FORD 460 Overheating Mystery
1997 Fleetwood Southwind 35P ~Ford 460 engine. I noticed the rig running a bit warm when we first got it 5 years ago. It had 23K miles on it then. It seemed each trip it would run a little more on...
Forum Discussion
goprolocal wrote:
Thinking that the dash gauge could be off, I replaced the temperature sending unit and gauge with a number dial. The rig runs down the highway at 245 degrees if I'm not towing. If I'm towing, 245 to 258 degrees uphill.
Assuming that is accurate, that is about 20-30 degrees too hot !
goprolocal wrote:
I can hear the clutch fan kick in at 230 to 240 degrees or so...maybe sooner ..and it does cool it down a few degrees so I know it's working.
Again, assuming your gauge is accurate, that is late. The fan should be fully engaged by about 200-210 degrees.
There is a very simple test you can do to test for blown head gasket.
My gut says the fan clutches is not working correctly.
