Intlcutlass Posted August 2, 2006 Report Share Posted August 2, 2006 So I have the 440t4 aka 4t60. It's been rebuilt once already about 4 years ago. This is related to that, but not about that entirely. If I have a 180 degree thermostat, does that help keep the trans cool, or is the trans fluid core in the radiator seperate from the coolant. (I mean I know it's a seperate core because 1 is regular coolant, and 1 is trans fluid, but does the radiator keep them the same temp?) How hard is it to install a temp gage for the trans? I would like to get a dakota digital to match the interior gages. Would the sender get installed in the pan? or someplace else? We all know a tranny cooler helps, and that it should be installed on the line going to the trans, and after the radiator, but why are "plate type" coolers better than "fin & tube" type? Is it because they are tougher or do they cool better? Is there any relation towards the surface area of the cooler-vs- it's thickness, and how well it cools? When you convert your trans to synthetic, how do you get ALL the old fluid out? Quote Link to comment Share on other sites More sharing options...
corning_d3 Posted August 3, 2006 Report Share Posted August 3, 2006 Yes, a 180 will keep your trans temps down slightly, but may mess the ECU in cooler weather. A temp guage is fairly easy to install, and the pan is the best place for it. There are some aftermarket pans with a bung installed(or a spot to drill out and install a sender). I'm not sure why plate type coolers are better, but I do know the tubes in the fin type are restrictive, due to all the U-bends.. More surface area=more cooling. An example.. A 4-core radiator(which is thicker) will cool off an engine better than say, a 2 core.. The only way to get all the fluid out is to remove the torque converter and drain it, after removing/draining the transmission. Synthetic fluid can be mixed with conventional, but it's a good idea to do a complete drain. One last piece of advice, do NOT flush!! Quote Link to comment Share on other sites More sharing options...
Intlcutlass Posted August 3, 2006 Author Report Share Posted August 3, 2006 Why no flush? Quote Link to comment Share on other sites More sharing options...
Black90Euro Posted August 3, 2006 Report Share Posted August 3, 2006 flush = BAD -- Made mine slip, I couldn't hardly back up the driveway, the mechanic added a treatment suggested by GM made it better but I get a little slipping sometime in first as it's wound out .... Quote Link to comment Share on other sites More sharing options...
1990lumina Posted August 4, 2006 Report Share Posted August 4, 2006 flush = BAD -- Made mine slip, I couldn't hardly back up the driveway, the mechanic added a treatment suggested by GM made it better but I get a little slipping sometime in first as it's wound out .... mine slips going up the driveway when it's cold....after the fluid warms up it seems okay.....I hate that feeling of slippage though Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.