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Old 01-30-2003, 05:23 PM
S-Class Guru S-Class Guru is offline
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Join Date: Jan 2003
Location: Dallas
Posts: 776
I agree, either an air leak or the linkage got jammed. on the air cleaner housing there is only one little vacuum line, that plugs into the big tube going to the valve cover. This line regulates fuel pressure a bit I think. You might check to see if it broke. Also, check the air temp sensor on the snorkel; but really, neither of these should affect the idle to this extent. I've run mine many times with the whole air cleaner lying on the bench and it idles perfectly. Check out that throttle linkage as suggested, might be a wire got on it.
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