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GET NEW GASKET AND FILTER FOR TRANNY ALONG WITH THE FLUID (BEFORE YOU BEGINE)
GET A LARGE FLAT DRAIN PAN.
PUT CAR UP ON 4 JACK STANDS.
place drain pan under tranny pan.
undo tranny pan screws - allow one corner to hang lower than the other corner (to allow fluid to drain) slowly remove them all.
Its messy! empty tranny pan into drain pan. set tranny pan to the side. undo the filter clamp, carefully remove the filter - set into the drain pan, remove the gasket around the tranny body/tranny pan.
Clean tranny block surface with clean cloth. install new filter, install clamp tightly. Clean tranny pan, place gasket onto pan and then reinstall tranny pan. (this only change the fluid in the tranny body and pan) If you wan the fluid out of the torque convertor you have pull the pan under the torque convertor and turn the convertor so you can get at the drain plug. Allow fluid to drain into drain pan. Reinstall drain plug and pan. (you will need a lot of fluid) Check manual for qty. Place car back on to ground/floor. Refill tranny through filler tube. Do not start the engine until oil is at full mark, and when you do start it do not all it to run for than 4 minutes - stop and add more fluid and check full mark again (repeat until no longer sinks below full mark. gently test drive around you block -- come back and check level while engine running. Top up if needed.
Siphon out excess above full mark. Test drive around 3 block,
come back check full mark. Because the torque convertor was emptied it can take a while to get all the air out it.
Raise the car with a jack and support the vehicle with jack stands sufficiently rated to safely support the weight of the vehicle.
Place a large drip pan under the transmission.
Remove the transmission fluid drain bolt with a wrench. The drain bolt is located at the bottom of the transmission facing the pan. The pan is the large flat plate that covers the very bottom of the transmission.
Drain the transmission fluid into the drip pan.
Reinstall the transmission fluid drain bolt with the same wrench used to remove the bolt.
Lower the vehicle to the ground after removing the jack stands.
Open the hood and remove the transmission dipstick from the filler tube by pulling the dipstick. The end of the dipstick will be curved into a circle to allow a finger to slide into the circle to withdraw the dipstick.
Place a funnel into the dipstick tube and fill the transmission with new fluid by pouring the fluid into the dipstick tube.
Remove the funnel and check the fluid level with the dipstick until the fluid reaches the "Full" mark on the tip of the dipstick.
Start and allow the engine to run for a few minutes.
Move the transmission gear selector through all of the gears while depressing the brake pedal.
Turn the engine off and check the fluid level on the dipstick. Add transmission fluid if necessary.
The pan needs to be removed to change the filter. Use a large pan to catch the oil and remove the pan bolts slowly or you will have a big mess. After you have replaced the filter, Clean and reinstall the pan using a new gasket. This should stop the leak if the old gasket was bad. Dont over tighten the bolts. Measure the oil drained and install the same amount of new fluid through the trans dip stick. Start the engine and shift through all the gears with brake on. Check fluid and add if necessary. Not a bad job, just a little messy..
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.
Raise and safely support the vehicle on jackstands.
Place a drain pan under the transmission.
Loosen the pan attaching bolts and drain the fluid from the transmission.
Always place used fluids and oils into a sealed storage container and take to an approved recycling collection facility. Never dump used fluids or oils on the ground or in a trash receptacle. Contamination to the environment can and will occur.
When the fluid has drained to the level of the pan flange, remove the remaining pan bolts working from the rear and both sides of the pan to allow it to drop and drain slowly.
Some AOD transmissions will have a plastic plunger type plug floating loosely in the pan when draining the fluid. It is of no importance and was used in the assembly process of the transmission. Discard it before reinstallation of pan.
When all of the fluid has drained, remove the pan and clean it thoroughly. discard the pan gasket. If equipped, remove the pan magnet.
Fig. Fig. 1: Unfasten the remaining bolts, then remove the transmission fluid pan from the vehicle
Fig. Fig. 2: On some vehicles, such as this 1995, you must remove and clean the pan magnet To install:
Place a new gasket on the pan, then install the pan on the transmission. If equipped, don't forget to install the pan magnet. Tighten the pan attaching bolts as follows:
C3 and C5 Transmissions: 12-16 ft. lbs. (16-22 Nm)A4LD Transmissions: 8-10 ft. lbs. (11-13.5 Nm)AOD Transmissions: 71-119 inch lbs. (8-13 Nm)4R70W Transmissions: 9-11 ft. lbs. (12-15 Nm)
Add the correct type and quantity of fluid to the transmission through the filler tube.
Lower the vehicle. Start the engine and move the gear selector through shift pattern. Allow the engine to reach normal operating temperature.
Check the transmission fluid. Add fluid, if necessary, to maintain correct level.
See Figure 3
Remove the transmission oil pan and drain the fluid. For details, please refer to the procedure located earlier in this section.
Remove the screen and the filter from the valve body. Most screens are retained using a fastener; through some may use an interference fit between the screen tube and valve body.
Fig. Fig. 3: After the pan is removed, you can remove the transmission fluid filter To install:
Install a new filter using a new gasket or O-ring.
If the transmission uses a filter equipped with a fully exposed screen, it may be cleaned and reused.
Install the transmission oil pan and properly refill the transmission.
Fluid & Filter Change
Under normal service (moderate highway driving excluding excessive hot or cold conditions), the manufacturer feels that automatic transmission fluid should not need periodic changing. However, if a major service is performed to the transmission, if transmission fluid becomes burnt or discolored through severe usage or if the vehicle is subjected to constant stop-and-go driving in hot weather, trailer towing, long periods of highway use at high speeds, fluid should be changed to prevent transmission damage. A preventive maintenance change is therefore recommended for most vehicles at least every 90,000 miles (145,000 km). Although not a required service, transmission fluid changing can help assure a trouble-free transmission. Likewise, changing the transmission filter at this time is also added insurance.
Raise the car and support it securely on jackstands.
The torque converters on some transmissions are equipped with drain plugs. Because it may take some time to drain the fluid from the converter, you may wish to follow that procedure at this time, then come back to the pan and filter removal.
Before removing the transmission fluid pan, insure that the area is clean of dirt and debris
2. Place a large drain pan under the transmission.
Loosen all of the pan attaching bolts to within a few turns of complete removal
Loosen all of the pan attaching bolts to within a few turns of complete removal, then carefully break the gasket seal allowing most of the fluid to drain over the edge of the pan.
DO NOT force the pan while breaking the gasket seal. DO NOT allow the pan flange to become bent or otherwise damaged.
When fluid has drained to the level of the pan flange, remove the pan bolts and carefully lower the pan doing your best to drain the rest of the fluid into the drain pan.
Once the pan is removed, discard the old gasket and insure that the mating surfaces are clean
Inspect this magnet inside of the pan for any large pieces of debris. A light gray coating is normal
Clean the pan thoroughly with a safe solvent and allow it to air dry
5. Clean the transmission oil pan thoroughly using a safe solvent, then allow it to air dry. DO NOT use a cloth to dry the pan which might leave behind bits of lint. Discard the old pan gasket.
The transmission filter is secured by a mounting bolt (arrow). Some models may use two bolts
Remove the filter mounting bolt ...
... then pull the filter free from the transmission
6. If necessary, remove the Automatic Transmission Fluid (ATF) filter mounting bolts, then remove the filter by pulling it down and off of the valve body. Make sure any gaskets or seals are removed with the old filter. The transmission usually has one round seal and a rectangular gasket.
7. Install the new oil filter screen making sure all gaskets or seals are in place, then secure using the retaining screws, if applicable.
Install a new pan gasket
8. Place a new gasket on the fluid pan, then install the pan to the transmission. Tighten the attaching bolts to 71-119 inch lbs. (8-13 Nm).
Fill the transmission with the proper amount of ATF
9. Add three quarts (six quarts if the torque converter was drained) of fluid to the transmission through the filler tube.
10. Remove the jackstands and carefully lower the vehicle.
11. Start the engine and move the gear selector through all gears in the shift pattern. Allow the engine to reach normal operating temperature.
12. Check the transmission fluid level. Add fluid, as necessary, to obtain the correct level.
Check fluid level every 12 months or 7500 miles, whichever comes first. Transmission fluid and filter should be changed every 100,000 miles. On THM 250C transmissions, intermediate (front) band requires adjustment every 60,000 miles, or as required.
1. With vehicle on level surface, apply parking brake and let engine run at curb idle. Move selector lever through all ranges, ending in "PARK".
Remove dipstick and wipe clean, reinstall, then remove again and check fluid level mark on dipstick. Fluid level should check between "ADD 1 PT." and "FULL HOT" marks on dipstick.
Use only Dexron II or equivalent automatic transmission fluid.
CAUTION:If vehicle has been operated for an extended period of time at high speed, or in city traffic in hot weather, or if vehicle has been pulling a trailer, an accurate fluid level cannot be determined until fluid has cooled down (approximately 30 minutes after vehicle has been parked). So let's get started...1. With vehicle raised and drain pan placed under transmission, remove front and side transmission oil pan bolts. Loosen rear pan bolts approximately 4 turns each. 2. Carefully pry pan loose with screwdriver, allowing fluid to drain. Remove remaining bolts and oil pan with gasket. Remove screen/filter-to-valve body bolts and remove screen/filter with gasket. 3. Thoroughly clean pan and screen with solvent and dry with compressed air. Paper type filters should be replaced. Install new gasket or "O" rings, lubricated with clean oil, into screen/filter assembly. 4. Install screen/filter assembly to transmission. Use new pan gasket and install pan. Add proper amount of fluid to transmission through filler tube. 5. Start engine with shift selector lever in "PARK" position and with parking brake set. Check fluid level and add as required. CAUTION: DO NOT overfill. Best of luck :)
Jack you vehicle up and put it on jackstands. Loosen the dipstick tube collar and let the fluid drain into a container. Next take the transmission pan bolts out and remove the pan from the transmission making sure you don't spill the remaining fluid. Next clean the gasket surfaces on the transmission and pan very carefully removing all residue and glue with a solvent and then air dry. Be sure to clean the bottom of the pan thoroughly. Remove the filter from the mount inside the transmission. Now you are ready to install the O-ring and a new filter tightening the bolts securely. Next install the gasket and the pan to the transmission and be sure to torque the bolts with a torque wrench to specifications. Install the dipstick tube and tighten the collar. Lower the vehicle and add the fluid through the filler tube, don't overfill please. Now with the transmission in park and the parking brake set, run the engine at fast idle, but not too fast. Move the gear selector through each range and back to park. Check the fluid level and check for leaks. Now You Are Finished and Ready to Go.