Cold starts in my '00 2.4:
I needed to drive about 5 miles to adequately warm up my truck to overcome a stalling/restarting issue. Driving any less meant some darn difficult restarts. New distributor cap fixed this issue every time it redeveloped which was seemingly every couple/few years. I only avg 12-15k miles/yr.
Am guessing some condensation accumulated in there due to a deteriorated seal b/tw the cap and distributor...thus the 5 miles of driving helped to dissipate the moisture.
Hope this helps...good luck w/ trouble-shooting & fix.