When I was getting P0402, removing the EGR valve, cleaning it as well as I could, and putting it back, made the problem go away, for a week or two, then it came back. Replacing the EVR, likewise, seemed to cure the problem for a short while, but it soon enough returned. Replacing the EGR valve with a whole new EGR valve made the problem go away, and several months later, it has not returned. I'm not sure how bad it is in a Duratec, but in a Zetec, removing and reinstalling the EGR valve is a major pain in the a$$. It just isn't worth it to go to all the trouble, just to clean and reinstall the same old EGR valve. After doing that once, I swore that the only way I would ever again remove the EGR valve would be if I had a brand new one to install in its place.
{I do hate spam, but that isn't really part of my email address. Remove the string ?HatesSpam? from the email address ?BobHatesSpam@blaylock.to? to email me. No advertisements. Spammers will be dealt with very harshly!}
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Moonlight Blue 1996 Mercury Mystique GS , Zetec engine, ATX. No mods. (Well, OK, one mod. Before I got rid of my previous car, a 1994 Tempo, I swapped radios. I liked the Tempo's radio better. That counts as a mod, doesn't it? I also kept one of my Tempo's wheels to use as a spare. I hate those stupid ?compact? spares that come with modern cars. Does this count as a mod? If so, I guess I have two mods. Replaced burned/melted blower switch and connector on 19 February 2002 with a 1P3T toggle switch from Marvac and a Molex connector from Rat Shack; I guess this now makes three mods.)
