Tranny temps
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Senior User
Joined: Mar 2006
Posts: 435
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From: troy, Mo
Tranny temps
Hey any of ya'll know what temperature my transmission should be running at when I'm just cruzing down the highway at 70 mph. That's my normal speed. I have a 24,000lbs B&M tranny cooler. I have an Autometer gauge on it.
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Senior User
Joined: Mar 2006
Posts: 435
Likes: 1
From: troy, Mo
the gauge has been reading any where from 180 to 210 and it hasn't even gotten hot here yet. Plus I haven't towed a heavy load yet. The transmission was rebuilt by a reputable shop and they flushed out the lines. I was there when they did that. The cooler was installed with the rebuild. I bought the cooler myself so I know which one they installed.
Fleet Mechanic
Joined: Mar 2007
Posts: 1,808
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From: Meigs County Ohio
IDK but I thought you were spouse to install them in route cause installing them right at the tranny would read hotter cause of heat dispersal from the metal. IDK, just my thoughts.
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Senior User
Joined: Aug 2008
Posts: 414
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From: Lady Lake FL
Mine is installed on drivers side where a plug was located. Took p/u camper out last week and ran 65 to 70 on interstate temp ran about 160 (80 degrees outside, no hills).
Paul
Paul
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Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,738
Likes: 2,668
From: SE Florida
No. Installing the sender in the port on the driver's side of the trans is the best place. If you want to see the gauge move all over the place install it in the line to the cooler.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,738
Likes: 2,668
From: SE Florida
the gauge has been reading any where from 180 to 210 and it hasn't even gotten hot here yet. Plus I haven't towed a heavy load yet. The transmission was rebuilt by a reputable shop and they flushed out the lines. I was there when they did that. The cooler was installed with the rebuild. I bought the cooler myself so I know which one they installed.
Thread Starter
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Senior User
Joined: Mar 2006
Posts: 435
Likes: 1
From: troy, Mo
The radiator cooler is still attached, I insisted that it remain. Can't have too much cooling on the transmission was my thought. Engine different story. I had the shop pressure flush the lines with out when the tranny was out. I was there for that.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,738
Likes: 2,668
From: SE Florida
I suggest a flow test.
Get two buckets to catch ATF. Remove the line from the rear of the trans and aim it into the first bucket. Have someone start the engine and leave it in park at idle. Once the flow coming out of the line is steady move the line into the second bucket for exactly 15 seconds, the put it back in the first bucket and shut the engine off. If there is at least a quart in the second bucket there is enough flow.
Get two buckets to catch ATF. Remove the line from the rear of the trans and aim it into the first bucket. Have someone start the engine and leave it in park at idle. Once the flow coming out of the line is steady move the line into the second bucket for exactly 15 seconds, the put it back in the first bucket and shut the engine off. If there is at least a quart in the second bucket there is enough flow.