Hi all,

My 1999 Suburban 5.7 had a weird little problem yesterday. I was merging onto the freeway and had to get on her pretty hard as I kind of cut another car off. Had her floored till I got up to speed, about 85 mph. The car had zero problems getting up there. I was cruising for about a minuet then got a flashing check engine light for about 10-15 seconds, felt a slight miss.... was not severe at all. It cleared up after 15 seconds and she was back to her good ole' self.

The entire ignition system has been gone through within the last year (cap, rotor, plugs, wires, coil), compression test (all 8 were within 170-180 psi), as well as a new fuel pump and filter.

Pulled the codes when I got home and there was a history P0305. Is there anybody else out there who has experienced this issue? And should I be concerned with this? What could have caused a 15 second miss? This is the first time that I experienced something like this... really the first time that the car had a misfire. Overall it runs extremely well... and excellent power for 201k and 21 years old.

Thanks,
Cole L.

 

How long since the last tune up?

 

Ok, what does the plug look like, this thing won't edit, post, nothing. Probably my PC issue.