Hi guys. just looking for advice. my truck lately has been getting a wrench light after driving about 40 miles in very hot weather. I have a livewire 9625 xtreme. I haven't tuned truck yet but thought id scan gauges while I went to work in morning and after work. in the morning it was only 10 degrees Celsius and temp deltas were around 8 degrees and no light. two mornings in a row. today with the tuner watching on the way home, I got a wrench light. I was really watching the temps. it was around 27 degrees Celsius, 40 mile drive home. deltas were sitting right around 15 degrees and suddenly out of the blue 90% of the way home, the coolant temp dropped 2 degrees f. and right then the wrench light came on. It was a 17 degree difference. should I be alarmed????