1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

miss fire at 5k

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Old 12-04-04, 09:33 PM
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miss fire at 5k

i am getting a miss fire at about 5k rpm.dont know what it is.timing was just done.
Old 12-05-04, 01:28 AM
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spark plug wires.
Old 12-05-04, 03:24 AM
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If the timing was just adjusted, if I'm understanding your post correctly, maybe somebody goofed?
Old 12-05-04, 10:21 AM
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cheap/old spark plugs??
Old 12-05-04, 03:05 PM
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i did the timing.
Old 12-05-04, 03:16 PM
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I've been duped by old spark plugs before. Do you have a way to bench test them?
Old 12-05-04, 03:34 PM
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check your cap and rotor, when setting my timing, i'd rev for full advance and let off throttle, the light would break up indicating miss on deceleration. my rotor and cap aren't in good shape. rotor is cracked and cap shows signs of arcing.
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