Tranny maintenance
10-31-2014, 06:14 PM
#31
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Year: 1998
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Engine: 4.0L HO
So when the radiator loop is closed (cold weather driving), what is maintaining that optimum temp range at the heat exchanger? The engine thermostat maintains temp inside the motor, not inside the radiator where the tranny fluid heat exchanger is located.
10-31-2014, 08:10 PM
#33
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Year: 1998
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Come on dude, be serious. Your "loop" joke is a good one.......or r u being serious?
Last edited by djb383; 11-01-2014 at 12:23 PM.
11-02-2014, 10:53 PM
#34
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Year: 1998
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The thermostat indirectly controls it, because the exchanger is going to be as warm as the coolant flowing around it...as for open loop/closed loop, are we talking about fuel system, or cooling system? they are different.
11-03-2014, 03:42 PM
#35
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Can the thermostat indirectly control optimum tranny fluid temp range? Doesn't seem like it. I think he was joking about the "loop", but I'm not sure.
11-04-2014, 12:47 AM
#36
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It's incidental. The thermostat controls engine temp, not trans... but the heat it dumps into the radiator can keep the trans from running too cold.
Only has to be 90-100 deg or so to keep the trans happy.
Only has to be 90-100 deg or so to keep the trans happy.
11-04-2014, 07:06 AM
#37
Beach Bum
Not controlled but influenced/maintained within a range.
Coolant temp in radiator, around the transmission heat exchanger, runs around 150 F in 75F ambient.
Coolant temp in radiator, around the transmission heat exchanger, runs around 150 F in 75F ambient.
11-04-2014, 11:21 AM
#40
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All I know is that when I had problems running hot (around 220, IR verified), my trans was also running about 218 at the pan. That was before I took the trans loop out of the rad.
11-04-2014, 11:34 AM
#41
Beach Bum
11-04-2014, 07:44 PM
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11-04-2014, 08:27 PM
#45
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