The clutch is thermal. It doesn't care how fast it's going per se. All it cares is if the bimetallic strip on the front is expanding to engage the clutch. Air flow on the highway should cool it and let it disengage but if it's staying hot, the clutch should stay in.
X2 on a real gauge as without it you are guessing and if the harness has a short to ground somewhere, it will peg the gauge I believe. It will also keep you from getting it that hot because you can watch it closer until you sort this.
There is also a fan clutch mod out there that will lock up the fan sooner.
X2 on a real gauge as without it you are guessing and if the harness has a short to ground somewhere, it will peg the gauge I believe. It will also keep you from getting it that hot because you can watch it closer until you sort this.
There is also a fan clutch mod out there that will lock up the fan sooner.