These transmissions have faulty accumulator piston seals on the transmissions. Get it in and have the dealer fix it before you run the tans low on fluid. These transmissions are very difficult to fill with fluid. My dealer charged me $125.00 for the repair.
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Place a piece of white paper/cardboard on the ground below where the leak is coming from soon after the engine is turned off. This should help you locate where exactly the oil is dripping from, and should help identify what is leaking. If the oil is black/brown/gold, it's probably engine oil. If it's reddish/brown, it's probably transmission fluid. If it's clear, it may be brake fluid or power steering fluid (from the rack/pinion). Check the fluid levels for whatever you determine it may be. If it's engine oil, you may have leaking valve cover gaskets or a leaking rear seal on the engine. If it's transmission fluid, you may have bad transmission cooler lines or leaking from axle seals. Check the master cylinder and brake lines if it's brake fluid, and check the rack/pinion if it's power steering fluid.
dougnuts are never a good thing. the front seal on transmission could be leaking,if so the fluid will be red.it will drip down between the engine and transmission. if so, the transmission will need to come out fo r a replacement of front transmission seal. if it's clear fluid,it may be a bad steering rack. if it's black oil, it could be a bad rear main engine seal. if bad rear main seal,that transmission will need to come out for replacement of rear main engine seal.a abd rear main engine seal will also leak down between the engine and transmission and be black oil. check for color of the fluid leaking to give you a starting point to diagnose what to look for. thank you for choosing fixya.com
coming from the tail pipe?if so replace the transmission modulator valve, it's located on teh side of your transmission, BUT before you do that, make sure the vacum line to the modulator valve is'nt clogged!!sorry,that just occured to me. is the transmission leaking red fluid in front or the rear of it at all? that could be a bad seal if from front or rear.transmission i know front wheel drives, if leaking one side to other side, bad axle seal, depending on which side, if leaking in middle,between motor and transmission,bad front seal.,my firm advice,check all vacum lines leading to transmission.hope this helps and thank you for choosing fixya.com
If your having to add transmission fluid and not coolant, then the water pump is ok, fill with transmission fluid look under truck, if fluid is coming out of between engine and transmission housing, then bad front transmission seal.
TRANSMISSION LEAKS COME FROM TRANSMISSION OIL PAN GASKET LEAKING.OIL COOLERS LINES LEAKING.LEAKING AT TORQUE CONVERTER FRONT SEAL.TRANSMISSION SPEED SENSOR SEAL LEAKING.FRONT AXLE SEALS LEAKING AND LEAKING AT TRANSMISSION COOLING LINES TO RADIATOR.CHECK ALL YOU WILL FIND LEAK.IF YOU HAVE FAST LEAK OR PRESSURE LEAK.WITH CAR RUNNING IN PARK EMERGENCY BRAKE APPLIED LOOK UNDER CAR IF YOU SEE FLUID LEAKING OUT IN LARGE QUANITIES.COOLER LINES LEAKING OR TORQUE CONVERTER FRONT SEAL LEAKING.IF YOU HAVE SLOW LEAK THE LEAKS HAS TO BE AXLES SEALS OR PAN GASKET LEAKING OR VSS SENSOR SEAL LEAKING.
Depending on the location of the leak from under the van. With the van setting on level ground have someone to fill the transmission with fluid( do not overfill) look under van to see if the fluid is coming from the front or rear or middle of transmission. If you cannot look under the van then use a large piece of cardboard and slide it under the van before you try to fill it to locate the leak. leak could be front or rear seals leaking or the pan gasket leaking. hope this will help you.
your output seal on the tranny or input seal on your transfer case is bad. you have to pull your transfer case to tell. this is a pretty straight forward job. block wheels. put transfer case in neutral. drop front and rear drive lines.diconnect transfer case shift linkage. there is a short commponent connecting the trans to the transfer case. the bolt on either end face each other. remove the bolts to the transmission. the transfer case is heavier than it looks, i suggest getting help. pull back on the transfer case until it will drop down. it will pull out a bit because of the trans output shaft. replace what will probibly turn out to be the tranny output shaft seal and reassemble in reverse order.
The Borg Warner T-5 manual transmission has no filter. Assuming the leak is not really the rear main seal of the engine leaking, which is more likely, then it leaking from the front of the transmission. You will need to drop the transmission to get to the front seal on the first motion shaft. Unless you are really mechanically inclined or have a friend who is, leave it to a good shop.