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1991 GMC Vandura 1500 Question: THROTTLING PROBLEM

 

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Visitor, 4.3L V6, Orlando, FL, March 11, 2011, 17:42

MY VAN RUNS GREAT BUT RECENTLY I HAVE THROTTLING PROBLEM THE WILL CUT OFF WHEN STOPS OR EVEN SOMETIMES WHEN I PUT IT DRIVE I CHANGE PLUGS,WIRES,ROUTER, DISTRIBUTER CAP,TPS AND THE AIR CONTROL VALVE AN TI STILL HAVE THROTTLE PROBLEM PLEASE HELP THANKS IN ADVANCE

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