Tranz temps?
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Junior User
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From: Ft. Lewis
Tranz temps?
Ok I have a bully-dog tuner and a autometer trans temp gauge and of course the factory temp gauge. I was driving a a mountain the other day and my autometer gauge read about 175, the bully-dog read 140-150, and the idiot gauge read normal. when i got to where i was going i noticed an oil trail and i looked under my truck and it was dripping trans fluid. So i check the fluid level and its fine. My question is where is the oil coming out of, and why?
Postmaster
Joined: Jul 2011
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From: Houston, TX
i dunno bout tat but the bully dog tuners usually ride the torqueshift trannys really hard. i can say tat i was a passenger on my friend's f-250, and he was towing as well. level ground, but then we heard a loud bang. poor tranny got killed. lets jus say there was blood n guts all around. as a former army officer, i submitted my recommendation for a medal to be given to my friend's truck for bravery and valor in the line of duty.
Postmaster
Joined: Jul 2011
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From: Houston, TX
maybe if u got some pics, it can help some of the experienced gurus on here to help u figure things out. also, any other mods to ur truck? please list as much details as u can. please also list any recent problems that u have fixed on ur car in case some bases were not already covered. thanks. we're all here for u , pal.
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From: Ft. Lewis
My mods are Bullydog tuner, trans, boost, and fuel pressure gauges, ccv catch mod, amsoil oil bypass filter, aux oil cooler, 4in lift, 35in tires, and im about to add another trans and oil cooler with an electric fan where the spare tire used to be. I run the no power setting usually driving around, i only put it in tow mode when im towing
Hotshot
Joined: Jul 2005
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From: Middle Tn.
More than likely blew the fluid out the dipstick tube or vent. Tranny could have been over filled. Ditch the Bullydog. Known torqueshift killer. 175 is not hot. That's close to where mine is when towing up a grade. Make sure the tranny is serviced with Mercon SP or LV fluids only and external filter is changed every 15,000 miles. Book says 30,000. I'm **** on maintenance.
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From: Ft. Lewis
I was not towing when the trans was at 175 and id just like to have the extra trans cooler for this summer when ill be towing from WA to NC, last time i saw temps from 200-250 on my trip from NC to WA with only a little U-Haul (2000ibs) and now itll be 7500ibs trailer for this next one
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From: Ft. Lewis
And guess ill ditch the bullydog tuner and use it a gauge for now, any suggestions on other great tuners then that work great with the 5R110w? And I do be-leave that the trans was possibly overfilled, its just so hard to read the damn dipstick.
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Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,695
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From: SE Florida
I was not towing when the trans was at 175 and id just like to have the extra trans cooler for this summer when ill be towing from WA to NC, last time i saw temps from 200-250 on my trip from NC to WA with only a little U-Haul (2000ibs) and now itll be 7500ibs trailer for this next one
The trans will warm to 165-175 pretty quickly. There is a thermostat in the trans that doesn't send fluid to the coolers until it's over 165F nominal, which on some transmissions can be as high as 175F.
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From: Ft. Lewis
I believe that an additional cooler is not going to help, The additional restriction is going to reduce the flow to the cooler, netting you AT BEST the same cooling you have now. In the worse case, if you have too much restriction, cooling will be less and you will have less lube flow to the rear of the trans. This trans needs a lot of lube at the back end or it's going to be damaged.
The trans will warm to 165-175 pretty quickly. There is a thermostat in the trans that doesn't send fluid to the coolers until it's over 165F nominal, which on some transmissions can be as high as 175F.
The trans will warm to 165-175 pretty quickly. There is a thermostat in the trans that doesn't send fluid to the coolers until it's over 165F nominal, which on some transmissions can be as high as 175F.
I didnt think about that. Could I tap into the trans pan and put an aux pump on it and make it a rocker switch fan+pump just incase my temps hit the 240s? I went already yesterday to the pick and pull and got 2 coolers and an electric fan so I figure i can do something with it. And the fact that I have nothing better to do for the next 2 weeks.
And so temp wise i have nothing to worry about 175 and below for normal driving right?
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,695
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From: SE Florida
You could add that cooler as you described. I wouldn't, there is little chance of getting this trans hot and you're adding many new places for leaks that could cause a lot more damage.
The thermostat is there to warm the trans up to 170-175 as quickly as possible. If it didn't have a thermostat it would run cooler. The thermostat's only reason for existing is to keep the trans warmer. You have nothing to worry about if the trans stays under 250.F. I've personally tested them as high as 310°F. The trans was torn down and checked and there was ZERO damage. You're worrying over nothing.
The thermostat is there to warm the trans up to 170-175 as quickly as possible. If it didn't have a thermostat it would run cooler. The thermostat's only reason for existing is to keep the trans warmer. You have nothing to worry about if the trans stays under 250.F. I've personally tested them as high as 310°F. The trans was torn down and checked and there was ZERO damage. You're worrying over nothing.
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From: Ft. Lewis
Ok well now i have peace of mind on the temps. I just have one more question, the oil was most likely coming from being overfilled is there an easier way to check the trans fluid level. The dip stick is always hard to read and i was just wondering if there were any tricks of the trade.
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From: Millersville, MD
Get a SCT X3 and get tunes from Innovative .
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,695
Likes: 2,616
From: SE Florida
Ok well now i have peace of mind on the temps. I just have one more question, the oil was most likely coming from being overfilled is there an easier way to check the trans fluid level. The dip stick is always hard to read and i was just wondering if there were any tricks of the trade.