Strange cold start issue.
For the last year or two I have noticed that when I do a cold start and run it for less than a minute and shut it off, then cold start it several hours later it will feel like it it not running on all cylinders. It clears within ten seconds and then runs normally. It does not do this if the engine is warmed up when I shut it down. In fact, it normally starts and runs very well.
I am not very concerned about this about this anomaly but wanted to see if anyone else has experienced this. Could this possibly be a symptom of something bad to come? Any ideas of what may cause it?
BTW, cold starts in So Cal are not very cold.
2002 FX4 Bright Red Supercab 4.0 SOHC, manual 5-spd & Tcase, 33" BFG MTs, K&N air filter, Modified air box inlet, Gibson SS cat. back exhaust, Bama flash, Hidden Hitch round receiver, Rear helper air springs, Electric trailer brake controller, Line-X bed liner, WAAG bar with KC lights and Wildernest shell.