Hi everyone,
I have a 2002 TB. I am using an Autotap scan tool to read my transmission temps. I have the GM enhanced data pack, so I am able to read all parameters. I see two temperatures for transmission. One says Transmission Oil Temperature, and one says Transmission Fluid Temperature. I am trying to calibrate a fan that I put on my external transmission cooler, but am confused as to which of these sensors is reading what. They are about 25-30 degrees different. Also, what is the "desired" fluid temperature? I just bypassed the internal cooler as it actually seemed to heat up the fluid on really hot days. My engine temp hovers between 230-240, and the trans would be right there or a few degrees warmer. Now I'm down to 180 - 210 depending on which sensor I look at.
I'm having Torque converter slippage issues at slow lockup speeds, but don't want to address that now. I've talked with a couple transmission shops, and they don't want to help me ream the TCC bore (which I think is the root cause) due to the high miles (180K). They just want to rebuild it. I'm trying to extend it's life as much as possible. I will be towing a 3K pound tent trailer next month from Salt Lake City to Yellowstone. I will take it easy, and watch my temps closely. I just don't want it to die while on the road.
My fluid is nice and clear with no discoloration at all.
I have a 2002 TB. I am using an Autotap scan tool to read my transmission temps. I have the GM enhanced data pack, so I am able to read all parameters. I see two temperatures for transmission. One says Transmission Oil Temperature, and one says Transmission Fluid Temperature. I am trying to calibrate a fan that I put on my external transmission cooler, but am confused as to which of these sensors is reading what. They are about 25-30 degrees different. Also, what is the "desired" fluid temperature? I just bypassed the internal cooler as it actually seemed to heat up the fluid on really hot days. My engine temp hovers between 230-240, and the trans would be right there or a few degrees warmer. Now I'm down to 180 - 210 depending on which sensor I look at.
I'm having Torque converter slippage issues at slow lockup speeds, but don't want to address that now. I've talked with a couple transmission shops, and they don't want to help me ream the TCC bore (which I think is the root cause) due to the high miles (180K). They just want to rebuild it. I'm trying to extend it's life as much as possible. I will be towing a 3K pound tent trailer next month from Salt Lake City to Yellowstone. I will take it easy, and watch my temps closely. I just don't want it to die while on the road.
My fluid is nice and clear with no discoloration at all.