Rough start, bad mpg - Ford Powerstroke Diesel Forum
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post #1 of 15 Old 02-20-2012, 06:36 PM Thread Starter
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Rough start, bad mpg

Earlier this fall i had new glow plugs/block heater installed. Now that its winter if cranks for almost 30 seconds before it starts, and that's with it plugged in. It cranks for a minute or two, sometimes longer, when not plugged in. I've also never got very good mpg with it either. When i bought it, it had an 8 in lift with 38's on it...but i didn't like it so i sold the lift and tires for a leveling kit and 32 in tires, and still didn't get any better mileage. I also deleted the muffler, cat, and did a complete egr delete and can't seem to get over 12 mpg... is this all related?


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2006 King Ranch: Sinister EGR Delete, SCT tuner with Looney tunes, Edge Insight CTS, 5" turbo back exhaust with 6" tip, Bulletproof oil cooler, Updated Stc fitting, S&B intake, Sinister coolant filter, halo projector headlights/tail lights, drilled and slotted rotors, Mad Turbo Werks hybrid turbo
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post #2 of 15 Old 02-20-2012, 07:30 PM
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Does it idle rough on start-up? Any smoke?

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post #3 of 15 Old 02-20-2012, 08:44 PM Thread Starter
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Yes at first start up it idles rough and i get some white smoke... but as soon as it starts up everything smooths out and the exhaust clears up


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2006 King Ranch: Sinister EGR Delete, SCT tuner with Looney tunes, Edge Insight CTS, 5" turbo back exhaust with 6" tip, Bulletproof oil cooler, Updated Stc fitting, S&B intake, Sinister coolant filter, halo projector headlights/tail lights, drilled and slotted rotors, Mad Turbo Werks hybrid turbo
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post #4 of 15 Old 02-21-2012, 06:26 AM
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What's your FICM voltage? Under 46V at any time and it needs to be replaced.

2005 - Excursion - Eddie Bauer - 4x4

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post #5 of 15 Old 02-21-2012, 06:45 AM
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Quote:
Originally Posted by Fishermedic View Post
What's your FICM voltage? Under 46V at any time and it needs to be replaced.
I bet your FICM is toast


2006 F350 SOLD
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New truck has a Cummins and a handshaker
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post #6 of 15 Old 02-21-2012, 06:48 AM
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+3 on the FICM

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post #7 of 15 Old 02-21-2012, 10:12 AM Thread Starter
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When it runs it usually stays around 47.5 and during start up never drops below 46... atleast thats what my edge evolution insight shows


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2006 King Ranch: Sinister EGR Delete, SCT tuner with Looney tunes, Edge Insight CTS, 5" turbo back exhaust with 6" tip, Bulletproof oil cooler, Updated Stc fitting, S&B intake, Sinister coolant filter, halo projector headlights/tail lights, drilled and slotted rotors, Mad Turbo Werks hybrid turbo
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post #8 of 15 Old 02-21-2012, 10:44 AM
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Mine never drops below 48V.

White 04 F350 Lariat SRW/CC/LB/FX4 227,XXX+
Studs/BPD58V FICM Atlas40/BPD oil cooler/waterpump/7.3 fan
Edge insight CTS EGT/Turbo timer/FP SCT with ? Tune
Powermax w/KC billet wheel Warren 175/30%
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aFe Stage2/EGR Delete



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post #9 of 15 Old 02-21-2012, 12:21 PM
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Quote:
Originally Posted by ZachMyers View Post
When it runs it usually stays around 47.5 and during start up never drops below 46... atleast thats what my edge evolution insight shows
Mine did the same thing, until one cold day, it was at 36v. I had blueish smoke during warmup, and some rough idles at times. You need to check it at the FICM, during cranking. I have the Edge Insight, and it just doesn't read fast enough to catch it during the short starting procedure


2006 F350 SOLD
* KMC XD Monsters wrapped in Hankook ATM's
* 08 style mirrors
* 4" TB exhaust
* SCT X2 with Gearhead, PHP and ID tunes
* Edge Insight CTS

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* Blue FPR spring
* 6.4 Banjos

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* Dfuser coolant filter
* Stage1 MTW turbo
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New truck has a Cummins and a handshaker
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post #10 of 15 Old 02-21-2012, 11:43 PM Thread Starter
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Ok I plan on doing a load test on my batteries tomorrow, and then doing a voltage test on the ficm...if it does need repaired is it worth it to do 58v upgraded ficm... ficmrepair.com says its a bad idea because a normal ficm gets hot enough just being under the hood...and adding extra volts means for extra stress


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2006 King Ranch: Sinister EGR Delete, SCT tuner with Looney tunes, Edge Insight CTS, 5" turbo back exhaust with 6" tip, Bulletproof oil cooler, Updated Stc fitting, S&B intake, Sinister coolant filter, halo projector headlights/tail lights, drilled and slotted rotors, Mad Turbo Werks hybrid turbo
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