Tahoe Forum
Hi there, you could send your cluster to Digital Dash Solutions (fixmyguages.com) and have them add the trans temp gauge and rebuild other gauges while they have it so u don't get any misreading needles so u don't start thinking, " Oh crap, i have low oil pressure. Lol! I also think I read sumwhere that the temp sensor is built with the line pressure sensor, but not sure bout that.
Or
Troll salvage for a 3/4 or 1 ton like yours, just make sure brake booster system is identical (may send to have rebuilt just to be safe).
I ordered a new 03-05 SS white face cluster with red needles & Escalade needle bases with blue LEDs and looks fricken great on my 03 Tahoe.
Took my old cluster cause it worked and put in wife 04 Yuk (diff brake booster) and got "Check Brake Booster" (she didn't tell me when it came up on display, just noticed when my Tahoe was in for shocks). Shop I have used for over 20 years confirmed booster was ok and that cluster was from wrong booster truck, and I didn't tell him cluster was changed, Ha!
Switched back and no error (I think right away, but don't remember now, been a while). I get lots of compliments of the factory trans temp gauge all the time and very nice to see it working. Hope this helps.
I added a pic, hope you can see
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