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Also, maybe the o-ring on the idle adjustment screw is shot and letting the screw move on its own.


I think we have a winner. After work yesterday, I adjusted it out to get it to idle properly again. This time I taped the screw to keep it in place. Working great. I'll check the o-ring this weekend. I'd suppose 27 years of hot-cold cycles on a small piece of rubber under the hood has got to give eventually. <img src="/forums/images/graemlins/kewl.gif" alt="" />

85 4Runner - With NEW Marlin 4.7 Gears!! It's a whole new beast!