Is the cooling fan operating?
Operating during the time of overheat?
Is it possible that the radiator has minerals and deposits stuck inside its vanes, degrading it's ability to work correctly. Our water does that around here, a professional tear-down and cleaning/ rodding is the best thing, next to replacement.
Maybe it's something as simple as a radiator hose, old and squishy, being s. Ucked flat due to water pump action?
Monday, July 4th, 2011 AT 10:44 AM