Do You Need To Let Truck "Cool Down"... - Ford Powerstroke Diesel Forum
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post #1 of 26 Old 04-08-2010, 12:09 PM Thread Starter
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Do You Need To Let Truck "Cool Down"...

after driving for about 20 minutes? My normal driving time is about 20 minutes on roads with speeds between 40-50. Do I need to let the motor (turbo) cool down for this short of a driving time? If so, how long should I let the truck idle before shutting it off?

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post #2 of 26 Old 04-08-2010, 12:10 PM
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Not unless you've been dogging it or towing heavy. I usually just make sure to take it easy the last couple of miles and let my egts come down before I shut it off.

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post #3 of 26 Old 04-08-2010, 12:41 PM
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On my 7.3 it only takes like 30-45 seconds for the turbo to cool down

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post #4 of 26 Old 04-08-2010, 12:48 PM
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i tend to let me truck idle when i run into the store for something. ill lock the doors with the key pad before walking away. i dont usually shut it off till i get to were im going. i dont even shut it down for fuel unless the tell me to. normal driving ill sit in part for a min or two before i should it down. if im pulling something ill wait 5.

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post #5 of 26 Old 04-08-2010, 12:51 PM
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on my 7.3 i wait till the egts drop even if not towing the only time i dont is if i gotta go to a fire

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post #6 of 26 Old 04-08-2010, 08:47 PM
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If I have mine idling at all when I go in to a store, I kick on my high idle. If im driving down the hwy or something, I'll let it idle for around 30-40 seconds before I shut it off.

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post #7 of 26 Old 04-08-2010, 08:59 PM
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I wait until my egts are below 400*

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post #8 of 26 Old 04-08-2010, 09:16 PM
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Has anyone just put a turbo timer on their trucks?
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post #9 of 26 Old 04-08-2010, 10:07 PM
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Originally Posted by Whatcop? View Post
Has anyone just put a turbo timer on their trucks?
a good remote start will do the same thing...just hit the start button and turn the truck off and take the key out. itll stay running for 5 mins or if the brake it hit

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post #10 of 26 Old 04-08-2010, 10:14 PM
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Towing heavy, unless it is winter, it takes several minutes to get the EGTs down to under 380 F.....

I assert that 10 cents of diesel could double the life of your turbo and valves, take the minute, walk around the truck, put your sunnies away, look at things...

I wait a minute in normal driving, two or so if coming off the highway, and about 3-4 minutes towing. I have the SPARTAN 210 Tow Performance package and I can read the EGT on digital instead of just the gauge. It does take that long. Ideal shutoff EGT is under about the 380 from my R&D.

It could also save the engine as the DIE if you snap off a valve head or a turbo goes to pieces... I think these little things are why one person has an engine with 300,000 on it, and another one had the same engine die at 125,000.... Oil changes, Turbo cool downs, good fuel filtering, de-watering of diesel, these are the things that bring long life...

Sort of us doing clean meat, veggies, grain, instead of all Pizza an Coke...

I am leaning on 60, still competing Quarter Horses in Reining NRHA, and I have had no real trouble with my last 4 Fords, 7.3, two 6.0 King Ranches, and now the F-450 KR DRW CC.... Take the advice, it works. I work the HE** out of these truck in heavy towing and they do not fail me with the best of care.
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