This is my Blazer and has had an overheating issue for a long time. It is always when the ambient temp is up over 90 and at higher speeds. The radiator was replaced first when the original one started leaking. Then, a leak appeared from intake manifold gasket ...

FIX posted 7/9/2007

iATN Members:
Login to view full TechHelp request
Auto Repair Pros:
Join iATN to read this TechHelp request
Vehicle Owners:
Find a nearby iATN member to repair your vehicle