It specifically discusses flushing?
I have not seen any car manufacturer yet who recommends a flush procedure in writing!
I have not seen any car manufacturer yet who recommends a flush procedure in writing!
flushing transmission
- Thread starter johnnyrandal
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I drop the pan, clean it, replace the filter, refill. Drive, take the Miti-Vac and extract as much as ATF as possible, measure it and refill. Then take another short drive. I do that until I've gone through 1.5 times the total transmission fluid capacity. I'd rather not drop a line on an older car. JMO YMMV
Extracting the fluid before dropping the pan is a big help!
Extracting the fluid before dropping the pan is a big help!
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Not flushing in the sense of the use of solvents or synthetic chemicals but flushing in the sense of replacing all the fluid yes. Hyundai's manual is available online so I'll post that one:
If you have a fluid changer, use this changer to replace the fluid. If you do not, replace it using the following procedure.
1. Disconnect the hose which connects the transmission and the oil cooler which is within the radiator only in 2.4L engine(3.3L-the oil cooler is separated).
2. Start the engine and let the fluid drain out.
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Running conditions : "N" range with engine idling.
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The engine should be stopped within one minute after it is started. If the fluid has all drained out before then, the engine should be stopped at that point.
3. Romove the drain plug(A) from the bottom of the transmission case to drain the fluid.
4. Install the drain plug via the gasket, and tighten it to the specified torque.
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TORQUE :
40 ~ 50Nm (400 ~ 500 kgf.cm, 29 ~ 36 lbf.ft)
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5. Pour the new fluid in through the oil filler tube.
Stop pouring if the full volume of fluid cannot be poured in.
6. Repeat the procedure in step (2).
Check the old fluid for contamination. If it has been contaminated, repeat the steps (5) and (6).
7. Pour the new fluid in through the oil filler tube.
8. Reconnect the hose which was disconnected in step (1) above and firmly replace the oil level gauge.(In case of this "replace", this means after wiping off any dirt around the oil level gauge, insert it into the filler tube.)
9. Start the engine and run it at idle for 1~2 minutes.
10. Move the select lever through all positions, and then move it to the "N" position.
11. Drive the vehicle until the fluid temperature rises to the normal temperature (70~80°C), and then check the fluid level again. The fluid level must be at the HOT mark.
12. Firmly insert the oil level gauge(A) into the oil filler tube.
If you have a fluid changer, use this changer to replace the fluid. If you do not, replace it using the following procedure.
1. Disconnect the hose which connects the transmission and the oil cooler which is within the radiator only in 2.4L engine(3.3L-the oil cooler is separated).
2. Start the engine and let the fluid drain out.
--------------------------------------------------------------------------------
Running conditions : "N" range with engine idling.
--------------------------------------------------------------------------------
The engine should be stopped within one minute after it is started. If the fluid has all drained out before then, the engine should be stopped at that point.
3. Romove the drain plug(A) from the bottom of the transmission case to drain the fluid.
4. Install the drain plug via the gasket, and tighten it to the specified torque.
--------------------------------------------------------------------------------
TORQUE :
40 ~ 50Nm (400 ~ 500 kgf.cm, 29 ~ 36 lbf.ft)
--------------------------------------------------------------------------------
5. Pour the new fluid in through the oil filler tube.
Stop pouring if the full volume of fluid cannot be poured in.
6. Repeat the procedure in step (2).
Check the old fluid for contamination. If it has been contaminated, repeat the steps (5) and (6).
7. Pour the new fluid in through the oil filler tube.
8. Reconnect the hose which was disconnected in step (1) above and firmly replace the oil level gauge.(In case of this "replace", this means after wiping off any dirt around the oil level gauge, insert it into the filler tube.)
9. Start the engine and run it at idle for 1~2 minutes.
10. Move the select lever through all positions, and then move it to the "N" position.
11. Drive the vehicle until the fluid temperature rises to the normal temperature (70~80°C), and then check the fluid level again. The fluid level must be at the HOT mark.
12. Firmly insert the oil level gauge(A) into the oil filler tube.
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