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28 Posts
i have a 02 f450 7.3 superduty it fails a buzz test on 2 7 8 i replaced the valve cover gaskets the ipr valve an the idm along with the number 8 injector all parts from for it runs very ruff has trouble idling an blows out alot of wight smoke I'm stumped any ideas on what to check would b helpful thanks for reading :crazy: