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  1. DTC's, Problems & Troubleshooting
    Hello everyone, I bought a 1999 Buick Park Avenue, naturally aspirated and, long story short, I replaced the upper plastic intake and gasket hoping that would help my rough idle and low power problem. Upon finishing the repair, and I had borrowed and DTC scanner from a friend and was setting...
  2. DTC's, Problems & Troubleshooting
    My 2000 park avenue base was hesitating just a little when at 20-45mph would do it a couple times in one day maybe 2 or 3 days a week check engine light came on read MAFS or vacuum issue, also started to stall when not totally cold 1st start in am or after work fires right up holds idle perfect...
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