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 really appreciate all your help and any info you can give me. I know there was a guy on here years ago that was the go to for these RE5R05A swap questions but not sure if he is still around. Thanks again in advance!!!
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 really appreciate all your help and any info you can give me. I know there was a guy on here years ago that was the go to for these RE5R05A swap questions but not sure if he is still around. Thanks again in advance!!!
