trans swap...
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Freshman User
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trans swap...
hey all.... first time posting on this site, I know I should say hi in the intro - but I just never really got to it. so HI everyone. I do have a question though. I own a 93 aerostar shorty and my mum has a 91 and an 89 shorty. The 89 she had since new and has gone through 3 transmissions since @ 1999. The 91 is basically a parts van now. lots of powertrain service was done to this one in hopes that the bodywork would do itself, hehe. My question is... my brother and I are in the process of putting the 91 trans in the good 89 van - we took the pan off the donor trans and the fluid was like new, however the bottom of the pan was caked with sludge and the magnet was black with what looked like metal filings/sludge. The van has been driven roughly a total of 1km within a year. Shifted a little rough last time driven... Is this trans toast or what? my mum just wants to have it work for around a year, and I don't want to do this work for nothing, ya know what I mean? Anyway, just thought I'd ask you guys for your opinion.
AUSSiE
AUSSiE
Lead Driver
Joined: Sep 2003
Posts: 7,016
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From: SoCal
That transmission sounds like it's not bee very well maintained, and may be on its way out. But if it's still working, it probably can last a year.
Since you're removing the transmission, I would completely drain it and the torque converter, and fill with new fluid.
Since you're removing the transmission, I would completely drain it and the torque converter, and fill with new fluid.
Post Fiend
Joined: Apr 2005
Posts: 5,720
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From: Washington state
aussie, Howdy Partner
and welcome to the Aero Party
lot's of good ole Aero steel there
the "metal/sludge" you are seeing in the pan and magnet are normal for an auto tranny.....frictional wear during shifts on the clutch discs, clutch steels, bands and drums....part worn off steel and part worn off frictional material....similar to a manual tranny clutch/flywheel or brake pad/rotor wear.....
it's the cause and reason we change the ATF per manuf.'s recommended sched. in an auto tranny....gotta remove the old worn out contaminated saturated with wear particles goop.....
wipe out pan....add new ATF to full mark.....do a complete gentle change/flush with 8 more qts of ATF>search Aero forum for directions
add an inline plate/fin ATF cooler and and inline filter
wanta beef up the auto tranny in your Aero? put in a A4LD from a '94>'95 4.0L....has more plates/discs in clutch packs and heavier duty improved components
and welcome to the Aero Party
lot's of good ole Aero steel there
the "metal/sludge" you are seeing in the pan and magnet are normal for an auto tranny.....frictional wear during shifts on the clutch discs, clutch steels, bands and drums....part worn off steel and part worn off frictional material....similar to a manual tranny clutch/flywheel or brake pad/rotor wear.....
it's the cause and reason we change the ATF per manuf.'s recommended sched. in an auto tranny....gotta remove the old worn out contaminated saturated with wear particles goop.....
wipe out pan....add new ATF to full mark.....do a complete gentle change/flush with 8 more qts of ATF>search Aero forum for directions
add an inline plate/fin ATF cooler and and inline filter
wanta beef up the auto tranny in your Aero? put in a A4LD from a '94>'95 4.0L....has more plates/discs in clutch packs and heavier duty improved components
Last edited by 96_4wdr; Oct 4, 2006 at 04:32 AM.
Post Fiend
Joined: Oct 2005
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From: Kiev, Ukraine
AUSSiE! I will do tranny swap this weekend. Dont worry, it is not the operation of moon expedition level..... One minus, you'll be dirty....
BTW, fill the tranny correctly... check level on running engine before conducting a road test...
BTW, fill the tranny correctly... check level on running engine before conducting a road test...
Thread Starter
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just a quick thought... I did mention that the donor van has not been driven for a year, however i did not mention that the service for the trans was done right before it was parked - shouldn't the goop be very minimal? I don't know if the tranny shop cleaned out the pan or not but it is a little weird, or not? Just a thought...
AUSSiE
AUSSiE
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Joined: Aug 2005
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The goop was suspended in the tranny fluid. When the van was parked, all of the goop settled to the bottom. The goop is all throughout the tranny, lines, and cooler; that's why the "gentle" flush is recommended after you change filter/clean pan.
M
M
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perfect... I guess i'll just do it and see.
thanks all that replied.
Any hints on an easy extraction, I have the chiltons manual, but doesn't have lotsa pics. I'm more of a pic person, hehe
AUSSiE
thanks all that replied.
Any hints on an easy extraction, I have the chiltons manual, but doesn't have lotsa pics. I'm more of a pic person, hehe
AUSSiE
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Download the Ford CD from:
http://fordcds.com/
*Edit*
I just noticed that 1993 is the earliest year available.
M
http://fordcds.com/
*Edit*
I just noticed that 1993 is the earliest year available.
M
Last edited by Mormakil; Oct 4, 2006 at 08:30 PM.
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thanks mormakil.... my computer doesn't recognize the file from the link though.
tommorrow will be a busy day as I am working on this all by myself.
I think i'll bring some orange clean and lots of rags!
AUSSiE
tommorrow will be a busy day as I am working on this all by myself.
I think i'll bring some orange clean and lots of rags!
AUSSiE
Lead Driver
Joined: Sep 2003
Posts: 7,016
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From: SoCal
Aussie,
This is not a terribly difficult task in an Aerostar, since the top of the transmission can be accessed through the dog house openning from the inside. I dropped my transmission 3 times recently with the help of a transmission jack that Copper lent me. In my case, I wasn't changing the transmission, but moving it out of the way to do other things. So I just jacked the van up high enough to get access. It would not have been high enough to actually remove the transmission from under the van. Since you're going to remove one and bring in another, you need to figure out a way to safely pick up the van high enough off the floor for the transmission on the jack or a creeper to roll out.
It is odd that your newly serviced transmission has so much sludge. When I dropped the pan on mine at 50,000 miles, there was a very light layer of black deposit on the bottom. When I did it again at 130,000 miles, it was the same; a very light layer of black residue. I would definitely do a full gentle flush as described after you install and refill it.
This is not a terribly difficult task in an Aerostar, since the top of the transmission can be accessed through the dog house openning from the inside. I dropped my transmission 3 times recently with the help of a transmission jack that Copper lent me. In my case, I wasn't changing the transmission, but moving it out of the way to do other things. So I just jacked the van up high enough to get access. It would not have been high enough to actually remove the transmission from under the van. Since you're going to remove one and bring in another, you need to figure out a way to safely pick up the van high enough off the floor for the transmission on the jack or a creeper to roll out.
It is odd that your newly serviced transmission has so much sludge. When I dropped the pan on mine at 50,000 miles, there was a very light layer of black deposit on the bottom. When I did it again at 130,000 miles, it was the same; a very light layer of black residue. I would definitely do a full gentle flush as described after you install and refill it.