2001 mercury Cougar is in park; tried several times to move it out of gear and no luck. Tranny fluid full. A few months ago had tranny fluid pan gasket replaced. Has been driving fine up til today.

Transmission fluid, if it poured out you have a hole in the pan or something. The trans is severely damaged

check the fluid condition/ex. full level/rose pink/red color is good if it's brown it's burning this could be from slipping/ improper cooling from hot running engine(the tranny lines go through the radiator)broken vacuum line/pressure loss dirty electrical connectors/blown switches inside the tranny/or the tranny is completely shot==this all depends on what you find if your engine has been running rough for a while your loosing vacuum inches and proper voltage and this will contribute to ruining a transmission in a short time also high heat /hot running engine == old transmission===I'm fried out === junk yard transmission=$$and a lot of work / rebuilt transmission===$$$$$ and other repairs as needed to not burn the new one out in 6 months or less good luck

NEED TO SCANN TH CAR

Well your clunking noise is most likely the u-joints the leaking pan is the tranny pan what you would have to do is get a tranny kit and change the pan gasket tranny filter and fluid or take to a shop and have a tranny service done.

Being that after you changed the fluid and filter out and the shifting got easier but you lost a gear that tells me that something is coming apart in your tranny. Transmission fluid is highly detergent so if you put new fluid in a allready failling tranny most of the time the new fluid will wipe the tranny out the rest of the way. If that truck still has the 700R4 or 4L60 tranny you can try turning the car off, with the tranny in park, stomp on the accelerator peddle several times and hopefully that will free up a possible sticking throttle pressure valve. You can also try replacing the lock-up solinoid inside of the pan but that most likely isn't the issue.

To make this as simple as possible, the trans lines go from trans to radiator back to trans. The question is where is puddle? If near radiator, then radiator must be going bad or you have a crack in radiator where trans fluid circulates. If in front of trans then front seal in trans is bad, if in middle then pan gasket bad, if in rear the rear seal bad. Hope this helps.

the is a drain plug on bottom of tranny. Remove all tranny fluid. Then remove bolts on the tranny pan, remove pan. Remove couple filter bolts and change filter. Replace new gasket and tranny pan. Fill up tranny with 8 quarts or whatever your user manual says with correct fluid.

first you need to buy transmission fluid new filter and new gasket.you need 11.4 pints of transmision fluid.raise front of vechicle.set parking brake.block both back wheels.besure support vechicle weight with jack stands. get a drain pan.if your transmission pan dont have a drain plug.loosen rear pan bolts a few turns.remove the front and side transmission pan bolts. let fluid drain.remove tranny pan. then clean old gasket material from transmission and pan carefully.dont scratch or damage surface.clean old tranny bolts using brake cleaner or buy new tranny bolts.you have to put a tiny film of rtv silicone on tranny bolts so they wont leak.carefully remove old tranny filter and put on new filter.clean all grease grim away from tranny pan it should be **** and span because.you might need a little gasket adhesive to hold gasket in place while putting pan back on transmission.to line up bolt holes.loosely put all bolts in you have to move pan a little to get holes line up.when all is finish put tranny fluid back in.besure you put 11.4 pints back in that about 6.5 quarts. make sure tranny fluid level is right before driving vechicle.l

in 2003 there shouldn't be a tranny dipstick? there is a fill plug on the front behind the metal shield(bolted to transmission).it should take just under 3L. OF VW TRANNY FLUID

yes they do but as much as your gonna hate to hear this, it cant be reched unless the tranny is pulled and split down the middle..... if its time for a filter its time for a tranny... thats ford for ya