What is your question?
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What is your question?
There are 2 vacuum line ports at the back of the motor one is replaceable and the other is steel stationery. Another is top side to the right of the efi cover
What makes this problem better or worse?
nothing
How long has your 1990 Toyota 4Runner had this problem?
2 weeks
http://www.pirate4x4.com/forum/toyota-truck-4runner/61904-vac-diagram-90-3-0-4runner.html