Will this method drain torque converter also

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Old 01-23-11, 09:42 AM
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Will this method drain torque converter also

I have a 92' Ford Ranger XLT with 2.9 V6 engine. It has the automatic A4LD transmission. It's time for me to change the transmission fluid and filter again. I have two questions.

1.Does my make/model have two transmission cooling devices? I know there is a condenser mounted trans fluid cooler behind the grill. But I also notice trans fluid lines going into the radiator.

I know that I can disconnect the trans fluid return line at radiator or trans to drain fluid.

2. But what if I disconnect the flexible trans fluid return line trailing from the condenser mounted cooler? I figured out which one it is. It would be easier. I know this would not drain the trans fluid in the radiator channel. But is that all that important? Would this alternate method drain the trans and torque converter if I keep adding fluid with the engine running till it drains out clean?

Thanks,
Dave
 
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Old 01-23-11, 09:50 AM
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yes- i use this method all the time.
put drain pan under flex hoses-start engine-watch for fluid to almost stop flowing from hose-shut engine off-add 3 qts fluid - repeat 2 times- top off fluid.
 
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Old 01-23-11, 11:08 AM
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Thanks Newtofta.

You do understand I would be draining from the condenser mounted trans cooler flexible line, not the return line from the radiator itself

Just want to make sure this method would be sufficient

Thanks
 
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Old 01-23-11, 03:41 PM
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yes-you are just doing a maintenance type fluid change.
the small amount of fluid still in the cooler won't amount to much.
not- trying to clean/flush the cooler in the radiator tank.(correct?)
& if not sure of which hose-disconnect both.& point them in to the drain pan.
 
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Old 01-24-11, 06:53 AM
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Yes, you are correct. I am not trying to flush the cooler in the radiator tank

I looked at the transmission line plumbing in addition to reading about the A4LD, and I am almost certain of the direction the fluid travels in.

In my make/model, it looks like the fluid cools in the condenser mounted cooler first, then it enters the bottom of the radiator where it cools more, Finally, it exits through the return line at the top of the radiator and back to the transmission.

But like you said I can always disconnect both if unsure. Better than paying $125 to have it done
 
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Old 01-24-11, 07:52 AM
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another little info.
mercon 5- replaces dextron fluid.
mercon 5 handles heat better / last longer.
 
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