[Sirfoil]

In all seriousness if the check engine light is flashing it (usually) means your engine is misfiring. It will stay solid after the misfiring stops.

Originally Posted by los211

on my way to work I noticed that my check engine light was flashing. I thought HMMMM that is a new one (wink wink) when I got to work the light was still flashing. Being a mechanic I know they aren't supposed to flash in this manor. I noticed it was a rythmic flashing not just on-off like a blinking street light. So I began to think what in the world is this. I only drove 4 miles and it was fine when I left. Then I realised it wasn't just a random pattern. Holy crap it was morse code for SOS. WTF?!?!?!?!? My truck was flashing me the sos. has anyone seen this??? I hope its not serious. Maybe all the problems from the first post are going to attack at the same time according to the time keeper clock.