Cold Start??? - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 11-30-2011, 02:23 PM Thread Starter Fanatic
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Cold Start???

Hi everyone i'm new to the 6.0 diesel and need some advice on the starting issue i have. I have a 2005 f550 with 140000 miles on it. I go to start it in the morning and i have to hold the key for pretty long to get it to turn over but after the first time it will start up no problem. Also when it high idle how high should the rpms be? It just doesnt sound like its high enough compare to my cummins truck.

Thanks for the help
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post #2 of 2 Old 11-30-2011, 04:35 PM
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Do you have a way to monitor FICM Voltage, or battery voltage? Either one of these is where I would probably look first.

Also, depending on temperature outside, high idle will be anywhere from 800-1100 or so, at least that's how my truck is. However, I have also modified mine for 1200rpm high idle, controlled with one of my upfitter switches.

And also, A 6.0 is not a cummins, so beyond diesel fuel, no comparison! Lol!!

2006 F250 Lariat FX4:
MBRP 4" Turbo Back Exhaust
Blue FPR Spring
Edge Insight CTS
1200rpm High Idle Mod
Dieselsite Coolant Filter
58v Swamps FICM
SCT w/ Matt's SRL Tune

2006 F250 Lariat CC FX4

Current Mods:
4" MBRP Exhaust
58v FICM w/ performance flash
Blue FPR Spring
SCT w/ tunes from Matt (SRL, 8k Tow, Unlim. Tow)
Edge Insight CTS
1200rpm High Idle
Coolant Filtration System
6.4 Banjo Bolts
ARP Head Studs
EGR Delete

Sold: 1997 F250 PSD 4x2 5 speed
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