PEAK PUTTERS

the man is bitching and crying we (HE) can't figure out why, its a cj willies/5 1956, has the ford302 motor and does fine on side streets but when we hit the highway it hits 250 degrees? so confusing why~

How good's the sending unit or guage?

My guess is a partially clogged radiator. Get someone with one of those fance dancy point a shoot laser thermometers and point it at different parts of the rad and see if you have cold spots. (Or use your hand.)

Seen lots of things cause this sort of issue over the years... Check the easy stuff first: coolant level, mixture, radiator cap gasket, anything covering the radiator or an excessive amount of bent-over fins, stuff like that. Then you need to look into coolant flow issues: plugged radiator, eroded blades on the water pump, or even a bad radiator hose that is sucking in during higher RPM use. Cooling systems are not complex at all, and it's usually simple stuff that gives you grief...

ok this is gonna sound real intellegent!
~thanks for the info was helpful for him to figure out what was up.
he fixed the thingy maging, replaced the whattcha macallit, and the what ever heat prob is good now!~ haha

Sounds like a typical Jeep repair.

What Jim said...