Coolant temp what is too high? - Diesel Forum -
6.0L Power Stroke Engine and Drivetrain Discussion of the 6.0L Power Stroke diesel engine and drivetrain in the 2003-Up Super Duties and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.0L Power Stroke engine.

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post #1 of 4 (permalink) Old 03-19-2017, 12:15 AM Thread Starter
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Coolant temp what is too high?

Looking to set limits on my H&s Mini max tunner was wondering what a good top number would be for the coolant. In other words what temp does the danger zone start so i can set it below that.

2003 FORD 6.0 H&S Mini Max Tuner, Aurora 3000 turbo, 4 inch turbo back exhaust, Hot FICM, Fass 125gph system, Cold air intake, Over sized intercooler pipes, modified intake elbow, 3" lift 35 inch tires.
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post #2 of 4 (permalink) Old 03-19-2017, 03:35 PM
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The PCM will defuel from stock fuel levels at 253 degrees F. So set your Defuel on minimax below that

2001 Ford F250 4x4 CrewCab 7.3 Automatic, 4 inch MBRP exhaust, Diablosport Predator, Edge evolution (monitor only), Cold Air intake,
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post #3 of 4 (permalink) Old 03-19-2017, 08:08 PM
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The 253 *F number is the oil temp defuel point.

The coolant defuel point is 221 *F.

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post #4 of 4 (permalink) Old 03-20-2017, 06:34 AM
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My MiniMax defuel is set at 220, vs. the PCM's 221.
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  Diesel Forum - > 1999-2007 Ford Super Duties > 6.0L Power Stroke Engine and Drivetrain

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