Cool Down Time

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May 26, 2019 | 11:05 AM

#16

f350ktm

More Turbo

Joined: Nov 2005

Posts: 698

Likes: 4

From: Rural Northern California

Quote:

Originally Posted by rewillia

Per the Ford Owner's Manual; under the section on Starting/Stopping the Engine;

SWITCHING OFF THE ENGINE - 6.7L DIESEL
Switch the ignition off.
To help prolong engine life, we recommended you allow the engine to idle for three to five minutes, especially after any of the following:

Continuous engine speed.
High ambient temperature.
High GVW or GCW operation, for example heavy loads or trailers.

This allows the turbo charged engine to cool down.

http://www.fordservicecontent.com/Fo...userMarket=USA

I follow this recommendation but the times it is indicated are few.

For those especially concerned about cool down I would recommend using turbine temperature for what dictates shut down rather than time.

On my '02 7.3 I installed the ISSPro Turbo Temp Monitor ISSPRO TURBO TEMP MONITOR

This device senses when the pre or post turbo temp drops to a given level (usually 300 degrees) then shuts the engine down. The truck can be locked and with ignition off and doors locked with keys out during the cool down period.

I believe it would take some adaptation to use it on a new 6.7.

Personally I don't feel this device is needed for the 6.7 which has turbine cooloing that the 7.3 did not have.