Trans cooling ??
Postmaster
Joined: Mar 2008
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From: Sweet Home, OR
Being an auto idiot I have a question.
MY PS's E4OD has the temp sender in the driver's side of the trans right above the oil pan flange on the trans. in a factory "hole."
Is this a good spot?
MY PS's E4OD has the temp sender in the driver's side of the trans right above the oil pan flange on the trans. in a factory "hole."
Is this a good spot?
Elder User
Joined: Aug 2007
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no it isnt , that is the line pressure test port i have seen many installed there and it does not give a adequate indication of trans tempthe best way is in the outlet line from the trans to see what the actual trans fluid temp is before cooling
Posting Guru
Joined: Jan 2009
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From: Mattawa Washington.
so if I install my temp. gauge in the cooler line do you suggest the outlet or the inlet of the trans. mine is a c6 trans. behind a 460 4x4 f250 and I am pulling HEAVY loads 20,000 gross combined wt. It is only occasionally but I want to monitor the trans. going over the mtns. plan on installing gauge in transfer case and rear axle also. Your suggestion would be greatly appreciated. thankyou in advance. Doug
Postmaster
Joined: Mar 2008
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From: Sweet Home, OR
Thanks again trans tech!
Lead Driver
Joined: Nov 2003
Posts: 6,900
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From: Campbell River, B.C.
This shows it before the rad so its a little far forward, but its the best photo I could find on the web to show the idea:
This is on a ford explorer. Looks simple enough to do, even easier then putting a fitting in the pan.
This is on a ford explorer. Looks simple enough to do, even easier then putting a fitting in the pan.
Lead Driver
Joined: Nov 2003
Posts: 6,900
Likes: 3
From: Campbell River, B.C.
EDIT:
I went back and checked. Its a 1998 actually, 4.0 SOHC like you say......you are starting to scare me.
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Posting Guru
Joined: Jan 2009
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From: Mattawa Washington.
Ya ya I asked the question on a email post, came to the fte site and saw the answer ahead of my post. still it makes me feel stupid But its not the first time..ha ha Thanks thou ..
Postmaster
Joined: Mar 2008
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From: Sweet Home, OR
I just figured you missed it in the post.
Elder User
Joined: Dec 2006
Posts: 559
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From: On a farm.
first the 4r75-e on the f-150 it has a thermal bypass valve block in the cooler lines below the starter
it is a bad idea in my opinion because the thermostat fails
i disable it on any commercial unit i work on or any of my friends vehicles
when it goes south the trans temp just keeps rising and most times the trans is running way too hot but operating below the TFT sensors preprogramed threshold for a MIL light
it is a bad idea in my opinion because the thermostat fails
i disable it on any commercial unit i work on or any of my friends vehicles
when it goes south the trans temp just keeps rising and most times the trans is running way too hot but operating below the TFT sensors preprogramed threshold for a MIL light
Finally, where do you recommend putting the temp sensor.. on the 4R75E and the C6. As I mentioned earlier, I usually have them in three places, just for fun but if you were recommending just ONE location, where would it be. On the 4R75E, I have heard there is a port on the case that's good for a sender but I don't know what temp it reads. I don't know of any places on the C6 like that, so I guess the OUT line to the cooler???
Postmaster
Joined: Mar 2008
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From: Sweet Home, OR
You probably already saw that though.
Elder User
Joined: Aug 2007
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the thermal bypass valve on the 4r-75e is always open and bypassing until the fluid temp reaches approximately 170 degrees
there is a plug on the bottom retained by a snap ring
if you remove it and pull the plug out the thermostat is mounted on a pin on the plug
as the temp rises the themostat rises on the pin to block the bypass port
you can install a small diameter spring under the thermostat to hold it in the up position causing the bypass to be disabled and fluid will always flow through the coolers
there is a plug on the bottom retained by a snap ring
if you remove it and pull the plug out the thermostat is mounted on a pin on the plug
as the temp rises the themostat rises on the pin to block the bypass port
you can install a small diameter spring under the thermostat to hold it in the up position causing the bypass to be disabled and fluid will always flow through the coolers