takes 10-15 seconds. once it fires up it sounds normal like it only cranked 2 seconds. if this was an 05+ id think STC fitting, but i am thinking i have an HPO leak somewhere? I have a small knowledge of 6.0s but not sure on this one. FICM voltage is 48+, ICP voltage seems good, ICP also seems good (doesnt get very high, but was told the tune can limit this) but my IPR seems a little low. Hot idle it sits around 19-20%. Any ideas would be great, thanks!!
Also, i have access to auto enginuity (just have a scangauge in my truck) so if theres any other values i should check, let me know
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