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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford F-150 Raptor General Discussions [GEN 2]
Coolant Temperature Spike at Speed
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<blockquote data-quote="thatJeepguy" data-source="post: 1772686" data-attributes="member: 56558"><p>I am guessing (since the turbos are water jacketed) you are drivng at 70-80 as you stated which from my experience is about 1-4 psi boost considering some light incline. This is what causes the coolant temps to rise as I assume the block on the engine would heat as any standard 3.5 NA engine. But that constant boost is what is making the heat. As you let off the gas, the rpm driven fuel pump slows down and thats where the temp elevation is happening. Also stock intercooler will heat fatigue i assume. Now if thats wrong i would assume a pressure leak in the coolant system.</p></blockquote><p></p>
[QUOTE="thatJeepguy, post: 1772686, member: 56558"] I am guessing (since the turbos are water jacketed) you are drivng at 70-80 as you stated which from my experience is about 1-4 psi boost considering some light incline. This is what causes the coolant temps to rise as I assume the block on the engine would heat as any standard 3.5 NA engine. But that constant boost is what is making the heat. As you let off the gas, the rpm driven fuel pump slows down and thats where the temp elevation is happening. Also stock intercooler will heat fatigue i assume. Now if thats wrong i would assume a pressure leak in the coolant system. [/QUOTE]
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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford F-150 Raptor General Discussions [GEN 2]
Coolant Temperature Spike at Speed
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