I have a 96 cherokee sport, and lately its been running hot- into the red line. I replaced the water pump, the electric fan works well, changed the thermostat, got a k&n filter, yesterday had the whole rad flushed from jiffy, and it runs a bit cooler, but when I start getting above 3000 rpms it starts getting hot. I am getting a rad cap today, but I am kinda at a loss. I drive this thing to a park city every day in the winter (freeway, 4000 foot elevation gain) so it runs about 3000 rpms a lot. but the temps now are in the 90s here so that makes it hard on the engine. Any other advice?

 

the only thing i can think of is the a/c cond clear of debris,bugs,mud,etc? if it just running a little warm you might try adding water wetter,I have never used it but a friend of mine said it works great.
Does your mechanical fan appear to be working good.

 

hood vents, im looking into some for mine to let the heat out cuz it has nowhere to go. potentially cheap