check engine light

when mine did this it was my fuel pump.

you can but a scanner for eec-iv codes that will tell you the numbers so you don't have to count usually twenty to thirty buck or you can use a volt meter, test light, anything of this nature here is a link that will explain the whole process (you have to go through a couple of proseses key on engine off KOEO, then KOER king On Engine Running http://www.explorerforum.com/forums/showthread.php?t=147734