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-   -   Transmission fluid change Help (http://www.wranglerforum.com/f210/transmission-fluid-change-help-206441.html)

JP4VPI 12-20-2012 07:48 AM

Transmission fluid change Help
 
I am about to attempt to change the transmission fluid in my Nv3350 with redline mtl. I am not super mechanically inclined. Which side is the fill plug on? It looks like there could be 2 possibilities. Could someone post a pic maybe? Thanks in advance'

John

JP4VPI 12-20-2012 09:47 AM

Bump

TiltMaster 12-20-2012 09:51 AM

There's no plug. You have to unbolt the pan one side at a time and tilt it. Check YouTube. There's probably some dude that's filmed it, I'm sure. My $.02? Take it to a place that can flush it. Changing the fluid yourself only replaces the fluid in the pan. Take the skid plate off so they don't charge you for that or tear it up for you. Put it back on when you get home.

Jeff81 12-20-2012 10:04 AM

Quote:

Originally Posted by TiltMaster (Post 3125570)
There's no plug. You have to unbolt the pan one side at a time and tilt it. Check YouTube. There's probably some dude that's filmed it, I'm sure. My $.02? Take it to a place that can flush it. Changing the fluid yourself only replaces the fluid in the pan. Take the skid plate off so they don't charge you for that or tear it up for you. Put it back on when you get home.

You are refering to the automatic, there is no pan on the NV3550.

The drain plug is on the bottom, the fill plug is on the drivers side. Both take a 17mm Allen Key. Here is a link with instructions:
http://4x4xplor.com/trannyservice.html

JP4VPI 12-20-2012 10:20 AM

Thank you very much. Looks like its time to find that bit and a hand pump to refill it

Jerry Bransford 12-20-2012 10:23 AM

1 Attachment(s)
This should help...

JP4VPI 12-20-2012 11:10 AM

I found some rubber tubing and a small reservoir I can attach to it. My plan is to stick one end of the tube into the fill hole and run the tubing up outside of the jeep and pour the fluid into the reservoir and have it gravity feed into the hole. Anybody see a catastrophic error in this plan?

JP4VPI 12-20-2012 11:15 AM

Thanks Jerry

jersey steve 12-20-2012 11:22 AM

I'm also looking to replace the trans fluid on our Jeep. How do I determine which trans I have (AX-15, NV3550, other?)?

Thanks.

sm

JP4VPI 12-20-2012 11:24 AM

What year and engine? If its 4.0 and 97 to 99 it's ax15 and if 4.0 200 to 2004 it's nv3350. 4 banger is ax 5

ohioviper 12-20-2012 12:06 PM

You wont be able to get the tube high enough on the outside of the Jeep to get it to flow into the trans because it will have to go down and then back up if that makes sense. Your best bet is to use a pump or rig up a short tube and raise the oil jug between the tranny and the body above the oil fill plug.I just did this about 2 weeks ago and its not fun trying to use a tube and fit the oil jug up in there. Try to find a oil pump like the one in the picture that will fit the oil jug.


http://4x4xplor.com/images/ax15-np231/DSC02082.jpg

JP4VPI 12-20-2012 12:12 PM

Where did you find that?

JP4VPI 12-20-2012 12:13 PM

Also if the head of the fluid is high enough it will but il look for the pump

Jerry Bransford 12-20-2012 12:33 PM

So long as the bottle is held significantly higher than the fill hole of the transmission, even if the flow has to go down & back up, it will flow into the transmission. I've done that many times, you only need a long enough vinyl hose. The hose needs to have as big of a diameter as will fit into the fill hole or you will be there a long time waiting for it to finish. :)

agent1718 12-20-2012 01:32 PM

Harbor Freight has the pumps cheap, and if you dont have one near by, I got one free from my ATV parts store to fill the diffs on my rhino..

agent1718 12-20-2012 01:35 PM

Here is a whole write up with pics for you.. hope this helps...

Jeep NV3550 Transmission & NP231 Transfer Case Service

TwoJeepsinTx 12-20-2012 02:33 PM

Quote:

Originally Posted by agent1718 (Post 3126378)
Here is a whole write up with pics for you.. hope this helps...

Jeep NV3550 Transmission & NP231 Transfer Case Service

This is the link I used the first time I changed my fluid. I wanna say they had the pump at o'reillys, couldn't have been more than a few bucks.

If you use gravity make sure you have something holding the hose securely. Even wedging it into the transmission it popped out on me once I started pumping. You'd be pissed if you poured a whole bottle of that redline onto the ground on accident. :facepalm:

ohioviper 12-20-2012 03:43 PM

I will say this that Redline is some good stuff.Made a huge improvement in the shifting and feel of the shifter.

bamapaddler 12-20-2012 05:00 PM

I changed my fluid just yesterday. I tried to do it with a siphon pump, but that just wouldn't work. I then went to Lowe's and got a 5 foot piece of clear vinyl tubing. The diameter I chose was 5/8, because that fit the funnel I already had handy. I ran the tube up through the engine compartment and stuck it onto my funnel. I had a friend help. I held the bottom end of the tube in the fill hole, and he poured the fluid into the funnel. It was much fast easier and less messy than the siphon pump method was.

JP4VPI 12-20-2012 06:23 PM

Thanks to all for the help. Sears was sold out of the 17 mm Allen bit :(. So looks like Ill try harbor freight tomorrow to get a pump/ tubing and Allen key.

JP4VPI 12-21-2012 11:32 AM

Jus finished changing the fluid. Thanks I all for the help. It went very smooth and painless. Jerry your the man It sure feels good doing my own maintenance


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