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#4566446 - 11/07/17 05:18 AM Transfer case "gauge" hose.
dlundblad Offline


Registered: 09/30/13
Posts: 10045
Loc: Indiana
Probably a question better suited for a Jeep forum, but I've only seen it once so figured I'd ask here anyways.

I saw a photo where someone took a clear flexible hose with threaded fittings on the ends. One end went onto his transfer case's fill hole and the other went onto the drain hole. The result was a nice u- shaped inspection "gauge" that would clearly show the fluid level without getting under the vehicle and removing the fill plug.

The question is for my truck, which also has a New Progress/ New Venture transfer case. A co worker directed me to my transfer case's fluid level when I was complaining about my lack of power (clogged cat).. Wasn't the issue, but sure enough it was LOW. Common GM thing I guess. Took well over 1 quart. This is just a band aid until I can fix the leak. I pulled just over 10k out of the last fill so I should be good for a while. shrug

Can anyone think of where to start looking? I can't even find a flexible enough hose to make that bend.
_________________________
03 Jeep WJ 4.0 199k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 145k Rotella T5 10w30 Fram TG3980


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#4566448 - 11/07/17 05:22 AM Re: Transfer case "gauge" hose. [Re: dlundblad]
dlundblad Offline


Registered: 09/30/13
Posts: 10045
Loc: Indiana
Also, I used Maxlife on the first fill and re-filled with Maxlife because it's what I had on hand.

Probably going to start topping off with DexIII. It's a mineral oil and a tad thicker. Certainly won't hurt anything.
_________________________
03 Jeep WJ 4.0 199k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 145k Rotella T5 10w30 Fram TG3980


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#4566512 - 11/07/17 07:20 AM Re: Transfer case "gauge" hose. [Re: dlundblad]
Chris142 Online   content


Registered: 06/05/03
Posts: 16824
Loc: Deplorable in apple valley, ca
I have seen that too. But I would just top it off every 3000 miles or so.
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02 Wrangler durablend 10w40
87 F250 traveler 15w40
04 Tahoe super-s 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
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#4566566 - 11/07/17 08:33 AM Re: Transfer case "gauge" hose. [Re: dlundblad]
Nick1994 Offline


Registered: 02/19/13
Posts: 10115
Loc: Phoenix, AZ
Sounds like another possible point of leakage.

Have you found where it's leaking?
_________________________
2015 Hyundai Sonata 2.4L 79k PU 5w30 & OEM
2000 Toyota Camry 2.2L 228k M1 AFE 0w30 & Wix
1996 Jeep Cherokee 4.0L 146k M1 HM 10w40 & Fram Ultra

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#4566567 - 11/07/17 08:33 AM Re: Transfer case "gauge" hose. [Re: dlundblad]
LeakySeals Offline


Registered: 02/18/11
Posts: 6578
Loc: Hudson, NH
Originally Posted By: dlundblad
Also, I used Maxlife on the first fill and re-filled with Maxlife because it's what I had on hand.

Probably going to start topping off with DexIII. It's a mineral oil and a tad thicker. Certainly won't hurt anything.

Actually, Dex VI is a tad thicker than Maxlife these days. Dex III is much thicker than Maxlife. I know because I had to remove maxlife from my GM BW4481 TC. Shuddering when accelerating around corners was horrible. Oreilly has a nice Dex III-H fluid, the spec for my TC. All is fine again. I plan to get it out of my transmission as well. I'm wondering if maybe its responsible for the slow downshift as well.
_________________________
06 Escalade 6.0L AWD 160k. M1 5w30 Fram TG
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#4566572 - 11/07/17 08:39 AM Re: Transfer case "gauge" hose. [Re: dlundblad]
LeakySeals Offline


Registered: 02/18/11
Posts: 6578
Loc: Hudson, NH
I think you would be better off getting the $5 pump that fits the top of the quart and pumping till it flows out fill hole. If you're concerned about overfill, open fill hole when its hot. Some will seep out due to expansion. Then you know its not too high, plugging the vent so it can't breathe, which creates pressure, and a leak. Make sure the vent is not pinched, hanging down, etc.

Note: the manual tells you the exact height, but what I told you is safe alternative to attempting to measure down from fill hole.
_________________________
06 Escalade 6.0L AWD 160k. M1 5w30 Fram TG
03 Maxima 3.5L 149k ST HM 10w30

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#4566637 - 11/07/17 09:25 AM Re: Transfer case "gauge" hose. [Re: dlundblad]
440Magnum Offline


Registered: 02/01/09
Posts: 8754
Loc: Texas
Well, I wouldn't be too crazy about having a piece of polymer tubing that could get ripped off by a trail obstacle and drain the whole case...

But if you want to do it or its just temporary, I'd probably use brass fittings to make the right angles out of the plug holes so that you have two barb-fittings pointing more or less at each other, and then just use a straight piece of Tygon tubing (probably the type with nylon webbing molded into it- see link), rather than trying to bend the tubing 180 degrees.

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'66 Dodge Polara & '69 Dodge Coronet R/T both 440/727
'08 Ram 1500 4.7/545RFE
'12 Challenger SRT8 392/6-speed
'99 XJ 4x4 4.0/AX15, '14 WK2 4x4 3.6/8HP

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#4566783 - 11/07/17 11:58 AM Re: Transfer case "gauge" hose. [Re: dlundblad]
andyd Offline


Registered: 09/25/04
Posts: 7151
Loc: Marshfield , MA
I've found that on a diff or a transfer case, or anything there is a vent. I parted out the diff in my first BMW. It was encased in delaminating rust. Except the area around the vent. That was a layer of grease and dirt with clean metal below. I always filled until it ran out. I noticed the same thing on the Rat. greasy vents. So, I'm happy if the level is about an inch below. It is room for expansion when the diff gets warm.
_________________________
'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2

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