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Old 12-14-2010, 08:21 AM   #1
matt49064
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2000 zts miss firing like crazy

i was sitting at a stop light last night when all of a sudden the check engine light started flashing. i was able to make it home but every time i slowed down to turn i got a wiff of gas smell in to the car. i dont know if it was just cause it was missing so bad of if this is part of the problem. if anyone has any ideas that would be great thanks


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Old 12-14-2010, 08:47 AM   #2
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most typical thing is the ignition coil. how many miles are on it? have you done a tuneup
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Old 12-14-2010, 09:04 AM   #3
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it has 220,000 on it i replaced the plugs when i did the new timing belt last summer but not the wires but the way i was feeling around in the dark last night i would have got a shock if they were broke right?
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Old 12-14-2010, 10:05 AM   #4
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could be a slight crack in a wire. do you live close to an autozone? perhaps they can get the code for you for free. if its a misfire on one cylinder, perhaps its a wire. if its a general misfire code id think coil first off.
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Old 12-14-2010, 10:24 AM   #5
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yeah theres an autozone right down the road ill hit them up at noon on my lunch and let you know what they say thanks for your help
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Old 12-14-2010, 10:45 AM   #6
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cool let me know
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Old 12-14-2010, 12:21 PM   #7
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went to autozone they said its a mis fire in cylinder #4
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Old 12-14-2010, 12:25 PM   #8
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Get some lifetime plug wires, that way you can replace them any time you have any engine running problems and eliminate that cause.

For now, I'd do that because it's overlooked maintenance, and should be done every 25k miles or so anyway. That might solve your problem, if not, check back and we'll go through diagnostics. While you're there, you might want to pull that plug, check the gap, and clean deposits off of it. Misfiring like that tends to foul plugs quick.
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Old 12-14-2010, 01:01 PM   #9
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Originally Posted by whynotthinkwhynot View Post
get some lifetime plug wires, that way you can replace them any time you have any engine running problems and eliminate that cause.

For now, i'd do that because it's overlooked maintenance, and should be done every 25k miles or so anyway. That might solve your problem, if not, check back and we'll go through diagnostics. While you're there, you might want to pull that plug, check the gap, and clean deposits off of it. Misfiring like that tends to foul plugs quick.
x2!!
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Old 12-14-2010, 02:00 PM   #10
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Quote:
Originally Posted by misfire View Post
x2!!
Sorry if its a hijack, but similar issues. Mine didn't start this problem until I replaced the plugs and wires. It seems to run fine, just has a real erratic idle. It finally gave me a check engine light, checked the codes and was a misfire on #2 and #4. I checked the plugs and they were fine. I ordered a coil pack. Do you think this might do it? What should the plug gap be? Thanks.
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