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Central AC & Heat vents not pushing air 900 1992

Just went through this with mine. FAQ is indeed place to look. If you don't see apparant main vac hose leak, try detaching and plugging small yellow vac line to servo. To do this, remove knee panel under dash on drivers side with two half turn plastic retainers, look on right side just behine console and note round disk shaped vacuum server toward rear (there is another toward front of car next to it) with small yellow and (I think) blue vac line. There is a loop on the fitting end to hold it on the 90 degree fitting of the servo. Flip this loop toward the line and pull off. Use something to block the yellow line (I put in a small screw, careful not to stretch or damage it). My dash air starting working again.

Guys on the board told me it may diminish air at my feet, but beats I can compromise for not having to spend 4 hours of labor to replace servo.

Gary






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