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post #1 of 15 Old 07-07-2006, 07:39 PM Thread Starter
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Cool down Powerstroke

Recently I read an acticle on line by a well known diesel company that made a comment that newer diesel motors do not need to cool down before shutting down because the newer turbo's have a redesigned oiling system. Since I had to have my turbo replaced today, I asked the guys at the shop this question. Since these guys have been building turbo's for disesels for over 20 years I figure they know something about this topic. I was told flat out "let your powerstoke diesel idle for at least 1 minute or watch the temp drop on your gauges." The only turbo's that may not need to are the new electronic vane control on 2006 or newer specificly the durmax not the 7.3 or the 6.0. Didn't want anybody out there frying their turbo if they don't need too.
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post #2 of 15 Old 07-13-2006, 09:13 AM
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Glad that you asked. I know that for me, personally, I would cool my truck down no matter what they said. First of all...I too had to replace my Turbo and I know how RED it was. Also, I know just how much heat comes out from under the hood after I have been running that truck. Call me old fashioned, but "Better Safe Than Sorry" I always say!

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post #3 of 15 Old 07-13-2006, 11:00 AM
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I just had BTS put gauges on my 6.0 and have been turning it off at 400 when I go to park it. I was told not to run it over 1300 and only then for a short time. Am I cooling it down enough?

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post #4 of 15 Old 07-13-2006, 01:43 PM
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BD 's recommended temp pre turbo is 350 degress.anything hotter turns that bearing into a self back oven and cokes the bearing.If you are interest in a auto shut down syste m check out BD website under cool down timer,cheap insurance.

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post #5 of 15 Old 07-13-2006, 01:58 PM
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its says in the owners manual to let it cool down after driving for a while at high speeds. so i recomed it .2006 6.0
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post #6 of 15 Old 07-26-2006, 06:12 PM
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cooldown

So what's a safe temp to shut a 7.3 down at. After about one minute of idle when I get home from work the egt is between 300 and 400 degrees. Is this safe? I'm running a superchip by-the-way.
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post #7 of 15 Old 07-26-2006, 06:54 PM
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I would say under 400 is fine. if you are using synthetic oil the problem is much less of an issue. Basically you want to let cool oil and air go through the turbo and cool the metal down so the oil doesn't boil itself into a mass of solid particals that can score or demolish bearings.

I find that I by habit park, set the e brake and shift into nuetral and let it idle. By the time I unbuckle the seat belt and turn the radio down so it doesn't scare the crap out of me and crack the windows so I don't boil getting back in, the engine has more than cooled off and I shift into park and shut er down. Good habit to get into.
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post #8 of 15 Old 07-27-2006, 05:32 AM
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I have a turbo timer installed and it is set to continue running the engine for 45 seconds after I turn off the ignition. I turn the key off, exit the truck and 45 seconds later it dies.

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post #9 of 15 Old 07-30-2006, 02:34 PM
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Everybody has told me 400 is good. Of course, the cooler the better. I think 350 is the lowest they go though.

Jason
'99 F-250 EX, SB, 4x4, Auto, 707 conversion, Edge Evolution, Ultra-Light gauges, Skyjacker Leveling Kit, Optima Red Tops, 6" stacks. Still need more power :burnout
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post #10 of 15 Old 07-30-2006, 06:32 PM
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Most of the time I just take my truck out of gear (it's a manual) and let it coast into the driveway, parking spot or wherever i'm going and it's usually in right around 400 degrees. Even if it's a little more i'm not going to deliberately sit and wait a minute for 10 or 20 more degrees.

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