YEs..I had this problem on my 1998 SPORTAGE. First, check to see if your VALVE COVER GASKET is leaking..2 coils and 4 spark plugs are HIDDEN (really well under the valve cover)..I think the year 2000 has the same set up..Go to AUTOZONE car parts store..they will do a FREE CODE reading on your car. If it comes up with an ENGINE MISFIRE (Cylinder 1, or 3 0r whatever. I had to REPLACE ONE spark plug wire (my misfire was on cylinder #3).Get the ORIGINAL Kia spark plug wire(about $13 each from Dealer)..many people with leaky valve covers have OIL go down onto spark plug wires and into spark plugs..this could be your problem. Another is a recall as electrical connectors C123 and C124 can come apart , leading to stalling..I am betting on you have a BAD spark plug/or spark plug wire..GOOD LUCK..and PS DO NOT CHANGE these plugs with engine HOt..you will STRip the threads as the engine is an aluminum head..if you are not a mechanic..don't touch these stupid plugs. They are VERY hard to remove, but you can change the spark plug wire, although its a lot of work just to get at it..let me know how it goes. ALWAYS have a free CODE reading at AUTOZONE..will save you lots of $$.
Last edited by gail; 02-23-2008 at 08:04 PM.