Puddle of coolant in engine valley
I have an 03 4.0 with 148k on her. It just sprung a substantial coolant leak yesterday. I have had to add between a pint and a quart of coolant every oil change for quite a while but noticed a large puddle on the ground yesterday and was a gallon and a half low. I saw no signs of a leak on the radiator, hoses, t-stat, or water pump. I pulled the air intake tube, throttle body, fan and shroud for a closer look and found a puddle of coolant on top of the engine in the valley. I could not locate an exact source. Are there any common causes for this? My dad has an 02 2.3 that had a cracked intake manifold but I haven't been able to find many threads about SOHC 4.0s intake leaking. Maybe I'm bad at searching? Any insight is appreciated.