bozilla Posted May 30, 2006 Share Posted May 30, 2006 I have an '02 RX300 FWD and would like to add an aux. transmission cooler infront of the radiator. Can anyone who has a AWD '02 lexus or one with a towing package tell me which of the two transmission oil lines at the bottom of the radiator are connected to their aux. oil cooler. Quote Link to comment Share on other sites More sharing options...
wwest Posted May 31, 2006 Share Posted May 31, 2006 I have an '02 RX300 FWD and would like to add an aux. transmission cooler infront of the radiator. Can anyone who has a AWD '02 lexus or one with a towing package tell me which of the two transmission oil lines at the bottom of the radiator are connected to their aux. oil cooler. Every "circuit", electrical or otherwise, needs an input and an output..... Bottom line.... it doesn't matter which one you "interrupt". But I wouldn't put the ATF cooler in front of the radiator and A/C condensor assembly where it will add additional heat to the "stack". Put the new ATF cooler, like the factory one, in the right front fender well, maybe with a 12 volt fan powered by a thermostatic switch. But the factory one in my 2001 AWD RX300 doesn't seem to have helped. Quote Link to comment Share on other sites More sharing options...
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