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Discussion Starter · #1 ·
1988 Wrangler 258 with BBD-once the air bleed valve in the thermostatically controlled air cleaner has reached operating temperature , does the applied manifold vacuum normally leak out of the thin protruding tube into the air box or is it supposed to have a solid seal ? If it does not fully seal , would this be considered a vacuum leak causing a lean condition ?

 
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