blinking check engine light

[pittmike]

My 2003 XLT 5.4 had to sit awhile while I took my sweet time fixing a wheel hub assembly issue. Maybe sat 2 months. Now about a week after driving and a tank fill I had a check engine light. This morning it started flashing but stopped. I have read this is a misfire and though I might have felt that in the ride a couple days ago. Two things:

- Is it common for a truck that sat long to misfire upon going again without tune up?
- Does the flashing make it more serious?

 

[01yellerCobra]

I'd pull the code and see which cylinder is missing. Depending on where it was sitting some moisture could have gotten into the plug hole.

 

[pittmike]

thanks

 

[JTKustoms]

i had a misfire last year in my 98 and the CEL was flashing. i agree it could be moisture in a plug or maybe you just got bad fuel at the fill up