Take the plug out of the EHA and clean it and reinsert it with dielectric grease and see if that helps. If you do change it, forget about making is just that and the O-ring. You probably should change your hoses too since now when you disrupt it, they will leak.

http://www.peachparts.com/shopforum/showpost.php?p=724516&postcount=8

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01 Ford Excursion Powerstroke
99 E300 Turbodiesel
91 Vette with 383 motor
05 Polaris Sportsman 800 EFI
06 Polaris Sportsman 500 EFI
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04 Tailgator 21 ft Toy Hauler
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