Mine had bad lifter clatter when new and it would only do it when hot and idling for a while (long stop light). I took it to the dealer several time and what they figgered out was a plunger in the oil pump was to short and caused low oil presure at idle. They installed a longer plunger and the problem went away. If enough people complained about this there could be a service bulitin on this. It might be worth it call a dealer to see or ask the price on a fix.
Dennis


95 Sportage, gone but not forgotten.
98 Jeep TJ, 4" Zone springs with RC Long arms, Ford 8.8", 4.56 gears & Detroit locker rear, D30, 4.56 & Detroit Trutrack front.