E40D Tranny Question
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Joined: Mar 2004
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From: ORANGE TX
E40D Tranny Question
Hey diesel Gods, I got one quick question regarding my 93 F250 xtended cab. It has the 7.3 idi with i believe E40D Automatic.My question is this, on the side of the transmission pan drivers side there is one of those temperature sensor sticker/decals to i presume indicate if the tranny was overheated from abuse etc. did ford put put these on from the factory or would it have been installed by an aftermarket rebuilder or under a service replacement/warrantied at the dealer? I know none of the maintenance history on this truck and was wondering if this would indicate the tranny had been replaced at one point? The truck has 189,000 and i guess it would probably be a good thing if it has been rebuilt/replaced. I built a 302 H.O. for a guy and the long block had one of these on the oil pan. Kinda of like one of those pop out indicators on thanksgiving turkeys indicating it's done.Any views on this would be appreciated.
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From: Kent WA
Originally Posted by BIGBUBBA63
Due to the overwhelming responses i received i guess i'll have to stick with injector or exhaust questions!!! appreciate it
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From: ORANGE TX
Cheaper jeeper, point taken,I respect and DO appreciate everyones knowledge/devotion and effort who provide all the answers that otherwise would go answered. I just had a bad night and should'nt have even logged on.
Plc7.3 ,thanks for the info, the tranny tag is gone and trans appears to be silver or gray in color I am fixin to change the radius arm bushings and happened to notice the warranty temp decal. upon closer inspection it looks like the rear tailshaft seal is new and hardly any road grime/oil/diesel on the trans.
thanks again
Plc7.3 ,thanks for the info, the tranny tag is gone and trans appears to be silver or gray in color I am fixin to change the radius arm bushings and happened to notice the warranty temp decal. upon closer inspection it looks like the rear tailshaft seal is new and hardly any road grime/oil/diesel on the trans.
thanks again
Fleet Mechanic
Joined: Sep 2005
Posts: 1,509
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From: Ladner, British Columbia
Definetely an aftermarket thing to void warranty as soon as you even get remotely close to overheating.
Unfortunately it is not hard to overheat an E4OD. I have heard of guys backing up their trailer and overheating their trannies.
If you forget to take it out of OD and lug it up a hill you can overheat it.
Usually you will find the rebuilder put those things on when they have been burned a lot in the past. Some guys don't even realize they just overheated their tranny.
Those tell-tale markers are quite sensitive and it usually does not take much to melt them away. Your temperature alarms on the tranny come in much later so if you get a blinking OD light due to temperature you can pretty much bet that the tell-tale marker has melted already and your warranty is up.
Seb.....
Unfortunately it is not hard to overheat an E4OD. I have heard of guys backing up their trailer and overheating their trannies.
If you forget to take it out of OD and lug it up a hill you can overheat it.
Usually you will find the rebuilder put those things on when they have been burned a lot in the past. Some guys don't even realize they just overheated their tranny.
Those tell-tale markers are quite sensitive and it usually does not take much to melt them away. Your temperature alarms on the tranny come in much later so if you get a blinking OD light due to temperature you can pretty much bet that the tell-tale marker has melted already and your warranty is up.
Seb.....
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From: Kent WA
Originally Posted by BIGBUBBA63
Cheaper jeeper, point taken,I respect and DO appreciate everyones knowledge/devotion and effort who provide all the answers that otherwise would go answered. I just had a bad night and should'nt have even logged on....
I wasn't going to try to answer your question since I didn't KNOW the answer 100% for sure, but I pretty much figured it was a rebuilder tag. We use something similar where I work on our electric motors and gear reducers. Ours are a 2" strip with five or six 1/4" square white "windows" with 1/8" gaps between them. Each "window" represents a 10 degree increase in temp. Typically the first one turns dark at around 140 degrees and the last one darkens at around 200 degrees. Once a square darkens it stays dark. Good way to keep track of the max temp history on a piece of equipment.
Good way for a rebuilder to say "you got it too hot - no warranty, sorry" too....
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Joined: Mar 2004
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From: ORANGE TX
Thanks guys i appreciate the replies ,i got some more questions (of course) and some funny stuff to relate but got some stuff i got to handle and will post later tonight or in the a.m.
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Joined: Jul 2006
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From: Near the ocean
E40D tranny question
Originally Posted by knapikmichael
im glad i looked at this thread i now reelized how i messed up my tranny i towed in od up the hills on 58 near emporia va
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From: Powell River B.C.
Cheapest investment you can make for you truck is an additional tranny cooler, especially with an E04D. So if the production tag that is suppose to be located just aft of the selector input unit is missing, would it be reasonable to assume your transmission has been rebuilt?? A lot of us out here that didn't own our truck since new would love to know!!!
Fleet Mechanic
Joined: Sep 2005
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From: Ladner, British Columbia
Originally Posted by knapikmichael
where would u hook up a temp guage and what should the temp be around when running
The Temperature will fluctuate based on the type of driving but you should keep it below 170 deg. F. Any hotter could start to do damage to the tranny.
Just imagine how much heat that large torque converter generates when it is slipping with say 1000 engine rpm and no output to the tranny. That is a lot of hp going to heat and you won't do that for very long before the tranny starts to boil unless you got a good tranny cooler.
Seb.....
Tuned
Joined: Dec 2006
Posts: 291
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From: houston,tx
definatly get a temp guage, i think a manual one is more acurate (no variations because of voltage fluctuation). also i would opt to put it in the pan thats where the fluid is that would have had the most recent contact with the transmission internals. the fluid coming from the oil feed line to the cooler would reflect how much heat the torque convertor is generating. hey, maybe both would be a "cool" idea; bet no ones done that! also try some red Lubeguard
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