Absolute
New member
Weird, I was able to give the toyota dealer the part numbers. Interesting.
Looks good though!
Breather Install
- Thread starter Eric G
- Start date
Weird, I was able to give the toyota dealer the part numbers. Interesting.
Looks good though!
martini
New member
Those clips for the cargo net are extremely hard to get off, I even broke the side of it but still didn't get it off. I read online that you have to press in on the sides from behind but nothing really seemed to be able to be pressed in to remove it. Does anyone have any tricks?
SSt4r
New member
Martini, they are a pain. Grab the star shaped section by just the edges & pull out. You may have to wrap your fingertips around the back a little but try to stay at the edges. You'll see its like a cover & pops out 1/2" to 1". Think of pulling a coffee cup lid off a cup from the top with just your fingertips. Hope that helps.
Flexus
New member
If your vehicle doesn't have a second breather under the hood then the breathers for the tranny/xfer are under the shift boot (on top of the tranny). They are pretty high is my point.
The metal ones on the rear axle have a check valve and yes you could potentially suck water past the two seals at each rear wheel. The plastic breathers with the hose fitting just have the dust cap and no check valve.
Extended Axle breathers
The metal ones on the rear axle have a check valve and yes you could potentially suck water past the two seals at each rear wheel. The plastic breathers with the hose fitting just have the dust cap and no check valve.
Extended Axle breathers
Climr
New member
Thai:Something else to think about...at least in the 4th gen 4runners, there are 1 to 2 breather tubes in the engine bay, on the driver's side of the engine block. If you have a V6, then you should have 2 breather tubes (with silver caps). If you have a V8, then you should have only one. The transmission and transfer case do NOT have breather extension. They have breather caps just like the rear axle. So, Toyota only extended the front differential...the other stuff is for your weekend projects!
Here is some good info on the FJ forums: SCUBA Driver Transmission, Transfer Case, Rear Differential & E-Locker Breather MOD - Toyota FJ Cruiser Forum
I would highly recommend the above mod(s) if you go off-roading a lot or do mudding/river crossings.
In looking at that FJ forum, there are 6 breathers to consider: 1) the front diff, 2) the front actuator, 3) the rear diff, 4) the tranny, 5) the transfer case, and 6) the E-locker.
I have an '08 4th gen V6, so I was able to locate two breathers in the engine bay up by the battery. I assume these two are the front diff and front actuator, correct?
I was also easily able to locate the low hanging rear diff one, which I intend on moving up soon here. This leaves three breathers.
I managed to locate another one behind the engine just on top of the tranny, which I'll assume is the tranny. Does the 4runner have a transfer case breather as well? Is it just tucked up closer to the engine? And lastly, do the 4th gens have E-lockers and consequently a breather on that as well? I know I have a center diff lock, so shouldn't it be down there somewhere?
RanchoRunner
New member
Just an FYI: I installed a rear diff breather in my '07 FJC, running it inside the jack compartment like Doozi....be aware that when the rear diff heats up (like climbing in the mountains, or towing), you will get the gear oil odor in the passenger compartment. I used a small Spectre cone-type breather filter from AutoZone at the terminus, as was done by a number of other FJC owners.
Doozi
New member
You do get some gear oil odor in the passenger compartment on longer drives. I noticed it on a 2200-mile road trip to the Midwest. Obviously, we ran into some humid conditions so I had the "Recirc" button on with the AC and noticed the smell... turning the "Recirc" off to pull in outside air almost immediately got rid of the smell. Aside from that trip, I've never noticed it.
4boer2
New member
Noise
I just completed the breather yesterday and anyone in Chicago knows that the 4" of rain we got made some massive puddles, so I had to "test" the breather out. Well, my install may have failed the test. Driving around town I can hear a faint hum. (think of a five year old mmmmmmmmm). Here is what I think it might be:
1. Driving through puddles at speed ruined the new front bearings :wow:
2. Water has gotten through my connection at the diff. (cap is at the gas filler neck) However, I dropped the spare and checked but the hose was still tight and not rubbing any spinning thing. So does water in the diff oil make any noise?
3. The extended volume of the diff that I created just naturally reverberates noise. I really hope this is the case.
Thanks!
I just completed the breather yesterday and anyone in Chicago knows that the 4" of rain we got made some massive puddles, so I had to "test" the breather out. Well, my install may have failed the test. Driving around town I can hear a faint hum. (think of a five year old mmmmmmmmm). Here is what I think it might be:
1. Driving through puddles at speed ruined the new front bearings :wow:
2. Water has gotten through my connection at the diff. (cap is at the gas filler neck) However, I dropped the spare and checked but the hose was still tight and not rubbing any spinning thing. So does water in the diff oil make any noise?
3. The extended volume of the diff that I created just naturally reverberates noise. I really hope this is the case.
Thanks!
talonjade
New member
Hey did you ever get this resolved? :wow:
I'd like to say that I've successfully done the rear diff breather mod on the new 4th gen 4runner. The existing parts worked as I expected.
Expected time: 1 hr or so including trying to take pix.
Tools required:
13mm and 14mm Box/Open wrenches
Screwdriver
Wire Cutter
hot water
Image of the stock rear diff (looks the same like any toyota!)
Use a 14mm wrench to remove the stock breather. Before removing the breather completely make sure to clean around the breather so you don't get anything side.
Should look like this when you remove the breather..
Add the union into the differential housing. Should tighten down but will have a thread or two shown. (Use 13mm wrench)
Attach the hose. Make sure you have enough slack so when the diff is at it's lowest point you still have enough hose for it to move.
Run the hose along any route to a higher point in the vehicle. I chose to run it into the gas cap area which is pretty darn high. If the water goes that high I'm already in trouble anyway!
Dip the other end of the hose in hot water to let the rubber hose expand. Then insert the new breather and clamp it down. Find a place to secure it and you're done!
30 min sounds about right... just takes abit longer when you try and take some pix... esp taking gloves off so your camera doesn't get dirty
well i did think about using wd-40 but i just didn't want any unkonwn fluids to get inside the hose. figure if i used hot water, the water will evaporate whereas the wd-40 will stay on the hose for a long time... hence might mix w/ the oil inside... so i figure ehe hot water should do the trick
actually the 3/8" was fine for me. dunno but hey if it works, it works!
1> the entire length of my hose was about 5 ft and 2 inches or so... i think if you have 18" of space hose you're okay... (don't rem exactly but i did read somewhere that if you have about 5-6ft of hose from the diff to the gas cap then you're fine...
2> i put the breather to the 8 o'clock area. i made a hole about 1/2 the size of the hose and just forced it in there. i purposely left alot of slack in the gas cap area because i didn't want the breather to get stuck on the wall of the gas cap. that breather has to be able to move (i.e. spring inside to let air out) so make sure it's free to move around. (hence the question 1... have extra )..
3> yeah the hissing was normal... nothing to be worried about
thanks for the good info!
gigerunner
New member
<iframe width="560" height="315" src="//www.youtube.com/embed/hXqzJJtKW7A" frameborder="0" allowfullscreen></iframe>
cool informative video
just one more thing on the to do list, before I take out my t4r
cool informative video
just one more thing on the to do list, before I take out my t4r
Last edited:
Falonious
New member
NAKaveli71
New member
So I found this video about relocating the rear diff and e-locker using the ARB kit: https://www.youtube.com/watch?v=FGelulaLo90 and was wondering if the guy couldn't have just used the ARB breather manifold to also connect the e-locker line like he did with the rear diff line? (fast forward to minute 12:20). In the vid it looks like he relocates the e-locker line using the oem breather next to the ARB breather manifold...
Liquidmantis
New member
Yeah, the ARB manifold has four connections. Both of my lines are connected to it.
