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Lightning, Harley-Davidson F-150, Roush F-150 & Saleen F-150 SVT Ford F150 Lightning, Roush, Saleen and other performance F150's

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Old 06-04-2012, 10:13 PM
Rob03lightning Rob03lightning is offline
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dpfe hoses why am i blowing them off when they should be sucking

i have and 03 lightning and when i gas on it i blow the hoses to the dpfe sensor off why is there presure blowing them off when they should be making a vacuum?
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Old 06-04-2012, 10:37 PM
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Ford_Six Ford_Six is offline
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The cats may be plugging up or there's another restriction in the exhaust system.
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Old 06-06-2012, 11:36 PM
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Mufflers often rust internally and restrict the gas flow, especially if OEM. If original equipment, I wouldn't over thinkit, simply sawzall muffler/catz at a time off.
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Old 06-06-2012, 11:36 PM
 
 
 
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