Max Trans temperature?

[BKennedy]

I will just leave the stock one in there, after checking it to make sure it still works, then put the new one in behind it. If that doesn't cool it down, then I will explore other options, like putting in a fan. I still run the tranny lines through the radiator because sometimes I go where it gets cold.
Sorry to jack your thread, Trapper...

 

[Albino 94LTD]

Albino - If you saw temps of 240, I would consider changing my tranny fluid to be safe. Better safe than sorry when it comes to your tranny.

The Amsoil fuild has 7000miles on it and I check it frequently. It's still red and has no burnt smell, so I guess I'll keep on keeping on until I notice a change.

 

[BrooklynBay]

Dead Link Removed

 

[Fredness]

So the 208* I see on my XCal2 Data-Logs on the free-way are probably nothing to worry about?

Any clues as to where this temperature is "read" or is it an infered temperature reading?

Looks like I may have to do the additional cooler anyway...

 

[dkkne]

a good normal operating temp should be in the 180 degree range. With engine oil it must heat up and stay at a normal temp. With trans fluid the cooler it is the better on the trans..

 

[Allbert]

What is not mentioned (and what I want to know) is the amount of time at a certain temp.

If the tranny is running for 2 hours at 240f or more, yeah I'm sure that's bad, but how about 240f for 10 minutes several times a month?? I popped up to 240f today going up a 2 mile 10%grade hill, ambient temp 90f, with the fan on.

Glacier, input please.

Can't answer for all transmissions, but, for test purposes, I've personally forced a transmission up to >260F (by revving engine to 1500RPM in gear with brake applied) for about 20 minutes to evaluate shift quality at that temp. Dropping the pan later revealed that the fluid had darkened a bit, but the transmission didn't go into "hot" mode, didn't slip, shifted just fine, etc. The 260F reading was from the TOT sensor. Having said this, I don't recommend doing this sort of thing, and if I knew my transmission fluid was even up to 250F hot from real driving, I'd probably pull over and let it cool down. Even if it doesn't do any quick damage, driving this hot just doesn't seem like a good thing to do.

 

[tootalltechie]

Best place for sending unit on a stock A4LD?

Hi
I do not have a Explorer, my ranger is manual, but my Aerostar AWD has a
A4LD. Where would be the best place to put the sending unit? What exactly would I need to plumb it.

 

[BrooklynBay]

One place to put it without having to fabricate anything fancy would be to remove the pressure port plug on the driver's side of the transmission, and screw it in there. Some people say that the pan is the best spot since it has the most amount of fluid in one area which is constantly circulating. Some people add a remote filter, but claim that it's not accurate enough. Keep in mind that it has to be on the line before it goes to the cooler.

 

[Maniak]

One place to put it without having to fabricate anything fancy would be to remove the pressure port plug on the driver's side of the transmission, and screw it in there. Some people say that the pan is the best spot since it has the most amount of fluid in one area which is constantly circulating. Some people add a remote filter, but claim that it's not accurate enough. Keep in mind that it has to be on the line before it goes to the cooler.

Just remember that where you put it determines what your readings are. The port mentioned above is about as warm as the fluid will get since you are reading it right about where the converter is done with it. (other than the cooler line coming out of the trans)..

If you read it from the Pan you will read the temp of the fluid that most of the transmission is seeing.

Just remember that you want to see your trucks "normal" temp and then keep an eye on it to see when something isn't right.

~Mark

 

[tootalltechie]

Installing temp gauge in a A4LD equiped 1992 Aerostar

One place to put it without having to fabricate anything fancy would be to remove the pressure port plug on the driver's side of the transmission, and screw it in there. Some people say that the pan is the best spot since it has the most amount of fluid in one area which is constantly circulating. Some people add a remote filter, but claim that it's not accurate enough. Keep in mind that it has to be on the line before it goes to the cooler.

Thanks for the info. Is there a picture or diagram to help me with the instalation?

 

[BrooklynBay]

Check this thread: http://www.explorerforum.com/forums/showthread.php?t=141191 This second link has some pictures of the pressure port: http://www.explorerforum.com/forums/showpost.php?p=1153425&postcount=16

 

[inh]

Reviving this thread because I'm curious about my trans temps. I have a '00 4.0 OHV 4x4, and I added a B&M trans cooler and a remote filter to my trans. Fluid runs from the trans, through the filter, through the radiator, then through the B&M before goin back to the trans. Trans temps, as measured from the pan, are 175-200 when driving, and after some long uphills, or while wheeling, will get up in the 220-230 range.

I think this is because the thermostat in the transmission doesn't even open until 175, so when there's really strain on the trans, its adding too much heat before the coolers can shed it. I'm going to install the Superior shift kit thermostat bypass the next time I have the valvebody out..

 

[BrooklynBay]

Could you make a how to thread on installing the bypass, and include part numbers?

 

[inh]

It's part of the superior shift kit for the 4r/5r. All it is is one little piece, like a spacer, that installs behind the thermostat in one of the valve body bores. I have one left over from my botched superior kit install on a used and apparently failing valve body from 800700trans.

When I get home I'll look in the documentation and see if there is a part number that maybe you could use to con your way in to one of the pieces

 

[inh]

Could you make a how to thread on installing the bypass, and include part numbers?

Here ya go: http://www.explorerforum.com/forums/showthread.php?t=249659

No part numbers in the documentation, sorry.