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Dodge 42RLE transmission fluid change. Or not? #5346081 02/10/20 11:05 AM
Joined: Sep 2005
Posts: 742
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Fordiesel69 Offline OP
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Joined: Sep 2005
Posts: 742
I know the answer but want your opinions......

On my ford 4R70W, 4R75E variants, I have never caused a failure by changing the fluid and filter. Even when the fluid was poor.

I have a 42RLE in a dodge nitro, and with 150k I do not know the history. It shifts perfect but I experianced a neutral flare after a very sharp right had turn. I think it sucked air from the super aggressive turn and it being a touch low. The fluid is a brownish motor oil color and smells stale, not burnt! I heard ATF+4 does not retain its color dye very well with age. And acceptable fluid can look bad and not smell burnt.

I want to pull the pan, and unless it is covered in clutch debris change the filter and put in new fluid for however much came out, and call it a day. I do not want to do a "flush" or multiple fluid change with that kind of mileage and condition of existing fluid.

Is this ok, or is this tranny sensitive to fluid changes washing the debris into the valve body and damaging the rest of the transmission?


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Re: Dodge 42RLE transmission fluid change. Or not? [Re: Fordiesel69] #5346147 02/10/20 12:23 PM
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jeepman3071 Offline
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Yes, definitely change the fluid. Chrysler transmissions are very sensitive to having good fresh fluid. Use only ATF+4.


1998 Jeep Wrangler Sahara 4.0L/5MT (156k) - PHM 10w30, Wix 51085
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Re: Dodge 42RLE transmission fluid change. Or not? [Re: Fordiesel69] #5346155 02/10/20 12:30 PM
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demarpaint Offline
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Joined: Jul 2005
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I'd do it. But if I were dropping the pan, I'd change the filter unless everything inside was pristine.


God Bless Our Troops

Re: Dodge 42RLE transmission fluid change. Or not? [Re: Fordiesel69] #5346182 02/10/20 01:01 PM
Joined: Mar 2008
Posts: 9,354
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slacktide_bitog Online Content
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Joined: Mar 2008
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Get an aftermarket pan with a drain plug, so future ATF changes are much easier smile

Redline C+ is good stuff to use where ATF+4 is called for. If that costs too much for you, then use any ATF+4.

Re: Dodge 42RLE transmission fluid change. Or not? [Re: Fordiesel69] #5346184 02/10/20 01:03 PM
Joined: Aug 2010
Posts: 7,267
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Kira Offline
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I think the OP wants to change the filter.
The "unless" he employed referred to going to a plan B due to severe internal woes.
When the pan resembles a person's lawn after a roof tera-off, it's bad.

Re: Dodge 42RLE transmission fluid change. Or not? [Re: Fordiesel69] #5346242 02/10/20 01:50 PM
Joined: Nov 2013
Posts: 63
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TriMoto Offline
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These 42RLE are garbage. FWD trans flipped around.

Re: Dodge 42RLE transmission fluid change. Or not? [Re: TriMoto] #5346478 02/10/20 05:31 PM
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zrxkawboy Offline
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Joined: Nov 2004
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Originally Posted by TriMoto
These 42RLE are garbage.


How have they failed for you? Ours has 130k miles and is going strong.


"Think of all the Ford owners who will someday want an automobile." John Dodge

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