The large numbers are transmission temp. The small number above the water temp is what I am talking about. I bought it new. I am the only owner. I just picked it up from second dealership and they said the latest PCM update gives you the temp of the cylinder head now which is what is popping...
Gauge temperature started popping up 228* -230* after they did a cam phaser replacement around 30k miles.
It’s been happening for the past 15k miles.
It starts lugging on long grades, then when it down shifts it cools off.
My husband has ran it in tow/haul mode and it helped some but still...
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