6.0 dually starts hard in cool weather. - Ford Powerstroke Diesel Forum
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post #1 of 8 Old 05-19-2009, 05:55 AM Thread Starter
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6.0 dually starts hard in cool weather.

I saw this post from someone else and I am having a similar problem. My parents have a 03 6.0 dually, that they bought used in Florida. Never been out of the state of Florida. They are in Wisc. for the summer months, and are having a little trouble starting it. Below 45 50 degrees she will start, but it bucks and kicks and smokes until it gets warm. then it will run fine. Once its warm, keeps restarting no problem. I was in florida when they bought it and it started every morning no problem. But, it was also 65 70 degrees when we were starting it. Any ideas??? Could it be the cold start flash, if so, how can I check that it was done, how do I get it done, and do I have to pay for it? Thanks a bunch.

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post #2 of 8 Old 05-19-2009, 06:07 AM
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Hey Cheesehead,
How's Port Washington this fine morning.
I would check the glow Plug Relay. It sounds funny but my Excursion did the same thing.
It was covered under warranty.

2006 King Ranch Crew Cab
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2006 TrailBlazer SS (wife's truck)
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1937 Ford 2 door humpback
project in the works
350 V8 Mustang front suspension
chopped 4"
should be cool when done

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post #3 of 8 Old 05-19-2009, 07:32 AM Thread Starter
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Is there anyway I can test this relay before I go spend 230 bucks on it???? P.s. can u send pictures of the mustang? I am building a 68 and want to do some of the same things u did to yours.

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Last edited by cheesehead; 05-19-2009 at 07:35 AM.
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post #4 of 8 Old 05-19-2009, 07:50 AM
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Not sure about testing it, however if you do a search on the site I bet you could find out.

I'll pm photos to you

2006 King Ranch Crew Cab
Level kit
20" rubber
Boyd Rims
100 hp Snyper tune and a 5" exhaust
1966 Mustang
300 hp 302/289 heads
4 wheel disc brakes
Fresh paint
2006 TrailBlazer SS (wife's truck)
395hp LS2 (Fast and Fun)
AWD
1937 Ford 2 door humpback
project in the works
350 V8 Mustang front suspension
chopped 4"
should be cool when done

Polaris winter toys
Honda atv All weather toys
RacingKarts
Also I powdercoat anything & everything
I'm just a big kid
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post #5 of 8 Old 05-19-2009, 08:00 AM
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doesnt have a relay on a 6.0 a module and the pcm tests it , if there was a problem, the check engine light should come on, do the reflash , sounds like injectors sticking to me

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post #6 of 8 Old 05-19-2009, 08:09 AM
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OK i did not know My excursion was a 7.3

2006 King Ranch Crew Cab
Level kit
20" rubber
Boyd Rims
100 hp Snyper tune and a 5" exhaust
1966 Mustang
300 hp 302/289 heads
4 wheel disc brakes
Fresh paint
2006 TrailBlazer SS (wife's truck)
395hp LS2 (Fast and Fun)
AWD
1937 Ford 2 door humpback
project in the works
350 V8 Mustang front suspension
chopped 4"
should be cool when done

Polaris winter toys
Honda atv All weather toys
RacingKarts
Also I powdercoat anything & everything
I'm just a big kid
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post #7 of 8 Old 05-19-2009, 04:24 PM Thread Starter
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Quote:
Originally Posted by SCUFFY828 View Post
doesnt have a relay on a 6.0 a module and the pcm tests it , if there was a problem, the check engine light should come on, do the reflash , sounds like injectors sticking to me
Not to sound stupid, how do I do the reflash. New at this sorry for the questions.

Dan

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post #8 of 8 Old 05-19-2009, 05:31 PM
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Quote:
Originally Posted by cheesehead View Post
Not to sound stupid, how do I do the reflash. New at this sorry for the questions.

Dan
the reflash has to be done at the ford dealer , its a software program that is designed justy for cold start issues , which is common with the 6.0

there are no stupid questions , thats why we are here to help each other out

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