1979 Ford Bronco (351M engine) overheats, tried everything I can think of

Roadranger49
Tue, 26 Mar 2013 23:56:43 +0000
Maintenance/Repairs

Got my 1979 Ford Bronco (351M engine) from my father. He had it in Colorado, mostly in a garage. Had 82,000 miles when I got it and has 67,000 miles now. Runs fine when the outside temperature is less than 80F. Above 80F, the will get hotter and hotter and the temp. gauge will climb. When the temp. gauge is 2/3 of the wat between Cool and Hot it will start to buck and cut out. Eventually the engine will stop. Then I have to wait for it to cool down to repeat the cycle. I have replaced all hoses, radiator, thermostat (3 times), radiator cap, carb. I have installed SS louvers in the hood. \Heck, I have even “burbed” it (see Internet). . Any ideas?

17 posts - 13 participants