running roug CEL

[kb8rhu]

Ok so this has happened 2 times now about 6 months apart. My 97 f150 4x4 4.6. I left work this morning and truck started running like crap no power running rough on acceleration. the CEL started blinking. It did this like 6 months ago so I ran a can of sea foam in the tank and it went away. Does anyone have a clue why it does this? Is it bad gas?? I am stumped. I hope it clears out like last time but not sure yet.

 

[LightDuty]

it may be a bad COP. hook it up to a scanner

 

[westtnfx4]

Those old 4.6's don't have cop's....it more than likely is moisture in the gas/bad gas.....

 

[LightDuty]

oops my bad. Didn't realize the year

 

[kb8rhu]

yea bad gas is what I was thinking. I guess I should just burn off the tank and see what happens. thanks for the input. Maybe I should stop filling it at half tank all the time and let it go empty. Its just a lot too fill up from empty..lol

 

[Big'un]

Mine did that one time along time ago , and i put some fuel treatment in it , and it straightend up.

 

[Old_Skl_Raptr]

mines a 5.4 and it does that but it doesnt blink. the puter said it was EGR valves.

 

[bobkyle2]

pull the codes... blinking CEL lights means misfire... how old is plugs and wires...

 

[kb8rhu]

Well been driving for a couple of days now with no change. I guess I am gonna throw some plugs and wires at it. At least it is not supposed to snow. I will let you know what happens.

 

[iowaredneck]

good luck, it sounds like plugs and wires to me too.