Can i swap a 99 voyager trans.

First, I'm not a Dodge Mechanic,
* I had a 2001 Caravan with the same problem.
* Sorry, but your transmission is bad. No way around this other than to change it. I was offered a rebuilt trans for a total of $2,300 (Hawaii). New ones runs $5K so I figured (2008) that the caravan was not going to last another 10 years (came with a 5 year warranty) I could live with only 5.
* I've found the caravan and similar mini vans all has trans problems.
* Find yourself a reliable trans shop and have it replaced.
* By the way. My nephew is driving the caravan as of 2018. Still good. (well the trans is. Ceiling cloth hangs, radiator was replaced 2016, Water pump 2017.......)
Aloha, ukeboy57

if you follow the pipe does it go towards the transmission ? if so it's for the trans cooler. If not it will be the escape hose incase of overheating/to much pressure in the coolant system , if you go to a parts retailer like autozone they will have the part named on their data system , its a bit difficult without seeing vehicle to name parts . although you have given a good description, the lower rad hose carries cooled coolant so i would think it's the trans cooler but check at autozone or similar

Buy an ATSG Transaxle Manual

They are avail on their web site or at
a local trans supply house where the local
shops go for parts

Have to check the unit model in each vehicle
The 1991 is an OBD1 & the 1997 is OBD2 --so
it won't work if it does match up mechanically
Do yourself a big favor & get rid of any chry van
I once owned a tran shop & 50% of my work was from
1990's caravans,bad unit,don't last

REBUILD TRANS, NEW TORQUE CONVERTER

check the cooling fan relay. this was acommon problem w/ these mini vans, town & country, voyage, all Diamond products that uses that relay.

80 percent of the time the transmission problem is electrical. Pull the transmission dip stick and check the condition of the transmission fluid. If it's not burn and the transmission runs with out slipping but does not shift properly. Good chances are that it may be the Transmission control module (TCM) which is on the passenger side fender close to the headlight. Check the condition of the wire harness to the TCM, look for corrosion and try disconnection the TCM and see if there is any changes to the way the transmission performs. As for the transmission fitting, as long as the engine size are the same. the 3 liter and 3.3 liter use different transmission. Good luck and hope this helps.

a good start would b have the van scanned that should point u in the right direction hope this helps

Although the transmission may be siilar, the engine and supporting wiring harness, and control modules are not. This can be done, anything can, but it is probably more trouble than it's worth for a mini van. If this was a classic car then sure.

With the difference in years, there maybe a difference in alot of things. I'd start with mking sure every sensor, injector, everything links up properly to the 99 caravan pcm. If it's seeing the wrong info it will be a no go. Sounds like it's thinking it's -40 outside(foot to the floor to start) this indicates the coolant temp sensor maybe screwy. Let me know what you find, and about any other changes or issues.