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Old 04-10-2006, 12:09 PM   #1
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transmission flushing your toyota

The mechanic
for all of you that have been frusterated with the time it takes to flush your transmission;

Cause the transmission has a thermostat to control oil flow to your trans cooler, when cold oil is introduced to your transmission the flow is severley restricted causing flush times to take approx 1 1/2 hrs for toyotas.

Solution Try heating oil to 80 to 90 degrees F
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Old 04-10-2006, 12:49 PM   #2
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What????

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Old 04-10-2006, 03:04 PM   #3
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I'm really confused. Was the purpose to educate folks on the board? What is your background sir?

Transmissions are not my area of expertise at all, but I've never heard of a transmission having a stat. If it did, you'd have to have a bypass valve so the pump wouldn't pump through the lines and cooler. Also, when it did open you'd be releasing all that cold oil into the transmission all at once. You could have a temp sensor and a variable actuator I suppose. Still, all of this extra crap seems pointless.

Heating up your oil to operating temp has more to do with expansion and getting all the sludge and gunk moving around, so when you do change your fluid (whatever the fluid may be) that you end up with a more complete flush.

They do sell aftermarket add on temp regulators, I know, but I've never know one to be designed into a transmission. Aftermarket ones are made for high performance applications... like if you lived in the North Pole.

This post seems to be coming out of left field.
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Old 04-10-2006, 05:16 PM   #4
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Quote:
Originally Posted by wrenchmonster
I'm really confused. Was the purpose to educate folks on the board? What is your background sir?

Transmissions are not my area of expertise at all, but I've never heard of a transmission having a stat. If it did, you'd have to have a bypass valve so the pump wouldn't pump through the lines and cooler. Also, when it did open you'd be releasing all that cold oil into the transmission all at once. You could have a temp sensor and a variable actuator I suppose. Still, all of this extra crap seems pointless.

Heating up your oil to operating temp has more to do with expansion and getting all the sludge and gunk moving around, so when you do change your fluid (whatever the fluid may be) that you end up with a more complete flush.

They do sell aftermarket add on temp regulators, I know, but I've never know one to be designed into a transmission. Aftermarket ones are made for high performance applications... like if you lived in the North Pole.

This post seems to be coming out of left field.
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Old 04-10-2006, 05:16 PM
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