RE5R05A Coolant Contamination, Nissan Pathfinder - Transmission Repair

2005 Nissan Pathfinder with coolant contamination on the transmission. This is a common problen on this vehicles and has become very expensive to fix. One of the reasons is that basically all of this units have the same issue and is hard to get a TCM or a valve body that has not been contaminated with coolant. So I take action and try to save the TCM when possible. Sometimes it doesn'nt work but we always give it a try. The more you drive this transmission contaminated, the less chancess of survival...So please, as a praventive measure, replace your radiator or install an external cooler and bypass the radiator...If you live in a very cold zone, then replace your radiator. Otherwise the trans fluid will gel and wont warm up. Please Subscribe, click the Like button and leave your possitive comments. Thanks for watching.

[bobhaas]

I am a Nissan Master tech and see a lot of these coolant damaged transmissions and have wanted to know how the coolant damaged the TCM, great job!!!

[sirrealism]

Quick tip on removing the solenoids. I have one on the bench now and all the rubber in the unit was swollen bad which is making getting solenoids out without breaking them. I cleaned the valve body as well as I could and put it in the freezer for a few hours. This shrunk the rubber and the solenoids came right out

 

[marcosmedina]

No questions, just a 'Thank You'. This video demo saved my truck, and in a way my life. You are man!!!

[cavemanjoe]

This needs to be a recall, thank goodness I bought the manual transmission.

[nestorfresno]

VERY GOOD TIP HIRAM.... DIDN'T THAT THIS TCM COULD BE FIX THIS WAY, VERY COMMON ISSUE IN HECHALE GANAS BRO!!!

If you are a 2000's pathfinder owner dont forget to bypass the stupid cooler that's inside the radiator. It will fail. I was getting very bad Torque Converter chatter because i never serviced the transmission or bypassed the oil cooler that's inside. After changing and NOT FLUSHING the transmission fluid and bypassing the oil lines the chatter on a scale of 1 to 10 went from a 10 to about a 2. It's not perfect but i think it was saved. Car shifts fine no loss of power and just a slight chatter.

[neversaves]

this happened to my frontier turns out I was 1000 miles off warranty coverage. had to install a aux. cooler now I need a transmission.

[Knife_Collector]

Has the coolant leak into the transmission issue been fixed on newer vehicles, like 2015 and newer? Frontier included.

[transrus]

Thanks for the info ! I have been going crazy trying to figure this trans out with the same problem??

[ericsamara]

Habibi, I followed your procedure and ended up with p1754 after 300 miles. You need to repair the sealed circuit in the silver box.

[sullen]

I have a 2006 frontier that i was told needed the TCM replaced. I just ordered a new one I should get it in tomorrow. Have you made any videos that will walk me through the process?

[sirrealism]

I called Gary and he told me the same thing. None in the country! I guess your vid has everyone fixing these so there was a run on them and no one has any. This sux because I broke 2 of them taking them off. Looks like I am stuck buying a reman valvebody

[fernandos]

hola, gracias nuevamente por esos videos... soon super detallados. quisiera hacerte una pregunta hiram si me pudieras ayudar, en las 2013 nissan pathfinder cual es la mejor solucion para prevenir la contaminacion de atf con el coolant, , , entre las dos opciones vivo en florida cooler externo? o seria mejor solo cambiar el radiador? si solo hago el bypass con un cooler externo no se sube mucho la temperatura del atf?? y que atf recomendarias para ese carro? original nissan ns3 o alguno mejor? aisin? idemitsu?

[sirrealism]

Hiram Thank you for the vid. I called my transtar rep and was told no they cannot get the solenoids. So I called the number you posted disconected. Called WIT same prob cannot buy the solenoids. Called Dacco same problem. Do you have someone else I can get them from? Thanks

[psycho]

Hiram, your uploads are absolutely awesome and very helpful.I'm working on a 07 Pathfinder with coolant contamination.Are there any updates to this transmission that you would recommend?

[diroik]

Hi Hiram your video is 100% insight into what the issue is with my 2009 4x4 nissan xterra. Radiator fluid got into my transmission and I'm presently in dire need of a TCM replacement. Can you point me in the right direction?

[jbslam]

Good information!  Where can I get the solenoids?  I need to get mine replaced.

[jonathanj]

@hiram Gutierrez Thank you. Nissan has tried making me replace the ECM for $1500+. I refused to believe them because they too were not certain about this issue. Based on this video and contacting other ECM specialists they were skeptical that it was not the ECM rather it being the TCM.
I am replacing my transmission/radiator and TCM at the nissan dealership will this resolve my problem with the no crank/ no start or does further work need to be done?

[stanwardoshiro]

Hello Hiram, I have the same transmission, no coolant contamination but the trans temps are a lot higher than before. I bypassed the radiator, have a second trans cooler in series with the OE one, even have an electric fan on one of them. I installed a temperature sender into the transmission pressure test port to see the temps. It runs at 180degF and used to only run at 150-165 before. Do you know what may be wrong?

[OKxMaliboo]

Awesome tip bro!  If you ever service throttle body and/or disconnect wiring on nissan late model this is how u fix  NISSAN ALTIMA - Idle Relearn Procedure - This How To - Works Easy 2005