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Gibbons method for trans fluid 2012 XC70

Help, Advice, Owners' Discussion and DIY Tutorials on the third generation Volvo V70 wagon and XC70 crossover, and second generation S80. Are you an owner? Prospective owner? Get in here and join us! Start a new topic or comment on an existing thread.

2008-2016 V70
2008-2016 XC70
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headrc
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Gibbons method for trans fluid 2012 XC70

Post by headrc » Sun Nov 04, 2018 11:42 am

Has anyone else here used the gibbons method for replacing trans fluid on a 2012xc Volvo? I have done it on my 1998 v70 and want to know if there are any new issues for the later Volvo's using this method. Thanks, RH



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Re: Gibbons method for trans fluid 2012 XC70

Post by jimmy57 » Sun Nov 04, 2018 6:16 pm

The cooler line fittings are different and are plastic pipes with a squeeze to unlatch fitting. You will have a hard time getting to the fittings as the cooler is not in radiator but is just bolted to it with external coolant hose connections.
Drain and refill is easy on that car. You need a TX 40 and TX55 bits and a 17mm allen wrench or hex bit. The fill plug is on front left corner and is the TX 55. Long extension gives access. The check plug is the TX 40 on bottom of trans inside the 17mm female hex drain plug. Remove the TX40 and have your pan ready as some will drip. Then remove the 17mm drain plug. I allow it to drain for a time. Then you re-install the drain plug to 35 ft pounds and then just snug the tx40 plug in the middle. Fill a gallon of fluid in the fill plug and then put that plug in and tighten. Crank engine and feel the two hard plastic lines to the rad mounted cooler. When one of the lines get to 100+ degrees (technically it is supposed to be 50C/about 125F, you may have a way to read trans fluid temp with an obd-ii port reader) then leave it running (level ground in Park) and remove the TX 40 plug and let all that will drain run out. When it gets to am inconsistent drip put in the TX40 plug and tighten it. You're done. No dipstick. You'll see the drain plug has a 3 inch pipe on it. The fluid level is 3 inches with warm, not fully hot, fluid.
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headrc
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headrc

Re: Gibbons method for trans fluid 2012 XC70

Post by headrc » Sun Nov 04, 2018 7:42 pm

Ok Jimmy ...thank you once again. So no Gibbons method on this car ....with the method you describe there is confidence that all of the trans fluid will be exchanged and changed?



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Re: Gibbons method for trans fluid 2012 XC70

Post by jimmy57 » Sun Nov 04, 2018 9:38 pm

No, drain and refill gets about half.
Is there something foreign like water or something else that has gotten into fluid?



headrc
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Re: Gibbons method for trans fluid 2012 XC70

Post by headrc » Mon Nov 05, 2018 9:02 am

No nothing foreign....just the education that you want to make sure and exchange all the fluid to make sure all of it is new fresh fluid. The car has 82000 miles on it at this point. How could I achieve getting all the fluid replaced? Drain and refill twice?



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Re: Gibbons method for trans fluid 2012 XC70

Post by erikv11 » Mon Nov 05, 2018 12:41 pm

Jimmy is saying 1/2 at a time will suffice but about drain and refills, if once replaces half of the fluid, then:

twice replaces 3/4 of the fluid,
3 times gets you to 7/8,
4 times is 15/16

etc.


'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 140k
'98 S70 NA, 210k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 280k
'06 S60 R, 160k
gone: '96 NA 850 210k, '98 NA V70 182k

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Re: Gibbons method for trans fluid 2012 XC70

Post by jimmy57 » Mon Nov 05, 2018 12:50 pm

There is a misconception that all the trans fluid needs to be replaced at once. That is only needed if there is some sort of "poisoning" of the fluid.
82000 miles is not in the range of big risk but if your transmission has some deposits on sealing surface and the rubber seals have hardened then a total replacement can clean the deposits in minutes but the seals will take some time/miles for the new fluid to seep into them and soften them. This can result in the transmission not going into gear or missing a gear. The sealing is good only because the layer of buildup seals the seals. If you do a drain and fill that replaces half the fluid you reduce the risk of any "shock" to the transmission and the additives in fluid that heat and years will diminish will be back to a better concentration. The cleaning done by detergents in the fluid will happen more slowly. Drain and fill again if you choose can be done 5000 miles later or longer. Many transmissions, the 5, 6 and 8 speed units in Volvos, use a strategy that is referred to as "slipping lock up" for the torque converter (TC). The TC has clutch that eliminates the inherent speed difference that a fan-fluid coupling has. The TC blade pitch and diameter can be chosen to make the car have better acceleration from a stop and then once the car is moving the gear changes will occur to get the trans into a higher gear for better mpg via reduced engine speed. The issue is the TC that gives you the off the line accel makes the speed difference between engine and trans input shaft be much higher. If the TC clutch is locked at low engine speed the feeling can rough and engine vibration is felt and heard in the car. If the TC clutch is applied and the speed diff is brought down to 50 RPM, not totally locked, the MPG goes up, sense of engine performance is better and the engine vibes are handled. The downside is that the dye in fluid is darkened by the flash high temp for the instant the fluid circulates by the clutch in TC during the slipping lockup phase. People that don't drive 35-50 mph very much will not see the dark fluid as the slipping lockup only occurs in that speed band. If you change fluid and you drive in that speed range a lot then the fluid will get dark again. The darkening is not an indication of a problem but there is an inherent sense that if I change a fluid the ugly color should be gone and the fresh color should be evident. Late model transmissions in most makes are considered no fluid service needed in normal use. There will always be some micro particle of metal in a gearbox as the friction linings wear against the metal mating surface just as brake rotors wear from brake pad friction material. The filter in trans catches most but some is small enough to pass through the paper. So I think draining the trans, allowing the sediment to drain out and to replace the fluid lost will decrease the level of the wear particles and reduce whatever wear that causes to things inside trans. I will do drain and fills every few years, 40K miles, and know it makes a difference.
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headrc
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Re: Gibbons method for trans fluid 2012 XC70

Post by headrc » Mon Nov 05, 2018 6:47 pm

You know your stuff Jimmy ..I have VIDA and I could not really understand the process it outlines until I found a video on a guy who followed this process. Is this the "slipping lock up" procedure you are referring to? For your reference here is the video: You really are a giving person to spend so much time with this DIY market here. Thank you



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Re: Gibbons method for trans fluid 2012 XC70

Post by xHeart » Tue Nov 06, 2018 7:34 am

Thank you for sharing.
It is Gibson method with resetting fluid at TCM over VIDA.


--
Golden Retriever | 2014D VIDA DiCE | 2013A XC90 +144mi/231km | 2001 V70XC 1st Owner +196mi/ +315km | 1997 Volvo 850 NA 1st Owner +180mi/ +289km
Past: German Shepherd | 1989 Volvo 740 GL | 1979 Volvo 240

headrc
Posts: 26
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Year and Model: 1998 v70xc
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headrc

Re: Gibbons method for trans fluid 2012 XC70

Post by headrc » Tue Nov 06, 2018 7:41 am

My pleasure



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