Tranny Temp Gauge
01-16-2014, 09:06 PM
#61
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Curious... this filter setup on an older AW4 (211,xxx miles), would it potentially cause harm? I ask because I have heard that over years, tiny amounts of the clutch plates can particulate into the fluid. Hence why sometimes a full on fluid replacement isn't recommended. Would this filter remove those 'necessary' particles?
Disclaimer- the above is interwebz info. I very well may be wrong so please correct me at will.
Disclaimer- the above is interwebz info. I very well may be wrong so please correct me at will.
That's bunk about fluid replacement.
Kinda like having a professional teeth cleaning causing tooth loss.......
01-16-2014, 09:16 PM
#62
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Year: 1995
Model: Cherokee
Engine: 4.0L HO
Curious... this filter setup on an older AW4 (211,xxx miles), would it potentially cause harm? I ask because I have heard that over years, tiny amounts of the clutch plates can particulate into the fluid. Hence why sometimes a full on fluid replacement isn't recommended. Would this filter remove those 'necessary' particles?
Disclaimer- the above is interwebz info. I very well may be wrong so please correct me at will.
Disclaimer- the above is interwebz info. I very well may be wrong so please correct me at will.
I can't imagine particles in the fluid being a good thing, if the clutches are badly worn grit in the fluid won't help much or for very long (would be similar to the old used car dealer "trick" of sawdust in the fluid) and loose particles have the potential to score bearings or clog/damage the valve body. Usually what I hear about changes is to avoid a pressure flush which can knock "gunk" loose causing fluid passages to be clogged (especially if the fluid hasn't been changed in a long time), but that a fluid change (either by drain and fill or a "flush" through the cooler lines using the transmission's own pump) is beneficial.
My AW4 has a little over 220k mi on it (I put the filter and cooler on at around 215k mi) and I haven't had any issues with this setup, I also changed the fluid not long after I got the Jeep (with a total of 5 drain and fills spread over about 1,000 mi., 3 would have probably been sufficient but DexronIII is cheap).
Last edited by dmill89; 01-16-2014 at 09:21 PM.
01-16-2014, 09:58 PM
#64
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Year: 1998 Classic (I'll get it running soon....) and 02 Grand
Model: Cherokee (XJ)
Engine: 4.0
The problem isn't fluid replacement.
The problem is that some shops offer a "transmission flush" that consists of disconnecting the cooler lines and hooking them up to a machine, which then flushes the trans with high pressure. It's basically pressure-washing the interior of the trans.
On an older trans, this can dislodge things, resulting in clogs later. Not good!
Just replacing the fluid with the correct, CLEAN fluid is a good thing.
Particles in the fluid are not "necessary", they are a PROBLEM.
The problem is that some shops offer a "transmission flush" that consists of disconnecting the cooler lines and hooking them up to a machine, which then flushes the trans with high pressure. It's basically pressure-washing the interior of the trans.
On an older trans, this can dislodge things, resulting in clogs later. Not good!
Just replacing the fluid with the correct, CLEAN fluid is a good thing.
Particles in the fluid are not "necessary", they are a PROBLEM.
01-17-2014, 05:12 AM
#65
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Year: 1991
Model: Cherokee
Engine: I-6 4.0 HO
Thank you masses of CF for once again replacing my ignorance with real facts. Now I know!
And knowing is only half the battle...
And knowing is only half the battle...
01-17-2014, 11:06 AM
#66
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Year: 1998
Model: Cherokee
Engine: 4.0L HO
........and some tranny shops use a flush machine that utilizes the vehicles tranny pump to circulate old fluid out/new fluid in....in other words, no high pressure is used.
01-17-2014, 02:35 PM
#67
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Year: 1991
Model: Cherokee
Engine: I-6 4.0 HO
I am curious.. what pressures are going in and out of the trans cooler lines? I know internally the trans uses high pressure... but given that coolers can be attached with simple hose clamps...
04-11-2014, 08:35 PM
#72
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Year: 1998
Model: Cherokee
Engine: 4.0 Straight 6