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Old 08-07-2012, 11:14 AM
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Getting Frustrated!

So, I continue to have some issues since having the EGR delete done earlier in the spring. At the time I noted that the power was down, but in the cool weather the EGTs seemed in check. Now that the warmer weather is here, I am seeing EGTs that are about 150-200* higher than normal. Just as an example, I was coming home from camping this weekend (about 10K lbs with my camper on the truck) and hit 1400* while passing a truck and trailer up a mountain pass with a tow tune. Engine temps never move above half which is a good sign. Now, I did put a winch bumper on it a couple of months ago but I tried to make sure there was adequate airflow into the grill. Maybe I need to make some sort of deflector under the bumper to deflect air upwards. Anybody have any suggestions? Air filter has less than 7K on it and all boots are tight and don't appear to be leaking. I have been having more and more starting issues lately also, which I suspect is the FICM telling me it's time to be replaced. Could a bad FICM cause high EGTs? I just ordered a Scangauge II this morning to help monitor some stuff to see if I can figure out what's up.
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Old 08-07-2012, 11:19 AM
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Here's a pic of the bumper just so people can see the flow available.
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Getting Frustrated!-frontbumper.jpg  
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Old 08-07-2012, 11:34 AM
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How many miles on the truck? Does it still have the catalytic converter in place? If so, could it be getting clogged up?

I have done a bit of internet research, but have not really found a good answer on when to replace the cats on these things, or how to tell when they are getting clogged.
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Old 08-07-2012, 11:47 AM
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Ficm will cause high egts.
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Old 08-07-2012, 11:49 AM
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Quote:
Originally Posted by jcm3 View Post
How many miles on the truck? Does it still have the catalytic converter in place? If so, could it be getting clogged up?

I have done a bit of internet research, but have not really found a good answer on when to replace the cats on these things, or how to tell when they are getting clogged.
The truck hasn't had cats for over 5 years otherwise I would certainly agree with that theory.

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Originally Posted by mantis118 View Post
Ficm will cause high egts.
That's kind of what I suspected.
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Old 08-07-2012, 01:59 PM
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When you were passing or leave from a stop with a load does the engine fan make alot of noise. If not you might have a bad fan clutch, also change thermostat if it's old, not that expensive.
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Old 08-07-2012, 02:07 PM
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Do you have any way of checking for codes? I had my ficm repaired by fircmrepaire.com Fast turn around and they can even tune it for you if you want.
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Old 08-07-2012, 02:39 PM
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Quote:
Originally Posted by letitsno View Post
When you were passing or leave from a stop with a load does the engine fan make alot of noise. If not you might have a bad fan clutch, also change thermostat if it's old, not that expensive.
Engine cooling is not an issue - has never been above half at any time under any load or temperature. It's EGTs that are the issue.

Quote:
Originally Posted by BCF250 View Post
Do you have any way of checking for codes? I had my ficm repaired by fircmrepaire.com Fast turn around and they can even tune it for you if you want.
I never have any codes when I read with my Xcal3. If I need a FICM I will be having Ed supply one with the full goody package and an Atlas 40 tune. I should have my Scangauge here by the end of the week, so I will get some readings and see what's up for sure.
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Old 08-07-2012, 02:53 PM
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Quote:
Originally Posted by mantis118 View Post
Ficm will cause high egts.


How does that happen?
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Old 08-24-2012, 09:31 AM
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Originally Posted by bismic View Post
How does that happen?
Because of improper opening/closing of the spool valves. If they aren't being operated properly you won't get proper atomization of the fuel so it dribbles in rather than sprays in. This is what causes the high EGTs.

Great read here if nobody has seen this:

http://www.fordtechservice.dealercon...FICM_Guide.pdf
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