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2008 V-10 No Start

  #16  
Old 02-14-2016, 10:36 AM
300sflyer
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Ok so here we are almost a year later, and its acting up again in cold weather. -25C here last night. Obviously all the parts replaced last year did not solve the problem. The truck ran perfectly all summer. Bring some frigid temps back, and here we go again....

Tired of throwing parts at it, and hoping it is the right one!

Thanks for your thoughts!
 
  #17  
Old 02-14-2016, 01:08 PM
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Originally Posted by 300sflyer View Post
Ok so here we are almost a year later, and its acting up again in cold weather. -25C here last night. Obviously all the parts replaced last year did not solve the problem. The truck ran perfectly all summer. Bring some frigid temps back, and here we go again....

Tired of throwing parts at it, and hoping it is the right one!

Thanks for your thoughts!
Cold weather start problems are basic spark, fuel or mechanical issues. My checklist would be

A. Is the oil 0w20
B. Is the battery delivering the right amount of amps
C. Is there water in the fuel filter that froze and is blocking fuel delivery.
D. Spark plugs could be a factor of never changed in 100k miles.

If the battery spins up the motor quickly get a spray bottle and skirt some fuel in the intake while someone else turns the key and if it starts for a few seconds my money is on water being froze in the fuel filter or lower fuel lines. Dry gas is your friend.
 
  #18  
Old 02-14-2016, 01:58 PM
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Originally Posted by speakerfritz View Post
Cold weather start problems are basic spark, fuel or mechanical issues. My checklist would be

A. Is the oil 0w20
B. Is the battery delivering the right amount of amps
C. Is there water in the fuel filter that froze and is blocking fuel delivery.
D. Spark plugs could be a factor of never changed in 100k miles.

If the battery spins up the motor quickly get a spray bottle and skirt some fuel in the intake while someone else turns the key and if it starts for a few seconds my money is on water being froze in the fuel filter or lower fuel lines. Dry gas is your friend.
A B C D have all been checked. It will start up and continue running the first time its started. Its when you turn it off for a few minutes, and then try to restart the problem occurs. But ONLY when its very cold outside! As stated at the beginning of the thread, it turns over just fine, but wont fire the second time. Wait another 10-15 minutes, and it starts and runs fine again all day long.

 
  #19  
Old 02-15-2016, 11:48 AM
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Anyone else have any ideas? My local mechanic is baffled too. There are no codes stored when it happens. Of course it won't do it when he has it at his shop.... He suggested maybe taking it to the local Ford dealer. I dread the thought of that...
 
  #20  
Old 02-22-2016, 01:46 AM
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Crank sensor could cause a no start condition, but usually it would do it every time.

You can hear the fuel pump priming? You checked fuel pressure?

Air, fuel spark.

If all those look good, the crank sensor is the only sensor I am aware of that would not allow you to start your truck up.
 
  #21  
Old 01-06-2018, 10:10 AM
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I know this thread is a few years old, but I'm still having issues.

Had to get a brand new battery this past week as it has been very cold, and I was having cranking issues. The new battery solved that.

Anyway, it was -28C here this morning and it fired right up. Moved the truck in the driveway to blow out the snow. Came back 10 minutes later to move it back, and it won't start. Cranks over perfectly, but will not run. Let it sit for 10 min, tried it again and it fires right up again...

The crank sensor was changed 2 years ago, so I'm still baffled by this intermittent problem! As stated before, it only acts up when its really cold.
 
  #22  
Old 11-07-2018, 02:16 PM
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I realize this is an old thread but I am having almost the exact same issues on my 01' V10 Excursion with 85K miles. My issue is also after running for a short time then having starting problems. Not as cold where I am but still symptoms are very similar. I am hesitant to replace fuel pump due to cost, will only run Motorcraft. I have replaced IAC, fuel pump relay, checked fuel pressure.

May start a new thread, could help others maybe?

Any updates? Hopefully you solved your issues
 
  #23  
Old 11-07-2018, 02:55 PM
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My new neighbor happens to be the service manager at my local Ford dealer. He came over one afternoon this past summer, and checked just about every electrical connection on the engine including the computer. We didn't find a thing.... I'm hoping that there was possibly a loose connection somewhere, or a bit of corrosion. Guess I will find out soon enough when the temperatures start dropping again...
 
  #24  
Old 11-08-2018, 08:30 AM
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Thinking about it, it sounds like you have a connection problem somewhere. It starts fine when it's cold, but once you heat it up (metal expanding) you can't start it again until it's cooled off. I would definitely be focused on the electrical since you've mentioned already checking out the fuel and spark systems.

Maybe there's a solenoid sticking somewhere, I'm not especially familiar with the electrical in these trucks (yet) but an old solenoid could be getting stuck when hot.
 
  #25  
Old 11-08-2018, 08:36 AM
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The funny thing is, it starts and runs fine all summer long in the heat... I'm just hoping it starts and runs fine this coming winter.
 
  #26  
Old 11-08-2018, 10:58 AM
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Originally Posted by 300sflyer View Post
The funny thing is, it starts and runs fine all summer long in the heat... I'm just hoping it starts and runs fine this coming winter.
Yeah that's strange.

So, if I'm understanding correctly, in the winter it starts fine until you warm it up, then it won't until it cools. During the summer, it starts fine cold, and starts fine hot after running it? Really unusual.
 
  #27  
Old 11-08-2018, 11:10 AM
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Close... If I leave it running in the winter, there are no issues. If I try to restart it after 3-4 minutes of running when the outside temperatures are extremely cold, [below -15-20C] it will "sometimes" not re-start. [But still cranks] Come back 5 or 10 minutes later, and it fires right up. No issues at all during the spring, summer, or fall.
 
  #28  
Old 11-08-2018, 11:39 AM
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I've never lived in a place that gets down as cold as that, so this might be a stupid question. If you kill the engine and let it set for 10-20 minutes, is that enough time for the engine to cool down to freezing temperatures?

It's a bit of a long shot and a wild guess, but I'm wondering if maybe there's moisture around your plugs/boots and when it melts it's causing a situation where the spark isn't good or isn't happening, but is fine once it refreezes. Again, a long shot to say the least. Would be a good time to clean/examine/replace any boots if needed.
 
  #29  
Old 11-08-2018, 01:01 PM
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After its been running, it would take a few hours to completely cool off again. Plugs and boots are in good shape. I don't believe they are the issue.
 
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