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Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go hereXJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.
Got my trans temp gauge in tonight. Took it for a drive around town & picked up some beer, drove it like I stole it up a few hills, I don't even think it got to 145 degrees. Installed on return line.
edit: this was around 12am on a fairly chilly night (in the 50s)
Last edited by PocketsEmpty; 08-16-2014 at 01:16 AM.
Now we will know both temps......that will be some great info (to see the difference). The difference will be the effectiveness of the stand alone cooler. Got some pics of the sending unit location/install?
Now we will know both temps......that will be some great info (to see the difference). The difference will be the effectiveness of the stand alone cooler. Got some pics of the sending unit location/install?
Yep, here it is on the return line. To move it I have to rewire it and I didn't get to it today
I had to run to the hardware store to get the T-fitting and couplings. Used teflon tape on the threads. Works great & no leaks. Drove around a good bit tonight, tranny cooled fluid temps stayed between 160-180. I think that's pretty good. I wish I had another temp sender and a switch, then I could toggle between both. Unfortunately that's not something local shops around here stock.
If I'm reading correct, the stand alone cooler is dropping tranny fluid temp 15*-35*, correct? Absolutely nothing wrong with 160*-180* fluid temps. In what kind of ambient temps?.....I forgot.
Now..............if you just had that cooler switched from "stand alone" to auxiliary inline with and ahead of the OE rad cooler and then auxiliary inline with and after the OE rad cooler, we (you and all the forum members) would have all kinds of valuable tranny fluid temp numbers/info. (hint, hint)
Now..............if you just had that cooler switched from "stand alone" to auxiliary inline with and ahead of the OE rad cooler and then auxiliary inline with and after the OE rad cooler, we (you and all the forum members) would have all kinds of valuable tranny fluid temp numbers/info. (hint, hint)
I'll likely do this when it starts to get colder out. I left the plumbing intact (well except for the upper radiator line, I'll need to get a new one) so it won't be too difficult to plumb back up.
But I'm also going to experiment with a thermal bypass valve, because I really do not want trans fluid flowing through the same radiator that coolant does. The same, Chinese-made, plastic-tanked disposable radiator that I rely so much on.
Also, ambient temps were upper 50's at night. I won't know the true efficiency of the cooler until I switch the sensor to the other line...which now I'm considering using an old coolant temp sensor I have laying around and just getting another T-fitting and a toggle switch so I can view that in real-time.
I just don't think cold tranny fluid is an issue at all......if it was, there would be a thermostat in the tranny, just like there is a stat in the motor and to the best of my knowledge, there's no stat in the tranny.
In our other 2 vehicles, that I monitor tranny fluid temp with a ScanGauge, in freezing cold weather tranny fluid temp may not break 100*....and if it does break 100*, it takes all day long to do it. Again, I have yet to see valid info saying cold tranny fluid can cause damage.
08-16-2014, 12:37 AM
The difference will be the effectiveness of the stand alone cooler. Got some pics of the sending unit location/install?
(hint, hint)
