Bomber495
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Joined: Sep 09 2019
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| Posted: Sep 09 2019 at 2:36pm | IP Logged
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So I just rebuilt a RE5R05A out of a 2008 Nissan Frontier 2WD. It was
destroyed by glycol contamination... this is my first RE5R05A rebuild
alone. I did a full rebuild with steels, clutches, seals, pump and tail
bushing, street smart reman valve body/tcm, and new torque converter.
Flushed the external cooler and blew out with compressed air.
Bypassed the radiator cooler and am running just the external oem
cooler. Did all the required relearns as well.
The truck shifts through all gears perfectly from a cold start and
continues to do so for about 4 miles or until the transmission gets up to
temperature (165-185 degrees Fahrenheit). Once it gets to temp it
starts to slip into 4th and 5th then shortly after looses 4th and 5th all
together. From there you have to use manual 1-3 to get back to the
shop. It throws a P0734 Fourth Gear Ratio 1st and if you drive it too
long you get a P0735 Fifth Gear Ratio and P0717 Input/Turbine Speed
Sensor Circuit as well.
A little background on the customer... I quoted her for a used
transmission swap but after seeing that the glycol contamination was
widespread I offered to rebuild at the same quoted price if the valve
body/tcm could be saved. If it couldn’t she would have to buy a valve
body/tcm which indeed happened in the end. I offered this because she
is a family friend and thought I would help as she is a single
grandmother with custody of her grandchildren. Bad idea! She doesn’t
realize anything that I am doing for her and is botching and demanding
warranties after the fact. Now that we have this problem it’s gotten even
worse.
So my main question is.... Does anyone have any idea what the
problem is? I have hear that it’s common after a rebuild to get a these
codes with flare up from 3-4 with a neutral 5th if the input shaft seals
were not installed correctly. It seems a lot of rebuilders use 47re or VW
09G sealing rings on the input shaft instead of oem due to the
possibility of damage while installing or leave the original seals on the
input shaft alone if not damaged.
My second question is about interchange/compatibility between the
RE5R05A transmissions. Since I only charged her for a used
transmission the fastest fix may be to buy a used transmission. The
only way this will make since money wise is if I can use a RE5R05A
from a G35 or such that only cost $300-400 with low miles. I saw a post
from a guy who put a 2008 G35 trans in his 2006 Pathfinder. He said all
he had to do was use his original valve body/tcm (I have a brand new
already programmed), swap the bell housings, swap the tail shaft
housing, and flip the shift shaft and rooster comb from the driver to
passenger side. He used the g35 torque converter and said it worked
like a charm. I’m trying to find out if this is really all that needs to be
done and which year g35s will work. What about other RE5R05A
transmission? What is required for them to swap? I’m shooting more
towards the cheaper versions ie g35, 350z, etc but will take into on all
of them. I think this would be a better option then trying to replace the
input shaft seals and possibly end up in the same place again.
Once I get her happily gone I can dig further into the problem with the
rebuild slowly and then find a vehicle with a bad trans to put it in and
keep/sell.
I appreciate ANY help and thank you in advance!!
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Nissan Frontier Forums : Problems / Technical
Topic: RE5R05A Compatibility/Interchange/Swap
