Runs rough when cold. - Ford Powerstroke Diesel Forum
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post #1 of 19 Old 06-10-2012, 08:59 AM Thread Starter
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Runs rough when cold.

Ok so i am not looking forward to hear the answer to this but here goes. i have a 2006 6.0 and when i go to start it in the morning it turns over longer than it should before it starts. Then it takes a few mins before it runs worth a crap. about a mile and a half. After that it runs great with no issues. No white smoke and no other problems. Any ideas whats going on?????

new truck
2006 6.0
2.5 leveling kit
full mbrp exhaust
s&b intake, sct looney

old truck
Early 99 7.3
Precision Metal fab 4" lift
18x9 XD rockstars
35x12.50 trail grapplers
05 grille
WAAG Brush guard
Boost & EGT
4" exhaust
Bullydog 4 position chip


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post #2 of 19 Old 06-10-2012, 09:18 AM
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I had the same issue with my 06 6.0....Check your ficm voltage and batteries...any dtc's?
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post #3 of 19 Old 06-10-2012, 09:24 AM Thread Starter
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Well how do you check the ficm voltage. And what is dtcs

new truck
2006 6.0
2.5 leveling kit
full mbrp exhaust
s&b intake, sct looney

old truck
Early 99 7.3
Precision Metal fab 4" lift
18x9 XD rockstars
35x12.50 trail grapplers
05 grille
WAAG Brush guard
Boost & EGT
4" exhaust
Bullydog 4 position chip


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post #4 of 19 Old 06-10-2012, 09:38 AM
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There is a way to check your ficm voltage with a volt meter. You can do a search on this forum how to check it using a volt meter. I use a scan tool that plugs into my obdII port.

DTC are diagnostic trouble codes that may or may not turn on your check engine light which can also be checked using a scan tool. I used the auto enginuity tool and/or a torque app for my smart phone.

My ficm voltage at KOEO (key on engine off) was at 38 volts and truck ran rough, bucked and had no power for about 3 minutes...also blew a little white smoke. Your ficm voltage should never be less than47 volts.

I sent my ficm to ficmrepair.com and were very helpful. Sent it to them and had it back all within 5 days
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post #5 of 19 Old 06-13-2012, 06:09 PM Thread Starter
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ok so i just checked my ficm voltage and i was hoping that was the problem but it was at 48.5 with key on engine off and while running. What now??

new truck
2006 6.0
2.5 leveling kit
full mbrp exhaust
s&b intake, sct looney

old truck
Early 99 7.3
Precision Metal fab 4" lift
18x9 XD rockstars
35x12.50 trail grapplers
05 grille
WAAG Brush guard
Boost & EGT
4" exhaust
Bullydog 4 position chip


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post #6 of 19 Old 06-13-2012, 06:13 PM Thread Starter
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also it runs bad when engine is cold not cause temp outside is cold. its summer. just clearing that up

new truck
2006 6.0
2.5 leveling kit
full mbrp exhaust
s&b intake, sct looney

old truck
Early 99 7.3
Precision Metal fab 4" lift
18x9 XD rockstars
35x12.50 trail grapplers
05 grille
WAAG Brush guard
Boost & EGT
4" exhaust
Bullydog 4 position chip


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post #7 of 19 Old 06-13-2012, 06:32 PM
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did you check your FICM when the truck was cold (i.e. had not run for several hours)?

MikeB

2005 F-250 6.0L, crew cab, long bed 4x4
completed in 2011: STC update, new IPR, BPD EGR cooler, oil cooler rebuild, 6.4 banjo bolts, blue spring update, SCT X3, Insight CTS, 58V FICM, CCV Mod, DIY coolant filter (now gone), refinished turbo
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2012: ARP headstuds, OEM gaskets, standpipes and dummy plugs
2015: XDP coolant filter
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post #8 of 19 Old 06-13-2012, 06:34 PM Thread Starter
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its been sitting for 4 days when i checked it

new truck
2006 6.0
2.5 leveling kit
full mbrp exhaust
s&b intake, sct looney

old truck
Early 99 7.3
Precision Metal fab 4" lift
18x9 XD rockstars
35x12.50 trail grapplers
05 grille
WAAG Brush guard
Boost & EGT
4" exhaust
Bullydog 4 position chip


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post #9 of 19 Old 06-13-2012, 06:36 PM
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Quote:
Originally Posted by mpage18 View Post
ok so i just checked my ficm voltage and i was hoping that was the problem but it was at 48.5 with key on engine off and while running. What now??
just showing 48 volts does not mean your ficm is ok.

Sent from my SCH-I500

Unfortunately had to Sell my ......2004 KR CC SWB FX4 - Edge insight cts, blue spring upgrade, updated HFCM drain plug, XDP coolant filter, CAT EC-1 rated coolant, Custom Diesel EGR delete, CAT delete, Rotella T6

SEE MY OIL COOLER REPLACEMENT AND EGR DELETE -
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post #10 of 19 Old 06-13-2012, 06:37 PM Thread Starter
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alright then? so what now! should i just take it to get checked out or is there something else i can test.

new truck
2006 6.0
2.5 leveling kit
full mbrp exhaust
s&b intake, sct looney

old truck
Early 99 7.3
Precision Metal fab 4" lift
18x9 XD rockstars
35x12.50 trail grapplers
05 grille
WAAG Brush guard
Boost & EGT
4" exhaust
Bullydog 4 position chip


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