I have a 01 XE and it had some oil leaking into the #1 spark plug well when I bought it, the previous owner said the valve cover gasket and such had been replaced about 30,000 miles ago. I replaced the valve gasket and spark plug seals with new and it is still leaking oil into the #1 spark plug. Could there be an issue with the valve cover in that spot? or something else, seems strange that it would be leaking through the same area after 2 new seals have been put on. Thanks for any info.