I changed the tranny fluid on my 2000 Town & Country today along with the filter. There were no leaks, and I put in a new gasket. The van still seems to be hesitating when going into drive or reverse. I usually have to accelerate the engine for the van to jump into gear. I did put in MOPAR AFT +4 fluid as that is the recommended brand for Chrysler.
Is there something else that may be causing my van to shift harshly into gear ?
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Re: Transmission still shifts erractically
Well if you have a lot of millage it could only be the gearpump in the transy thats finished,unfotuntly ...you cant really change -it without rebuilding the all transy
other than that you still can drive-it but try letting the gear go on by it self ,you could damage your van by doing that !! you mignt not have choice but if you do ...try not doing-it!
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It sounds like you are either low on transmission fluid, or you have a shift solenoid or TCC Solenoid that is failing. Check the transmission fluid level when the engine is warmed up. If the fluid is at the correct level, see if your check engine light is on. If the CEL light is on, you probably have a failed Solenoid Valve. Have the code checked to find out which solenoid is faulty.
Belts these days aren't as forgiving as the old V belts, when they go bad they glaze, slip, make noise etc. They may LQQk good but squeaking is first warning of belt going bad. I'd replace it for peace of mind.
Re: Trans - have you ever had trans fluid and filter changed? It's one of the most overlooked maintenance items of all time. It should be changed every 50k, 30k if you tow a trailer. The $50 you spend on a trans filter service will save you a $2000 transmission job.
Souns like the vehicle is in "limp mode". Needs to be taken to an agent. there is probably something wrong with the gearbox management system or as in my case a faulty solinoid inside the gearbox. If you try to drive too much it will just keep shutting down to prevent further damage
Check your ATF fluid level. Your MAP lets your TCM know when to shift which in turn tells your solenoid pack to get the fluids flowing in the proper channels. This shifts it down, etc. ...or something very similar to this chain of events. When your fluid level is low, there isn't enough to go through all the channels and you can get air in there- which compresses. This situation causes it to behave just as you described. The jargon aside, you are the proud owner of a very temperamental transmission. Congratulations you lucky guy!
The best thing you can do for your tranny is to keep the fluid clean and full. I would recommend dropping the oil pan of the transmission and then replacing the 4 quarts or so that came out with ATF-4. Do this yourself and it will be better in the long-run. Most shops will put the wrong type of fluid in your transmission and shorten the life of it as well as give you a rough tranny in the meantime.
If you have not performed any transmission service to this vehicle before, I would get a new transmission filter and pan gasket. Also get about 8 quarts of ATF-4 while you are at the parts store. These should all be in stock. You may only use 4 quarts now, but you will want to have some on hand for the next partial change.
This is just as easy as changing your oil- just make sure that nothing has dirt or old gasket material on it when you put it back together. Also, use a new funnel or one that is already designated for ATF when pouring in the new fluids.
If your old fluid is really dark red and burnt smelling, you will need to do the other 4 quarts in 1000 miles.
Make sure you use ATF-4. Your tranny originally came with ATF-3, but Chrysler dicontinued it. ATF-4 is fully synthetic and will work better. Be prepared to pay $4.50-5.50 per quart. The folks at the part store may try and sell you Dexron-III or some other additive nonsense, but don't go for it. Stick to ATF-4 and you won't have issues. The other stuff is thicker and gums up your temperamental tranny. It is not equivalent.
PS I am not a mechanic, but I have the same vehicle, have rebuilt my own A604 and also diagnosed and repaired the electrical side of it recently.
first you need to get a pair of safety glasses to protect eyes from cleaner. then you need 12.6 pts or 6.5 to 7 quarts of transmission fluid+ filter.you also need a drain pan to catch transmission fluid.you need a 3/8 ratchette and socket set.you need some paper towel and maybe1 or 2 cans of brake cleaner.now you want to safely raise and support car on jack stands.make sure you are on solid level ground.put drain pan under transmission to catch fluid.take ratchette wrench start removing tranny pan front and side bolts.loosen rear bolts one turn let the pan drain.when all tranny fluid drain out of pan. then remove pan clean it good with brake cleaner.remove all traces of old gasket. from pan then dry with paper towel..then you remove tranny filter.becareful not to damage anythingthen put in your new tranny filter then.wipe and carefully clean around gasket area on transmission with paper towel.make sure there is no traces of olds gasket material on tranny area where tranny pan gasket seals.now get new gasket align its with tranny pan holes.you might want to buy a gasket adhesive.just put on some to hold gasket in place when you install it to transmission.besure to clean all tranny pan bolts real good with brake cleaner. then dry them off real good.because some transmission you have to put a little rtv sealant on bolts.to keep them from leaking.now once you get bolt holesand gasket on transmission pan line up.all tranny pans bolts with a little rtv silicone on threads and on bolts head where they meet the pan.then you transmission pan in place.make sure gasket and bolt holes line up.when putting bolts in dont tighten them until you get them all in first.when all bolts are in.then you tighten criss cross dont over tighten them. torque them to 90 inch pounds .when all is done .starting putting tranny fluid in.and check for leaks.start the engine up let it idle for few minutes if you see no leaks lower car down to ground.then move transmission gear selector through each range and back to park.make sure tranny fluid level correct before driving car. WARNING IF YOUR CAR DONT HAVE THE TRANSMISSION DIP STICK.AND HAVE A FILL CAP INSTEAD THE DEALERSHIP HAS TO CHANGE FLUID.BECAUSE THEY HAVE TO RAISE CAR ON LIFT TO CHECK FLUID LEVEL.BECAUSE CAR HAS TO BE RAISE UP LEVEL THEN A DRIP PLUG IS MOVED TO CHECK TRANNY FLUID LEVEL.
Transmission is worn and previous owner has added transmission fluid additives like Lucas transmission oil to try to make it last longer. The fluid is burn and needs to be changed, best thing to do is to have the transmission fluid and filter changed and add some additives to the fluid and try not to drive it to hard.
It shift's hard when your driving at normal speeds because the fluid is thicker then it should and the transmission line pressure is higher due to the thicker fluid. At WOT the transmission slips so it seams smoother and that's why the fluid is burnt.
Good luck and hope this helps. Do not do a trany flush, the transmission is already worn out, but the dirty fluid will make it worst too.
If you havent already try to change the transmission filter.Sometimes when the filter gets dirty fluid pressure is comprimised and certain pumps and solenoids which control shifting inside the transmission function off of the fluid pressure,
they should have suggested changing tranny screen and filter if tranny isnt maintained every 20,000to 30,000 you end up with gray like particles from normal wear wich get caught in the screen and valve body wich leads to erractic shifting valve body problems eventually tranny replacement number 1 rule oil changes on motor and screen and filter on tranny prevents premature wear longer life to two major key factors