No go when cold - Ford Powerstroke Diesel Forum
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post #1 of 10 Old 12-13-2010, 02:52 PM Thread Starter
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No go when cold

i have 05 e350 with 6.0, when it's cold, it doesnt want to go, the rpm go up normaly but it feels like 20,000lb something is holding me from the back, it's getting better and better till i hit normal operating temperature and then it runs fine
could it be some sensor? there is no code
i'm puzzled, nobody seems to know what's up

also i bought the van used from california, do they have the diesels further de-tuned to pass stricter emission laws? and if so is there a way to tune it back to non-california standarts?

any help is appreciated
thanks guys
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post #2 of 10 Old 12-13-2010, 03:00 PM
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How long do you let it warm up? What kind of temperatures do you see?
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post #3 of 10 Old 12-13-2010, 04:19 PM Thread Starter
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Originally Posted by e99f2506sp View Post
How long do you let it warm up? What kind of temperatures do you see?

If i let it warm up for 30 minutes plus ,I'm good to go but I heard the 6.0 don't like long idling(what do they like) plus I can't always sit there and wait half an hour. And I see normal temps, but for the van to drive good, I have to hit normal operating temperature. Anything below that and it doesn't want to go. And I don't mean crazy, racing go. Just drive and not to piss everybody behind me off cuz it takes me half a mile to speed up to 45
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post #4 of 10 Old 12-13-2010, 04:22 PM
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Sounds like you have some injectors going south on you. When the oil temps warm up they run like brand new ,till then if just wont do it..Also check your FICM,,cold weather will really tell on it.

03 6 liter...TEC3, hybrid tuned ficm,running all of power hungry performance handy work, plus i work there..call or email....
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post #5 of 10 Old 12-13-2010, 04:32 PM
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You shouldn't need 30 minutes to warm it up, it should take about 10 on high idle.

Does the engine pull ok, you have to remember also, you have to heat up the rearend fluid, that is going to cause some drag till it's warmed up.

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Last edited by StarDriver; 12-13-2010 at 07:18 PM.
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post #6 of 10 Old 12-13-2010, 04:53 PM Thread Starter
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Originally Posted by georgia diesel View Post
Sounds like you have some injectors going south on you. When the oil temps warm up they run like brand new ,till then if just wont do it..Also check your FICM,,cold weather will really tell on it.
i thought bout FICM too but then i did some research and found this:
The most common symptoms of a failed FICM are: NO START or CONSTANT MISFIRE AT ALL ENGINE TEMPERATURES. Symptoms other than these are not likely to be caused by the FICM module from http://www.fordtechservice.dealercon...FICM_Guide.pdf so i don't know
wouldn't it throw some code?
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post #7 of 10 Old 12-13-2010, 04:57 PM Thread Starter
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Originally Posted by StarDriver View Post
You shouldn't need 30 minutes to warm it up, it shoudl take about 10 on high idle.

Do the engine pull ok, you have to remember also, you have to heat up the rearend fluid, that is going to cause some drag till it's warmed up.
yeah but this is no 'some drag', this is lot of drag
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post #8 of 10 Old 12-13-2010, 05:31 PM
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you definitely need to check your ficm voltages. i never would have believed this would do it until a new ficm fixed my truck. I definitely had a lack of power cold with no misfires. my ficm mpwr was only 42v until my ect hit 140 or higher.

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post #9 of 10 Old 12-13-2010, 06:13 PM Thread Starter
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Originally Posted by sinner6.0L View Post
you definitely need to check your ficm voltages. i never would have believed this would do it until a new ficm fixed my truck. I definitely had a lack of power cold with no misfires. my ficm mpwr was only 42v until my ect hit 140 or higher.
Hmmm...interesting
I'll have that checked. Is it something any mechanic could do or do I have to take it to stealership?
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post #10 of 10 Old 12-19-2010, 04:29 PM Thread Starter
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All right people, here is an update of my problem. First of all, thanks everybody for your input and getting me to think about the FICM.
I did some research and found an article on how to diagnose and fix bad FICM at http://www.ford-trucks.com/ford-manuals/FICM.pdf, followed the instruction and sure enough my readings with cold engine were in 30'sV. Took it appart, re-solder some conections put it back together and got 47-48 volts
What a difference!!!!!!!!!!! 100% better
Whoever wrote the article- THANK YOU
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