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ideling problem

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Old May 21, 2007 | 05:52 PM
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Lil_Bud_89's Avatar
Lil_Bud_89
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ideling problem

When I start my 79 f-250 you have to hold the pedal to floor. Once it starts it runs really rough u have to keep playing with the gas pedal. I checked all the plugs and the fourth on was wet. Its got a 400 in it. i changed that and it ran fine. and then the problems started again. I am assuming it a bad ring. On all the other plugs theres carbon built up. Thanks for all the help.
 
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Old May 21, 2007 | 06:58 PM
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Being you found a "wet plug", start with a compression test to determine the condition of your rings. Do a wet test and a dry test and compare them.
 
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