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Union Mills, NC
My wife just got a 2003 Mazda B2300 from her dad with 62000 miles on it. It ran great for about 650 miles, then it started missing at idle and when pulling a hill. Taking it out of overdrive doesn't help. Most of the time it will miss when at full throttle. A time or two it didn't. Also we ran a bottle of gas treatment through it. It didn't help. Does a bad coil pack cause these symptoms? Any suggestions would be appreciated.