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HELP !, Transmission Trouble! - Click HERE for Original Thread
Homms'03Murano
Hi guys....Very Long time my old good friends....Njjoe, Gonzo, etc.....how's everyone been?....if you'd forgotten, I'm homms from Abuja, Nigeria buys and I'm sure you've not 4gotten my steady posts of various problems where I seeked for all the members' advice & guidance......well, if you've missed them, HAVE I GOT A DOOZEY FOR YA!!!.

A few weeks back I felt something like an engine ove-heat and I was driving. when I parked my baby, went to see a friend & wen I came out I noticed "Irish-cream-colored" liquid on the ground. opened the hood, and saw no evidence of radiator troubles. when i opened the reservoire, THERE IT WAS. The color was not the usual water/antifreeze coolant but rather this beige-is,h fairly thick-like liquid & i noticed like a "whinning" sound & the MO was jerking and acceleration + movement was very eratic.

the following day, I called my mechanic and he said somehow, the collant from the radiator mixed with the transmission oil (ns-2/ATF oil). Asked him what caused it & he says he'd have to drop down the auto-transmission completely and check. Due to the fact that he didn't come on time the following day, I called my back-up mechanic and he agreed with the 1sts' assessment. he took the car and instead of dropping down the Transmission thing, opened it up from underneath and drained the liquids. He did that twice, yet the color was the same (irish-cream). after checking the connection to the radiator, he confirmed that a piece of metal inside at the top-end of the radiator was clogged up and got damaged, that had cause the water to back up into the gear thingy and hence the mixture.

Now, after replacing the metal, put in another goze of ns-2 but still the same. and the Whining sound all the while didn't stop. Now, I brought the 2 "genuises" together and had them put heads and sort this thing out. they went off and after 6 hrs of work they came back together and the had treated the water/oil issue and the car was moving fine. Thyey said that still they advice I replace my entire auto transmission (which here costs a f--g bundle). they said the "converter", Pump & "fibers" (all these are approximate names guys , I don't know what the heck they mean or if even they pronounced them right) ARE BAD & need to be replaced.

NOW, I'm sorry for the Very long post people, but I decided to be aas thorough and detailed as I can (remember) in the hope that Someone out here would find me a solution (home-made or otherwise) and HHHHEEEEELLLLLPPPPPPP me !!!

Njjoe, guys....I need ya!....what can I do. What should I do. What what what!!!!??????
njjoe
Homms-

As much as I enjoy hearing from you, I would prefer to never hear from you if that meant your MO was running fine. :D I figure no news is good news. :4:

Let's see...

The MO has two oil (NS2) to water intercoolers that are designed to transfer the heat from the tranny fluid to the coolant in the radiator and then out to the air. The main intercooler is located in the base of the radiator. The second intercooler is located on the front/right of the CVT and gets it's coolant supply from the heater hoses. It sounds like your mechanic found a leak in the primary cooler.

I have no clue as to why this would have happened. I do not recall anyone else reporting a problem with the intercoolers.

The oil circuit in the CVT operates at a significantly higher pressure than the engine coolant system. That works in your favor because a leak in the intercooler would have the CVT oil flowing into the engine coolant circuit. Contamination of the CVT fluid circuit may be minimal.

My suggestion is to perform at least one or two more CVT fluid flushes to get rid of as much contaminated fluid as possible from the tranny. The NS2 fluid is not cheap, but it is a lot less expensive than replacing the entire tranny.

I also suggest performing an engine cooling system flush.

Drive it around after the CVT fluid flush and see if it runs any better.

Let us know what happens.

Good luck, my friend. I hope all goes well.

-njjoe
Warhammer
Man...sounds like you got an extremely interesting issue here. I think Njjoe is right. Flush the hell out of it and then closely monitor the issue. Spending $300.00 in CVT and radiator fluid and another $100.00 or so in professional engine and CVT flushing will pale in comparison to completely swaping out the entire CVT.

Maybe by flushing it out really well it will continue to perform as expected. You may get lucky on this one.

Do you still have any warranty at all?

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