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Engine misfire?

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Old Mar 28, 2008 | 01:22 PM
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Default Engine misfire?

Ok, not sure where this question belongs but here it is. My car seems to have a misfire sometimes. I had it out yesterday playing with it. The first time I pulled out standing in it and shifted to 2nd without lifting on the gas and it was fine. Shifted to 3rd while staying in the gas and it started to flutter really bad so I quickly lifted and stood back in it and it was fine. That pissed me off so I slowed way down and went through the gears again. To the floor it went and never let off as I went to 2nd, flutterd pretty bad for about 2-3 seconds and straightened right up. Went to 3rd and it flutterd really bad for about 5 seconds and slowly straightened up. It did this once back in Sept. and the drag strip but I didn't think anything of it. Any ideas on what might cause this. Car has mods in sig.
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Old Mar 28, 2008 | 02:22 PM
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Originally Posted by Bonertee
Ok, not sure where this question belongs but here it is. My car seems to have a misfire sometimes. I had it out yesterday playing with it. The first time I pulled out standing in it and shifted to 2nd without lifting on the gas and it was fine. Shifted to 3rd while staying in the gas and it started to flutter really bad so I quickly lifted and stood back in it and it was fine. That pissed me off so I slowed way down and went through the gears again. To the floor it went and never let off as I went to 2nd, flutterd pretty bad for about 2-3 seconds and straightened right up. Went to 3rd and it flutterd really bad for about 5 seconds and slowly straightened up. It did this once back in Sept. and the drag strip but I didn't think anything of it. Any ideas on what might cause this. Car has mods in sig.
that could be a few things, clogged injector, stopped up fuel filter, a coil pack going bad, maybe a plug or plug wire going bad. i would just do a basic tune up, wires plugs and a new fuel filter, and maybe some fuel injector cleaner. is the car throwing a ses code?
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Old Mar 28, 2008 | 03:40 PM
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Well, me and the wife went out to eat last night so I whipped it into a Autozone and there little code reader said multiple engine misfires. The only thing that really confuses me the most is that it only does it when I shift while staying into the gas. If I let out of the gas when I shift it does fine or at least it hasn't acted like that yet. Thanks for the input. I will start with plugs and wires.
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Old Mar 29, 2008 | 02:53 PM
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From: eastern ky
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Originally Posted by Bonertee
Well, me and the wife went out to eat last night so I whipped it into a Autozone and there little code reader said multiple engine misfires. The only thing that really confuses me the most is that it only does it when I shift while staying into the gas. If I let out of the gas when I shift it does fine or at least it hasn't acted like that yet. Thanks for the input. I will start with plugs and wires.
well if it does it only when u stay in the gas that could be a clogged fuel filter. if its clogged then it will only let so much fuel into the motor meaning when ur giving it gas and shiftin its not gettin enough fuel and that could cause it to miss fire on mulitble cylinders
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