Have a new '13 ecoburst and was wondering if they need to have the same cool down idle time before shut down for the turbos as my powerstroke? The powersmokes tend to coke up over time if shut off above 350-400 degrees pre turbo EGT.

Are there any similar rituals wit heh EC or just drive and enjoy?

 

Nope, drive and enjoy..

 

Different kind of turbo. EB turbos are water and oil cooled, as opposed to older diesel turbos that were oil cooled only. This water cooled design allows for a proper cool down cycle regardless of driver intervention.

Drive it hard and enjoy it!

 

As Sammy and Vert mentioned it's really not necessary most of the time. When I'm towing something heavy I typically give it a minute or so if coming right off the highway into a rest area. But that's about it.

 

Yesterday we drove hard through the mountains to visit my daughter in college, 200 miles each way. Her little college town kinda sits in a a basin after making the last big climb. After that trip to the college, I do let it sit and idle for 2-3 minutes because she's been running pretty hard climbing. Otherwise, I drive it normally.

 

thanks!
looking forward to being able to hammer it, only 400 miles so far.

 

Babying an engine is the wort thing for it IMO...hammer it a few times just don't over do it!

 

I guess that I am sort of old school on this issue, I was always told to cool it off for a minute before I shut it off, I grew up in a trucking fleet, that was then, I realize that these turbo's are a different animal. they are water cooled and if you are running full synthetic oil, its not supposed to be able to coke up in the bearings of the turbo, that being said, for the most part I will idle for 30-60 seconds before shut down, if nothing else, I get some peace of mind.

 

Keep in mind being a gas burner, the EGTs are always going to be high for the cats. Part of the reason for the water-cooling on the turbos.

Unlike a diesel, idling will do you no good unless you've REALLY been hamming the truck.

 

This topic reminds me of the old myth that you have to warm up a car engine before you put it in gear and go anywhere. It may have been true long ago, but there is absolutely no reason in this day and age under most circumstances.

I was a professional truck driver from '07-'10. When I was being trained my instructor insisted to me that cool downs are only needed if you're coming off the highway and are stopping right away. He always told me that even the act of coming to a stop, turning, pulling into a truck stop, idling around the lot, and backing in was plenty of time to cool the turbo down. This was a driver with over a million miles who never coked up a turbo. A few months later I broached the subject to one of the diesel techs at the home terminal. He told me the same thing, and pointed to his tuned Duramax-equipped truck and told me his EGTs were below 400° within a minute of coming off the freeway.

Two years later I had what many would consider to be a nightmare situation for my turbos. Climbing Sherman going eastbound out of Laramie, WY at 79,500 lbs gross my truck caught on fire. Climbing hills in a heavy truck is pretty tough on an engine; wide-open throttle, engine screaming, barely able to hold 30 MPH for a ten-minute climb at full load. Engine temps got warm, I think she was around 220° around the time it happened. Some insulation from my hood fell onto my glowing hot turbos and started a fire, I didn't notice anything was wrong until an air line let go. By that time smoke was belching from under the truck as I rolled to a stop. Does anyone here think I gave the truck a few minutes to cool down?

Hell no I didn't...I shut it down, pulled the hood open, nearly passed out from the fumes, and put out the fire on the turbos. Had to spray the darn thing 10 times before it stopped reigniting. Was towed to MHC Kenworth in Cheyenne for them to repair the damage:



Took them three days, and every time I called I asked about the turbos sure that I cooked at least one of them. Some HVAC work, plastic parts, and some other sundry things and she was back on the road. Both turbos were just fine. The truck had 500,000 miles, and I turned it in around 554,000 miles on those same turbos.

Ditch the myth, modern turbo and lubrication system design in both gas and diesel engines has largely negated the need. Rant OFF.

 

Same thing if something goes on heavy equiptment, i.e. when a hydraulic line blows. It gets shut down immediately to keep the mess to a minimum. Cat equiptment is pretty tough, though the turbos do go sometimes. That's why they make replacement parts. Sometimes this happens also. In this case a hyd line blew and sprayed on the hot turbo. Total loss

 

Wow, that's quite a fire. If my fire extinguisher wasn't charged my KW would have looked like that. It also had a yellow engine.

 

I read a article that Ford posted when they were torture testing the 3.5 ecoboost where they ran the engine at max rpm/load for several minutes then shut it down. This was done hundreds of times with no effect on the turbos.

http://www.autospeed.com/cms/article...bo-V6&A=111422

 

for the disels the coking is an "over time" thing like hardening of the arteries. One hot shut down will not cause a failure, but 10,000 of them may. Good to hear all the good stuff about the EC.

For break in I am driving it as normal but without mashing it too hard and only tried 3/4 throttle mash twice to see what she had.

 

Some of this torture testing was also done to prove out the 3.5EB in the Police Interceptor (sedan, at the time). There were similar concerns in that world about turbos being incompatible with the way cops drive. If memory serves, one of the tests was doing a pursuit course wide-open, then immediately shutting the car down... no damage occurred.