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misfiring after replacing plugs and wires
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travis313
Novice
May 8, 2010, 3:26 PM
Post #1 of 8
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misfiring after replacing plugs and wires
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I have a 2000 chevy cavalier with a 2.2l and 147000 miles and recently put new plugs in it. After replacing the plugs with ac delco plugs it started misfiring. I sprayed the plug wires with water and noticed an arc coming from the spark plug boots so i repalced them as well thinking this was the problem. The engine is still acting like its misfiring but i dont see any arcs anywhere. Can someone help me figure out where to go next with this problem?
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Hammer Time
Ultimate Carjunky
/ Moderator
May 8, 2010, 3:53 PM
Post #2 of 8
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Re: misfiring after replacing plugs and wires
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Is your check engine light coming on?
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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travis313
Novice
May 8, 2010, 4:17 PM
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Re: misfiring after replacing plugs and wires
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The check engine light is on, but that is because the fuse to my cooling fan keeps blowing due to the motor drawing to many amps, I'm going to replace the fan motor this weekend, but there are no other codes other than the cooling fan one.
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Hammer Time
Ultimate Carjunky
/ Moderator
May 8, 2010, 4:24 PM
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Re: misfiring after replacing plugs and wires
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That makes me doubt whether you are actually getting misfires. The computer tracks misfires and will set codes identifying the cylinders. If you are, then you have likely cracked one of the plugs putting them in.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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travis313
Novice
May 8, 2010, 4:38 PM
Post #5 of 8
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Re: misfiring after replacing plugs and wires
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I have checked the plugs and they all look fine . Forgot to mention this problem is only noticeable at idle or low speeds like when you come to a stop light or just start it up and its not all the time its every now and then the engine kind of cuts out for a second then it acts fine. I mean theres no bang or pop coming from the tail pipe but its like a cylinder isnt firing or something. You feel the engine move a little bit then it stabilizes. At faster speeds you dont notice anything.
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Hammer Time
Ultimate Carjunky
/ Moderator
May 8, 2010, 4:49 PM
Post #6 of 8
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Re: misfiring after replacing plugs and wires
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I doubt you have a misfire. You may have knocked off a vacuum line or cause an air leak somewhere.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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nickwarner
Veteran
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May 8, 2010, 4:49 PM
Post #7 of 8
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Re: misfiring after replacing plugs and wires
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with the new info this sounds a lot more like an IAC motor problem than a general misfire. As Hammer said, if it was misfiring it would pull codes. For random cylinder it would be P0300 and more specific would elicit further codes.
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travis313
Novice
May 8, 2010, 4:57 PM
Post #8 of 8
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Re: misfiring after replacing plugs and wires
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Thanks i'll give that a look and let you know what i find.
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