I went to a transmission place for a basic service, filter and pan gasket, it was leaking a bit around the pan. About a month later I noticed AT fluid again dripping from the car. I checked the fluid level to be sure that it hadn't gotten too low, and discovered it was way overfilled, like above the Hot Marks when it was essentially cold. I took it back to them and of course they wanted to replace something else, and told me that the overfilling couldn't have created the additional issue, because my transmission has a vent on it that allows excess fluid to be purged without blowing out any of the seals.
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Re: Does a 2003 Kia Spectra have a Transmission Vent?
Dont let them lie to you an over filled trans will cause lots of problems because the fluid gets so high the clutchs foam up the fluid or airate its up in a way that it will loose its hydralic propertys and begins to compress instead of resisting.when the fluid gets like this the tranny will become slower and slower untill it burns up.
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place large masonry mixing tray[home depot]under transmission pan to catch fluid. remove 19 bolts on transmission pan.pull off filter.make sure o-ring gasket is removed if it is not on old filter.push in new filter.clean old gasket off pan.install new gasket and pan. refill transmission fluid.check pan for leaks.
most cars dont have a transmission plug. the pan must be droppedand the filter accessed from inside the pan. be sure to check the magnet inside(if Applicable) for metal shavings. and then replace the gasket. make sure you torque the bolts down right, overtightening can cause a leak. all of this applies to an automatic transmission
TO DO A TRANSMISSION FLUID CHANGE YOU NEED HAVE TRANSMISSION FLUID ON HAND YOU NEED TRANSMISSION FILTER AND GASKET.YOU NEED 3/8 WRENCH THE RATCHET TYPE WITH METRIC SOCKETS. YOU NEED JACK TO RAISE VECHICLE SUPPORT VECHICLE ON JACK STANDS.YOU NEED A DRAIN PAN. ONCE YOU GET VECHICLE OFF GROUND.PLACE DRAIN PAN UNDER TRANSMISSION OIL PAN REMOVE OIL PAN DRAIN BOLT.LET FLUID DRAIN OUT IN DRAIN PAN THEN SCREW DRAIN PLUG BACK IN PLACE DONT OVER TIGHTEN.REMOVE OIL PAN AND GASKET. BESURE TO HAVE PAPER TOWEL ON HAND.MAKE SURE TRANSMISSION OIL PAN GASKET SURFACE CLEAN BEFORE INSTALLING NEW PAN GASKET. ONCE TRANSMISSION OIL PAN REMOVED. REMOVE THE OLD TRANSMISSION FILTER INSTALL THE NEW FILTER.THEN WITH NEW GASKET ON OIL PAN IN PLACE.OIL PAN NEED TO BE CLEAN SO THE GASKET ADHESIVE WILL HOLD PAN GASKET IN PLACE WHILE INSTALLING PAN AND GASKET TO TRANSMISSION.INSTALL OIL PAN BOLTS INSTALL THEM CRISS CROSS TORQUE PAN BOLTS TO 7 TO 10 FT LBS. LOOK IN OWNERS MANUAL FOR TRANSMISSION FLUID CAPACITY.BUY 10 QUARTS .TO BE ON SAFE SIDE SO YOU WILL HAVE ENOUGH FLUID ON HAND. IF YOU DONT HAVE NO TRANSMISSION FLUID CAPACITY. ADD 7.5 QUARTS FLUID.WAIT FOR 2 MINUTES.CHECK TRANSMISSION FLUID LEVEL ON DIP STICK. SHOULD BE ON THE FULL MARK.CRANK VECHICLE UP.LET IDLE FEW MINUTES CHECK TRANSMISSION DIP FLUID LEVEL IF DROPPED ADD LITTLE MORE.WHILE ENGINE IDLING GETTING WARM UP. KEEP EYE ON FLUID LEVEL.WHEN FLUID LEVEL STOP DROPPING. APPLY BRAKES HOLD FOOT ON BRAKES SHIFT THROUGH ALL GEARS TWO TIMES. THEN CHECK FLUID LEVEL SHOULD BE ON FULL MARK.CHECK FOR LEAKS WHILE ENGINE RUNNING.
the fluid is drained by removing the transmission pan located under the car. make sure you buy a transmission filter kit so you can change the filter and gasket. the trans fluid is added to the dipstick tube, where you have located the dipstick.
There is a gasket supplied when you buy the transmission filter for all transmissions that your vehicle would have came with. You don't want to be using that stuff on a transmission pan, as a replacement for a gasket. I would wonder if the filter was changed?
pan bolt torque is in inch pounds (not a lot, around 10-15) generally
it's not necessary for exact because pans are a bit warped many times
and exact dosen't work anyhow. Tighten snugly without leaning into the
wrench, then check running and tighten anywhere that is seeping.
if it's dry after a week of running it's fine.It's important not to
crush the gasket. If you have one with a two piece dipstick tube
sometimes if the vent is a bit blocked the fluid can get out at the
connection between the two halves. I don't know if anything is
available to join them together better but I use a piece of hose over
them to keep water out off-road. Make sure the vent is clear. If it's
leaking, the only way to find the leak is to look carefully at
everything, clean off areas where there is too much gunk to see well.
pretty much the only place at the front that there is a seal is in the
pump and around the pump. it would leak down inside the bellhousing and
drip out onto the front of the pan rail after being blown back while
driving. Both seals are not accessible unless the unit is removed.
if the oil pan is aluminum , replace it. Have had one welded before with poor results. Don't buy a new one cause they are expensive. Find one at an autowrecker. Make sure you have a new gasket before you start , and seeing as you will have to drain the oil, have a new oil filter and oil handy too. I always smear a bit of gasket sealant all over the new gasket , it makes a better seal , and helps hold the gasket in place so you can line up the bolt holes.