still missfires

[dirkvid]

I replaced the plugs and it missfires again after a week of driving I'm getting the sputters and bad gas milage again. what else can i do?? change the plug wires or just take it in to the shop?? auto zone code from the get go says missfire on 2 cylanders.

 

[ric]

I replaced the plugs and it missfires again after a week of driving I'm getting the sputters and bad gas milage again. what else can i do?? change the plug wires or just take it in to the shop?? auto zone code from the get go says missfire on 2 cylanders.

have you replace the boots ? you can buy just the boots at Autozone or checkers.

 

[shawnstcyr]

Is it a higher mileage vehicle? If so, I would definitely replace those wires or boots. As far as fuel mileage goes, a clogged fuel filter will cause bad mileage, but will not cause a misfire. It should be replaced annually.

 

[DewRunner]

fuel filter replacement every 60,000 miles or 48 months

 

[toytech76]

Why was it misfiring in the first place? Did the plugs have carbon tracks down the side? If so, you need to replace the wires/ or coils depending on what cyl it was on. Do yourself a favor, dont buy kragen crap. Get oem

 

[Stick Figure]

which cylinders does it say is misfiring? have you tried swapping coils or boots, or anything around to see if the misfire code follows anything from cylinder to cylinder.

 

[p nut]

Like others have said, replace the wires and coils. And get OEM. I get Autozone/Checkers/NAPA stuff for brakes, wipers, etc., but not engine stuff. I always go OEM for plugs, wires, belts, etc.

 

[hdoggie24]

I had a cylinder 2 misfire and i tried replacing plugs, wires, etc. Turned out to be a faulty fuel injector. Cost a lot to fix. Would of done it myself but was about to go on a trip a few days after it happened so I didn't have time. I think these parts go for about 125 bux brand new. Pretty expensive fix. Good luck. check out your fuel injectors. mine was 97

 

[dirkvid]

Guess I'll start w/ new wires and coil, I'm sure it's do anyway.