Help!
This past weekend I replaced my OEM LPOP with a Melling and also replaced the OEM harmonic balancer. I removed the radiator for this work (know that was not necessary though) and all went quite well getting everything back together.
FYI, I have an Edge Engine Monitor (no tunes) and I monitor EOT, TFT plus about six other items. I run Schaffer's synthetic tranny fluid. Tranny has been rebuilt with a system using a triple clutch torque converter, increased oil pump capacity along with some other goodies. Tranny is ready for another flush, has approx. 100k+ miles on it with no towing at all, just straight line driving and a lot of that.
Everything was fine for a day or so running various errands and while returning a couple of rented tools on Friday my tranny temps jumped up to 230 +deg. F. I stopped and let things cool off and headed back home. While letting things cool off I crawled under the truck and checked the temps on the tranny pan (very hot), the tranny lines in the bottom of the radiator (not hot at all) - all by touch.
Well, about half way back I noticed the temps started dropping and finally settled at normal - 140 deg. F. +/-.
I was out in it this morning and everything seems to be normal.

Initially, I thought the problem could be due to a blockage or a faulty TFT sensor. Now that the temps appear to be normal the sensor may be fine and if there was a blockage that has been cleared.

I will probably drop the pan, replace the filter and do the flush to see if there is some evidence of what caused those high temps.

Any suggestions at this point?

Thanks guys.

 

Dropping pan and checking magnet would ba a start. I would check that the bypass is not in the open position. To do this take off rear most transmission line divert it in a bucket, start truck and verify no pressurized fluid is coming out of port you took line off of. If it has fluid coming out bypass is stuck on and would keep your fluid from going thru radiator and transmission cooler. Just a thought.

 

10-4, Scott. I was curious if there was a bypass in the tryanny system. I think that rear most line is the same line one removes when doing a tranny flush. Raining today so I will likely do this next weekend unless it starts again with the high temps. Until then I plan to drive it back and forth to work.
Will keep youins posted.

Thanks again,