We own a '99 T&C minivan with 80K miles and I've changed the fluid and
filter twice at about 30K mile intervals.  Other than a speed sensor which
cost around $25 for the part and 15 minutes to replace, the performance of
this transmission has been flawless and it still shifts like new.

This contrasts to our '90 minivan which had the first iteration of the
electronic 4-speed transmission which literally self destructed itself at
48K miles and 6 years of age, despite regular preventive maintenance.
Although not as durable as the older, larger, and heavier  rear drive units,
they have improved the reliability considerably over the years.  That said,
maintenance is still critical to extend the life span.  Also, do not buy a
used van that was used to tow anything at all, but having the towing package
for the trans cooler is a plus.

Bob

We used to own a 1994 Grand Caravan. The tranny went at about 130,000
Kms. We had it rebuild by a shop that had done some work for the
previous owner. They screwed it up. We had a 20,000 km, 1 year
warranty. At 51 weeks, and 19500 km, it blew AGAIN.

They begrudginly rebuilt it a second time, only THIS TIME they kept
the van for 3 weeks! I was pissed, but I insisted that they "get it
right" this time. So they insisted on completely stripping it down to
discover why the rebuild failed. Then there was a problem with this
location of the local chain changing owners.... Eventually they sent
the trans to the "head office" location where it was stripped down,
diagnosed, and rebuilt.

After that the trans worked very well for about 40,000 kms. At this
point the solenoid pack failed and it went into limp mode. But the
repair was not very expensive, and I was on the road in about a day.
After the new solenoid pack, the trans shifted like spanking new!

Unfortunately, before 190,000 kms, the van was "totalled" by another
driver who blew a stop sign.

We now own a 2002 Grand Caravan. The only thing we had to do with the
trans was replace the solenoid pack. We purchased this van with about
93,000 kms on it, and the solenoid pack was literally PUKING oil all
over the engine compartment. We thought it was the head gasket
leaking, but no! it was the solenoid pack!

Again, after the solemoid pack was replaced (warranty!) the trans
shifts like spanking new - smooth as silk.

My research prior to purchasing the 2002 indicated that after about
2000 model year, the trans problems have - by-and-large - been
corrected.

Where I live, the cost of rebuilding the transmission (about $1500
CDN$ plus tax) is often prohibative for the value of the older vans.
Older vans (1990's) seem to be valued between $500 and $5000 depending
upon mileage and body condition. If the owner of an older van cannot
produce the reciept for a rebuild and the requisite preventive
maintenance on the transmission from a reuptable dealer - then walk
away.

These older vans usually have LOTS of stuff that goes wrong with them,
and it takes $$$$ to fix.

Over the years that I had my 1994, I put just over $10,000 in
mantenance into it. It was in near perfect condition, and when it was
written off bby the insurance company the $10,000 in maintnance
translated into an additional $600 in value. They gave me $3500 for
it. Without my receipts, the offer would have been $2900.

So if you are buying an older van, a mechanical inspection is a MUST
so you know what you are getting into. And, if the trans has not been
rebuilt, this should be reflected in the selling price.

For the 2001 model year and up, the trans should be OK as long as no
towing has been done, and mileage is low. But be aware that these vans
depreciate very quickly. If you buy a van with more than 80,000 kms on
it, and a warranty is offered - TAKE IT!

My warrant cost me $2000 extra, and was for an additional 2 years and
40,000 kms. The van is in the shop (again) this weekend. So far the
dealership is into the van for about $3500 in repairs. I have a $100
deductable per invoice, so I have paid about $400! :) :) and I have
only had the van for about 6 months. :)

hth