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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Sudden Rough Idle

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Old Sep 5, 2017 | 09:33 AM
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  #31  
Cummings Guy's Avatar
Cummings Guy
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One more clue: When it does run bad there is a clicking/popping sound like a exhaust leak or spark noise when you pull a plug wire. It is not there when running well so it is not likely a exhaust leak. Can't imagine where spark voltage would be leaking.
 
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Old Sep 5, 2017 | 04:23 PM
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Get a spray bottle, and start spraying all the plug wires and distributor down.
 
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Old Sep 5, 2017 | 05:32 PM
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Spray it with what?
 
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Old Sep 5, 2017 | 05:40 PM
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Originally Posted by Cummings Guy
Spray it with what?
Water
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