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misfire, what to check

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Old 09-30-2013, 12:06 PM
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Default misfire, what to check

wondering if i need new cap and rotor or if couldpossibly be something else?? just know its slow on starting. any help?
Old 09-30-2013, 04:55 PM
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So it's hard to start, or misfires after you start it, or both? We need a lot more info to help you. Check engine light on?
Old 09-30-2013, 05:11 PM
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There is something wrong with my Jeep. What could it be?

This is only slightly more vague than the OP's question.
Old 09-30-2013, 05:34 PM
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98 xj, no check engine light, randomly skips a spark as if water was in distributor but distributor is dry. replaced starter and exhaust is smelling a lil rich
Old 09-30-2013, 09:38 PM
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Still a pretty vague description. Does it misfire when cold, hot, both? At idle or at higher speeds?

Some general suggestion:
1. Tune-up (cap, rotor, plug, wires)
2. Clean all ground connections and both ends of battery cables
3. Clean IAC
4. Test fuel pressure
Old 09-30-2013, 10:20 PM
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whats iac? was thinking cap and rotor
Old 09-30-2013, 10:26 PM
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Originally Posted by 1998xjspt
whats iac?
idle air control

Originally Posted by 1998xjspt
was thinking cap and rotor
Could very well be, but there are many possible causes.
Old 10-01-2013, 09:11 AM
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true. ima check spark plugs to see what condition they're in. if they seem good ill get cap and rotor. wires don't click tight on distributor but i have them held on tight so might as well replace those too
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