factory tranny cooler-cutting lines - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 03-23-2008
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factory tranny cooler-cutting lines

with my new bumper my tranny cooler lines are in the way, i just need to cut back the hard lines about 2-3" and run a longer rubber hose.
will there be any problems once the fluid cycles back and there will probally be an air bubble or to going through the system while i change the lines.

also, what type of fluid should i use? i may as well change the transmission filter and the 3qts that come out of the pan since im comming up to 30k miles
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Old 03-23-2008
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As long as you don't contaminate the existing fluid with metal shavings, dirt, etc. then you should be fine cutting the lines and extending the rubber hoses.

As for ATF brand, if you can't find any Motorcraft Mercon V, then look for Castrol Mercon V (which has "Certified and Approved by Ford" printed right on the label).
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Old 03-23-2008
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Automatic transmission cooler hose is different from generic automotive hose. It is rated for a higher temperature and pressure. Do yourself a favor and use real trans cooler hose - it should say what it is in printing right on the side.
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Old 03-23-2008
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alright cool deal, hopefully i can get this done tomorrow
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Old 03-23-2008
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I want to do this as well, running without a bumper leaves those hoses right out in the open. Let us know what you end up doing.
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Old 03-24-2008
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i cut mine back far enough that they run over the frame rail now.

you can see them in the pics

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Old 03-24-2008
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Would it be harmful if I just rerouted mine like that? Or does it require cutting? Well nevermind it won't hurt anything just cutting them down a little bit would it.
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Old 03-24-2008
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nope just cutting them down does not hurt anything. ive been running it like that for 2 years now.
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Old 03-24-2008
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hey zach, how much fluid loss did you come across when you disconnected the lines?
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Old 03-24-2008
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I was just wondering the same thing, I bet if your quick and block the lines it will be very little.
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Old 03-24-2008
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Actually, it's not such a bad thing for some fluid to escape when you are cutting the metal lines. This will help "flush" the cutting area of metal shavings, dirt, etc.
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Old 03-24-2008
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not even a quart. most i lost was from cooler.
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Old 03-24-2008
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Ok another question, this one is pretty easy lol. What fluid is in the tranny cooler, transmission fluid right? lol
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Old 03-24-2008
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yep. sure is.

there is also tranny coolant in part of the radiator. see mine i completely by passed the radiator and added another aux cooler. so i have 2 aux coolers and not using the radiator cooler.
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Old 03-24-2008
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alrigth cool, thanks zach.
and i will try to get some pictures while im doin this for anyone curious.
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