Transmission cooler
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More Turbo
Joined: Oct 2005
Posts: 560
Likes: 7
From: MICHIGAN
Transmission cooler
Opinions needed. I have 2001 F150 screw 4x4 5.4 with only 85k on the clock. I pull a 6k 27’ Travel trailer 8-10 times in the summer. I have a Edge tuner so keep an eye on the trans temp pretty closely. I only pull with OD off and it typically runs about 180-185 on flat ground. The truck has the tow package, 3:55 gears and a factory cooler.
We have a trip planned for northern Michigan this summer and it gets pretty hilly up there.
I was thinking about adding a second cooler or a 7” electric fan to factory cooler with a simple toggle switch in the cab.
Thoughts?
We have a trip planned for northern Michigan this summer and it gets pretty hilly up there.
I was thinking about adding a second cooler or a 7” electric fan to factory cooler with a simple toggle switch in the cab.
Thoughts?
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,714
Likes: 2,639
From: SE Florida
A second cooler may add enough restriction that it will lower your cooling capacity. Don't do that. A small electric fan will help at low speeds, but usually lowers the airflow at highway speeds.
In my opinion, your temperatures are great. If it were mone I wouldn't change anything. I've towed extensively throughout Michigan. I don't believe there are any hills that will cause you a problem. You can go as high as 220°F all day long with no problems. You can go up to 250°F for up to a half hour at a time without causing any problems. You should have no problems.
In my opinion, your temperatures are great. If it were mone I wouldn't change anything. I've towed extensively throughout Michigan. I don't believe there are any hills that will cause you a problem. You can go as high as 220°F all day long with no problems. You can go up to 250°F for up to a half hour at a time without causing any problems. You should have no problems.
New User
Joined: Jul 2017
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Hey I was reading your response to this thread and I see you specialize in transmissions on Fords and thought I would ask you about your comment. I installed a B and M trans cooler last summer on my truck and I cut the top line that feeds the stock trans cooler, so it goes into the B and M cooler first then to the stock trans cooler and back to the transmission. I realized I cut the wrong line after I installed it and got worried. I called a few shops and they said as long as their is a complete loop it should be fine. What should I do in your opinion, should I just use the stock cooler and delete the one I installed or just use the B and M cooler and not use the stock cooler along with it. It seems like its been doing ok but I don't have any way to tell. I installed it because I tow a travel trailer occasionally and I wanted to keep my transmission cool.
Thread Starter
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More Turbo
Joined: Oct 2005
Posts: 560
Likes: 7
From: MICHIGAN
A second cooler may add enough restriction that it will lower your cooling capacity. Don't do that. A small electric fan will help at low speeds, but usually lowers the airflow at highway speeds.
In my opinion, your temperatures are great. If it were mone I wouldn't change anything. I've towed extensively throughout Michigan. I don't believe there are any hills that will cause you a problem. You can go as high as 220°F all day long with no problems. You can go up to 250°F for up to a half hour at a time without causing any problems. You should have no problems.
In my opinion, your temperatures are great. If it were mone I wouldn't change anything. I've towed extensively throughout Michigan. I don't believe there are any hills that will cause you a problem. You can go as high as 220°F all day long with no problems. You can go up to 250°F for up to a half hour at a time without causing any problems. You should have no problems.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,714
Likes: 2,639
From: SE Florida
Hey I was reading your response to this thread and I see you specialize in transmissions on Fords and thought I would ask you about your comment. I installed a B and M trans cooler last summer on my truck and I cut the top line that feeds the stock trans cooler, so it goes into the B and M cooler first then to the stock trans cooler and back to the transmission. I realized I cut the wrong line after I installed it and got worried. I called a few shops and they said as long as their is a complete loop it should be fine. What should I do in your opinion, should I just use the stock cooler and delete the one I installed or just use the B and M cooler and not use the stock cooler along with it. It seems like its been doing ok but I don't have any way to tell. I installed it because I tow a travel trailer occasionally and I wanted to keep my transmission cool.
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