I have a 15 suburban and was running into the same issues. I found the issue to be the factory radiator, replaced it with a ebay special radiator (all aluminum). Found that one to be leaking through the welds after 5k miles. Bought a mishimoto radiator, their racing thermostat and replaced the...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.