the pcm will flash the o/d light whenever it sees a problem...doesnt mean overheating necessarily. could be a # of issues. if it stays in 1st too long it sounds like youve lost 2nd gear. when this happens it shifts from 1st to 3rd. then the pcm sees the fault and turns on the mil. it probably has a code for 2nd gear wrong ratio or slippage....
former owner...2003 marauder black
vortech air/air reichard 3.4 pulley
dr exhaust w/ mac stainless mufflers
baer 14in brakes, stainless hoses
4.30's
31spline mosers, auburn pro, tfs girdle
dynotech shaft
305 nittos
sold!