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dpfe hoses why am i blowing them off when they should be sucking

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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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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 04-26-2015, 06:40 AM
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Blowing hoses

Me too...03 Lightning i replaced the DPFE sensor and since then, they've been blowing off constantly..mostly just one (newer tube is parallel,stock ones went north & south) so the one i'll call it left if your standing at the front of the truck,just sorta slides off every day..super annoying looking for a new hose right now to help out possibly. Exhaust is only 2years old so should still be in good condition..?
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