My 85 jetta will jump like its not getting gas until it gets to 4000 rpm then runs smooth. This only happens in first and second. Third fourth, and fith are fine. Not sure were to start - vacume hose, gas filter or what? Please give me some help....

Edited by Customer (name blocked for privacy) on August 29 2006 at 2:19 PM

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1985 Volkswagen jetta 1.4?