Cryptothedog
Member
- Joined
- Jan 24, 2021
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Backstory: I had a 2004 suburban with the 5.3. The temp Guage always hung at 210 no matter if it was hot outside, I was towing, whatever. My 2015 suburban seems to run really hot. For the most part it stays at 210 unless iget the RPMs up around 3k then it climbs to about 220-235 before cooling back to 210. If I'm towing up hill in the mountains or really trying to give it power while towing it goes as high as 250 (the little line right before the red 260.) It doesn't get all the way to the red and cools itself back to 210. Is this normal with this model year? I've replaced the thermostat, coolant temp sensor, water pump pulley (it was making noise). I have also burped the cooling system as much as I can (no more bubbles come out). It always goes back to the normal 210. I just don't want to cause any damage by it running so hot.
If this isn't normal do you have any suggestions on what to check?
If this isn't normal do you have any suggestions on what to check?