Hey guys, I got an 02 disco with overheating problems. Pulled the t/stat and it ran fine. Just flushed everything and put the t/stat back and it's overheating again. No leaks anywhere. Brand new t/stat. Any ideas? Thanks ahead of time..

 

Bad new t/stat?

 

When you pull the tstat and run it there is nothing stopping the coolant flow to allow the engine to come up to operating temps. I bet if you let it run long enough it will overheat. When you say "overheating" how are you seeing this, via the temp gauge in the instrument cluster? If so that very bad. There could be a number of reasons for the overheating, from blown head gasket allowing exhaust gas to enter the coolant to simple things like a bad coolant overflow tank cap allowing the coolant to boil and overflow to early.

 

a bad t-stat is quite common