Short quick jerks while driving

[justin0469]

While driving (usually while accelerating) my 98 GST will make these short quick jerks. Nothing that moves your body but noticable and definately not ok. I could barely accelerate at all. Then, later on in the trip, everything seemed to be ok. If I was having some kind of mechanical failure, I would think it would be more consistent. Does this sound like misfiring?

 

[awdtalontsi1992]

Sounds like a misfire to me. I would check your plugs and wires over very carefully. If you want a quick trick. Run the car at night and spray a mist of water on the wires. They will light up with sparks if they are the problem.

 

[justin0469]

Changed plugs, they definately needed it but it didn't fix the problem. Now I am trying to put in a new fuel filter but the fuel lines will not come off of the old one. We have been trying forever to get it off but can't. Any tips?

 

[JayRolla]

Breaker bar, just keep working at it and you will get it. Also what plugs and wires are you using. Also what did you gap the plugs at.

 

[justin0469]

NGK BPR7ES, the old plugs indicated they needed to be colder and its pretty modded up. Gapped at .28 I dont know what wires, some generic stuff I guess, whatever the previous owner put on there