what is the purpose of this? - Ford Powerstroke Diesel Forum
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post #1 of 17 Old 07-23-2008, 08:24 AM Thread Starter
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Cool what is the purpose of this?

Hi,
I brought my truck into the dealership to fix an oil leak between my bellhousing and engine. They said they couldn't identify where the leak was coming from so they added a dye to the oil, told me to drive it for a week then bring it back - but my question is, they also said they recalibrated my PCM to the latest (whatever).. ever since that day my EGR temps have been about 100 hotter. I notice when I'm idling about to shut off the truck it usually warms down to 400 quick, but now it's at 500 and takes forever to cool off. Any idea why it would run hotter, and what's the purpose of recalibrating my PCM?

TIA

Audrey
2004 F350 XLT SCSB
4" lift, Bilstein shocks, BF Goodrich
all terrains, chrome Westin bull bar,
KC offroad hi-lites, straight piped,
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air, Accufab elbow, Dual a-pillar
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post #2 of 17 Old 07-23-2008, 10:21 AM
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The PCM (Powertrain Control Module) is basically a computer, that monitors all of the sensors in the truck and make adjustments accordingly.

Im not sure why it would be that hot, I had mine re-flashed a few months ago and I didnt notice much of a difference in EGT's but I could have a different flash that you do
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post #3 of 17 Old 07-23-2008, 11:08 AM
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EGR or EGT temps?

Caylon Golden24
[B]01' F-350[B] ccsb dually 4x4 BTS
S475,300/200,SRP 1.1,h11's, DI headers and a few other parts

01' F-350cclb single wheel swap 4x4 "tow hoe" 250/200's, modded h2e, SRP 1.1, headers

00' f-250scsd 695.8hp
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post #4 of 17 Old 07-23-2008, 11:21 AM
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I'm pretty sure that Ford pays the dealership to do those updates. So even if you didn't need it...you got it, and the dealership got paid a few bucks. Why it would run hotter I have no idea.

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post #5 of 17 Old 07-23-2008, 11:22 AM Thread Starter
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I'm sorry EGT temps. Yeah I dunno... they charged me $100 surcharge though.. all they did was put the dye in. ugh!

Audrey
2004 F350 XLT SCSB
4" lift, Bilstein shocks, BF Goodrich
all terrains, chrome Westin bull bar,
KC offroad hi-lites, straight piped,
SCT X3 tuner remote start, Ram
air, Accufab elbow, Dual a-pillar
Autometer gauges.

-Wish List-
ARP studs, Aurora 620 turbo
Dynomite Diesel Injectors
EGR delete
...
Grande Culo
2005 F350 King Ranch Crew Cab Dually
SCT-Innovative, MBRP Exhaust....

Future mods - Kelderman air ride, ARP studs
Injectors, EGR delete
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post #6 of 17 Old 07-23-2008, 11:24 AM
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Make sure you dont pay the 100 bucks again the next time your in for the same problem.

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post #7 of 17 Old 07-24-2008, 08:32 AM
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At the bell housing-block it could be the rear main seal leaking but it could be leaking up above and just showing up there.
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post #8 of 17 Old 07-24-2008, 08:54 AM
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I had my 07 reflashed a few wks ago at my dealer. I took it there purposely to get the flash update. It was under warranty, not $1 it cost me. They also replaced my Fog light assembly for free too b/c it wouldn't adjust. Try a different dealer maybe??? $100 sounds like a used car warranty deductable, not a new car warranty.

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post #9 of 17 Old 07-24-2008, 08:58 AM
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mines been leaking like that for a long time. i see no real fix to that problem other than really digging in there. im cool with a drip every now and then. and yeah the reflash shouldnt really change your egt temps. I would look into that some more

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post #10 of 17 Old 07-24-2008, 09:07 AM
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Quote:
Originally Posted by JBakerFX4 View Post
I had my 07 reflashed a few wks ago at my dealer. I took it there purposely to get the flash update. It was under warranty, not $1 it cost me. They also replaced my Fog light assembly for free too b/c it wouldn't adjust. Try a different dealer maybe??? $100 sounds like a used car warranty deductable, not a new car warranty.
you are probably still in your factory 3yr/36,000 bumper to bumper. She was using the 5yr/100,000 Powerstroke warranty, which does have a $100 deductible.

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