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Bumping an old thread for some info. My 06 LS overheated as they always eventually do. I replaced the coolant pipe under the throttle body last year, so I thought the likely culprit was the thermostat housing assembly. I replaced the assembly with a Dorman cause I couldn't be down for a long...

Hello everyone! This is my first post as a member. It is in tegard to what I believe is the only real issue with the LS, the cooling system. I have an 06 with 124k and the only time its ever been in for service is when the cooling system needed parts. I can't for the life of me figure out why...