You sure it is white and not oil vapors??? Check it out it should be oil vapors. Cehck the top of the dipstick for some murky yellowish stuff and inside the valve cover at the PCV. If nothing but oil and no water what you are seeing is light oil vapors which will come from the breather to the carb to be burnt if everything is still hooked up stock if not yes out the breather.
89 2.5 TBI, 4" RC lift, 1" Booms, SYE, Adams Driveshafts front and rear, Ford 8.8 with 4:88s, BFG 33X12.50X15, and a ton of other stuff.
AF Jeep Club Tail Number 184