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Intermittent Engine Miss @ Idle, No Error Codes

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Old Oct 21, 2003 | 10:40 PM
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txmoores
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Question Intermittent Engine Miss @ Idle, No Error Codes

I have a ’96 Bronco with 60K miles and a 351w which has a miss at idle. The engine will be idling smooth for around 5 to 10 seconds and then miss and return to smooth idle for another 5 to 10 seconds. This only occurs at idle and runs smooth all of the rest of the time and throttle position. I have changed the fuel filter, plugs, wires, cap, rotor, coil and air filter. I took it to a local shop and they put it on their computer and there were no error codes, although the front most O2 sensor was a little on the lean side, but within limits. Anyone have any ideas?
 
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Old Oct 21, 2003 | 10:46 PM
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Check for vac. leaks
 
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Old Oct 22, 2003 | 09:37 AM
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From: Roseville
timing issue?
 
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