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Nissan / Infiniti Tech Resources All Nissan & Infiniti Tech info

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Old 09-26-2011, 04:12 AM   #1
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05-08 Xterra major issue, and simple fix...before its too late

In the event none of you knew, Xterras (and probably frontier and pathfinders) have an issue with the automatic transmission cooler somehow getting coolant from the radiator into the lines and destroying the transmission.

Here is my fix, 2 parts, pre, and post fix.
pre fix

post fix
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Old 09-28-2011, 11:43 AM   #2
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its actually the same for almost all automatic transmissions in the nissan family, but now you dont have any was of cooling the transmission oil, i bought a small oil cooler from and mounted it on the front below my AC Rad, then its seperate from the coolant insted.
2002 Nissan Sentra SpecV - 2.5L 6 Speed FTW
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Old 05-21-2012, 04:35 PM   #3
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Its pretty simple. Just by-pass the internal tranny cooler. They come factory with an internal and external cooler. Just use the external only.

Going off memory, it goes from trans > external cooler > internal cooler > trans. Cant remember if it goes thru external or internal cooler first.
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