missfire getting worse
08-02-2006, 01:53 PM
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Location: Trussville, AL, USA
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missfire getting worse
My cars been missing at idle for a while now and I haven't paid much attention to it but now it's really starting to do it pretty bad. For instance, when I crank it after it's sat all night, it's rev's up and misses and sounds like it's on the rev limiter or something for just a split second and then goes down and idles fine but still slightly misses. It's also starting to miss around 7k as well. So I decided to try and figure out the problem. I did a compression chest and it got 220psi across the board. The plugs are new NGK's and the plug wires are new NGK's. I also replaced the rotor button as well. Still misses...The only thing I can think of would be the ignitor or the coil. Which is more common to be bad with these symptoms?
08-02-2006, 05:09 PM
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Re: missfire getting worse (jspec *****)
both get tired and old after about 110,000 miles, but the coil is the bigger of the two problems, pull it out and check its winding resistance.
08-04-2006, 10:06 PM
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Re: missfire getting worse (StevesEKhatch)
Man I was out playing around tonight and that miss is realllly becoming noticable around 7k and 7.5k sometimes now. Does that sound like the coil or what? I need someone with some experience with this stuff.
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