im sure im beating a dead horse here, but i cant find anything useful by searching.
i cannot get my ZJ (95 Limited w/ 5.2L) to run at a reasonable temperature. the entire cooling system is brand new. i put in a new 3 row all metal radiator, new (not reman) water pump, new fan clutch, new thermostat (first i put in a 180* stat, then went to a 160 in hopes it would keep the engine cooler by opening sooner. 160 is in it now.), and new hoses.
during normal driving, even with the hood popped on the safety latch to let more air in, the coolant temp still climbs to 220*. if i turn on the A/C, it shoots up to almost 240.
ive installed an aftermarket temp gauge because i suspected my factory gauge was off. infrared thermometer is showing 220* on the thermostat housing.
occasionally i get a CEL and using the key trick i get code 32, EGR system malfunction. could this have something to do with it? ive tested the EGR valve per the procedure in the FSM (applied vacuum to it, engine stumbles, indicating the valve is functioning properly). tube is not plugged either.
i dont know where to start looking now. my dad suggested putting an electric fan in it, but i cant imagine a brand new clutch fan isnt moving enough air. e-fan would help at low speeds for sure, but even on the highway with lots of air moving, temp still gets up there. granted it has been over 100* here in AZ, but i still think it should not be running this hot. there was a period of a week here not too long ago where it rained alot and cooled down, and my temp gauge never touched 200.