fitzerfam3

I just recently changed my plugs i did all but one of them cause one of the new plugs i bought was cracked so i went and got a new one put it in now when it is idling it seems rough and when i accelerate it runs fine just when im at crusing speed keeping the gas at the same position it seems to buck back and forth a little could it be a misfire or what?Thank you

GI-Jeepin'

well how did it run before you changed the plugs? Did you put in the recommened and also did you check the gap? The majority of plug manufacturers pre-gap all their plugs, but sometimes one or two slips by or it gets changed in transit.

Michael4

It may also be your injectors. I have the same problem by what you said. I have 250,000+ and these are original injectors. They cost about $43 per injector I think. I'd check with someone else on prices tho.

Bustedback

Did you change the wires too? If not, you may have damaged the boots when pulling them off of the plugs. It only takes a pinhole for the spark to leak through.

Michael4

i did a full tune-up, plugs cap rotor n wires. thats when the roughness came out more.

Bustedback

Recheck the firing order.

Michael4

I replaced everything one at a time. I just haven't had the time to put injectors in.