ATF Change - LJ70
- Thread starter kash
- Start date
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I wrote this a while back:
I've done this job many times and it is pretty straight forward. I tow a heavy camper every summer which is why I do this regularly. Here is how I do it:
- Buy 15-20l of new ATF. (DEX III or whatever your transmission calls for) This is stuff I've had really good luck with:http://www.walmart.ca/en/ip/maxlife-high-mileage-dexmerc-atf-multi-vehicle/6000078877210
- Get a couple 10l pails to drain the old fluid into.
- Remove the shield that is under the radiator. It has three bolts and flexible clamps that hold the transmission hose.
- Make sure the engine is warm, and it does help to have a second person around for this job.
- Disconnect the 'outlet' hose (from the transmission) at the trans cooler (bottom of radiator) and put it into a large bucket.
- Drain the trans fluid from the transmission pan, put the plug back in, and fill it back up with as much ATF (new) as you took out. Take note of how much this is.
- Have someone stand by the bucket to watch the fluid come out of the hose and make sure the hose stays in the bucket. Start the motor (shifter in park) and let the old fluid pump into the bucket. Only let it run for a few seconds, as you don't want it to pump the pan dry. Old fluid will be getting pumped out of the passages in the transmission as well as out of the torque converter. Only let half the amount you drained from the pan get pumped out. Shut the motor off.
- Top up the ATF level in the pan again with fresh ATF (add the same amount you pumped out)
- Start the engine again, and let it pump old fluid out again.
- Keep doing this until clean fluid comes out, about 15 litres in total. While doing this job, have your foot on the brake, and shift the trans through a different gear each time you start the motor. This will pump the old fluid out of the various areas of the transmission.
I'm sure others have written better procedures, but this is the general idea. If you are not sure which hose is the 'outlet' from the trans, just put both hoses in a bucket and you'll see the first time you start it which is which.
Don't just change the ATF in the pan, as that is less than 1/3 of whats in there! No point mixing fresh ATF with the old stuff.
This is a great procedure that has worked for me with every Auto trans vehicle I've ever owned. Saves money paying a shop to do it. And I know it's done right too.
I've done this job many times and it is pretty straight forward. I tow a heavy camper every summer which is why I do this regularly. Here is how I do it:
- Buy 15-20l of new ATF. (DEX III or whatever your transmission calls for) This is stuff I've had really good luck with:http://www.walmart.ca/en/ip/maxlife-high-mileage-dexmerc-atf-multi-vehicle/6000078877210
- Get a couple 10l pails to drain the old fluid into.
- Remove the shield that is under the radiator. It has three bolts and flexible clamps that hold the transmission hose.
- Make sure the engine is warm, and it does help to have a second person around for this job.
- Disconnect the 'outlet' hose (from the transmission) at the trans cooler (bottom of radiator) and put it into a large bucket.
- Drain the trans fluid from the transmission pan, put the plug back in, and fill it back up with as much ATF (new) as you took out. Take note of how much this is.
- Have someone stand by the bucket to watch the fluid come out of the hose and make sure the hose stays in the bucket. Start the motor (shifter in park) and let the old fluid pump into the bucket. Only let it run for a few seconds, as you don't want it to pump the pan dry. Old fluid will be getting pumped out of the passages in the transmission as well as out of the torque converter. Only let half the amount you drained from the pan get pumped out. Shut the motor off.
- Top up the ATF level in the pan again with fresh ATF (add the same amount you pumped out)
- Start the engine again, and let it pump old fluid out again.
- Keep doing this until clean fluid comes out, about 15 litres in total. While doing this job, have your foot on the brake, and shift the trans through a different gear each time you start the motor. This will pump the old fluid out of the various areas of the transmission.
I'm sure others have written better procedures, but this is the general idea. If you are not sure which hose is the 'outlet' from the trans, just put both hoses in a bucket and you'll see the first time you start it which is which.
Don't just change the ATF in the pan, as that is less than 1/3 of whats in there! No point mixing fresh ATF with the old stuff.
This is a great procedure that has worked for me with every Auto trans vehicle I've ever owned. Saves money paying a shop to do it. And I know it's done right too.