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Old 01-30-2011, 11:18 AM
Mike H Mike H is offline
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Try unhooking the vacuum line to the EGR and see if it helps your stumble. If so check the valve and solenoid they are bad about getting weak on high mileage trucks. I have had weak coils make them act up like yours as well. If you have a know good coil plug it in and try it.
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