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ssslow gggoing when cccold

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Old Nov 1, 2010 | 04:05 AM
  #1  
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ssslow gggoing when cccold

good news/bad news.
Good news is my truck started w/o a hitch at 35* after I replaced the GP's over the summer. (normally wouldn't start at 45* and below w/o plugging it in).
Bad news is I put it in gear/drive and started out and it would not go/rev up at all it just idled. I idled down the road for almost a mile at a crawl and then is slowly started to get reponsive. (I believe this is a fuel problem but I don't know where to start).
Any thoughts???
 
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Old Nov 1, 2010 | 11:04 AM
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I'm not sure...but does it at least rev in neutral? At least you could try and isolate it to the engine.

I don't think you should expect much unburnt fuel/white smoke at that temp at startup with working gps, at least mine doesn't.
 
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Old Nov 1, 2010 | 11:42 AM
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If it does it again tomorrow I will try to rev it in nuetral. Hopefully it was just some kinda blurp that won't happen again.
 
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Old Nov 1, 2010 | 12:32 PM
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Sounds like one of those things you hope was just a blurp, but also hope you can recreate it to track it down...
 
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Old Nov 1, 2010 | 03:54 PM
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Has it done anything like this before? or was this just out of the blue?
 
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Old Nov 2, 2010 | 04:32 AM
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brrr! This morning was colder than yeterday and it did it again for a very short time.
I started it and drove out of my parking spot OK then it did it again (20 seconds after starting/goingt). I did not put it in nuetral b/c I was moving and needed the inertia to get me through the intersection. As I was approaching the intersection it cleared up. It was still "cold sluggish" but the NO REV symptoms had passed.
This is the first time I have experienced this, James. I normaly had it plugged in and it was a fire up and go event.
I do see a draw back from not plugging it in overnight. I hate scraping windows or driving like a contorted Piccaso/Dahli painting trying to find a small clear spot in the windshield untill the heat/defrost kicks in 3+ miles later.
I can't drain the fuel bowl b/c I cant get it to stop leaking if I do. I have a o-ring kit for the fuel bowl/fpr and all that jazz there. I need to put it to use.
Anyway thanks for hearing be micth. brrr!
 
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Old Nov 2, 2010 | 10:06 AM
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Any chance the sensors at the go pedal (forget what they are called TPS? IVS?) are misbehaving? Maybe there is condensation in the truck that is freezing over them over night?
I guess if it does it again tomorrow, in the driveway, you can see if it will rev to eliminate that.
 
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Old Nov 2, 2010 | 12:40 PM
  #8  
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are you letting it warm up before taking off down the road?
 
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Old Nov 2, 2010 | 12:57 PM
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That is a good thought triskadek. If it keeps doing it after I rebuild the fuel bowl I will look in to that.
After I start the vehicle up I wait for oil pressure then I go. It won't warm up at an idle. If I let it run for even 3 hours it will do nothing but **** off the neighbors. I need to drive it to get it up to operating temps (trans temp too)
 
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Old Nov 2, 2010 | 01:23 PM
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Are you due for an oil change ?..
 
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Old Nov 2, 2010 | 03:49 PM
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I am approaching oil change time (the year does end in a even number) but I still have 1-2K left.
This could be a combo of things.
 
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Old Nov 2, 2010 | 04:08 PM
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Would an inappropriate TC lockup have such symptoms? just tossing stuff out there...
 
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Old Nov 2, 2010 | 07:40 PM
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How about the Exhaust valve? Mine used to stay closed on cold days. Acts like an exhaust brake. I just unplugged mine. Solved the problem.
 
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Old Nov 2, 2010 | 09:41 PM
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I think when the episode passed, it behaved like a normal cold engine, ie exhaust valve was closed and felt like it. When the episode was happening, it sounds like the go pedal was unresponsive.

I wonder though, if it felt like it would have stalled if let up on?
 
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Old Nov 2, 2010 | 09:49 PM
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If you're close to freezing outside maybe your fuel is starting to gel? Do you drive with only a small amount of fuel in the tank?

You can try a anti-gel additive.
 
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