2015 JKU-Rubicon with factory heavy-duty towing option:
Today I just observed a weird transmission fluid temperature indication on my dash's small information screen.
I was towing my boat to a nearby lake, only 2 miles but with hilly roads (roughly 700 ft elevation gain-loss) and I happened out of mere curiousity to program my screen for transmission fluid temperature. I watched the temperature essentially lock onto 170 degrees (it stays around that temperature, plus or minus a few) when fully warmed up, regardless of whether I'm towing or not.
But then I happened to shift into neutral for a roadway halt (flagman stopping traffic briefly) and the temperature indication JUMPED* to 208 degrees. Then when I put it in Drive, it JUMPED* down to 170 again.
*What puzzles me are these "JUMPS". These are are NOT merely rapidly rising or falling temperatures -- these are instantaneous changes of almost 40 degrees, as quick as snapping your finger. It's as if the temperature indicated was switching from one quantity of fluid to an altogether different one along with the shift between drive and neutral. I would have thought to see some transitional change in temperature, not a change as quick as a blink of an eye.
Does anyone know what is happening?
Thanks.
Today I just observed a weird transmission fluid temperature indication on my dash's small information screen.
I was towing my boat to a nearby lake, only 2 miles but with hilly roads (roughly 700 ft elevation gain-loss) and I happened out of mere curiousity to program my screen for transmission fluid temperature. I watched the temperature essentially lock onto 170 degrees (it stays around that temperature, plus or minus a few) when fully warmed up, regardless of whether I'm towing or not.
But then I happened to shift into neutral for a roadway halt (flagman stopping traffic briefly) and the temperature indication JUMPED* to 208 degrees. Then when I put it in Drive, it JUMPED* down to 170 again.
*What puzzles me are these "JUMPS". These are are NOT merely rapidly rising or falling temperatures -- these are instantaneous changes of almost 40 degrees, as quick as snapping your finger. It's as if the temperature indicated was switching from one quantity of fluid to an altogether different one along with the shift between drive and neutral. I would have thought to see some transitional change in temperature, not a change as quick as a blink of an eye.
Does anyone know what is happening?
Thanks.
