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Transmission cooler lines


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04 Sierra HD 2500 ,does the flow from tranmission go thru radiator then thru trans cooler or cooler then radiator and back to trans?

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I believe its radiator, trans cooler, then back to trans.

 

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This is correct. Fluid leaves trans and goes into the bottom of the radiator. Comes out of the top of the radiator into the trans cooler then back to trans

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The tranny line from the transmission to the radiator let loose on me today. No one around here seems to have the replacement lines and they need to be ordered. So my question is can I cut out the rotted section thats leaking and do a temp fix with some rubber hose? If so what size hose? Any suggections?

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I went with -6 steel braided teflon lines with AN fittings for all 3. Fittings may need to be changed or use adapters

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