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check for bad vaacum line or manifold leak!! I replaced gaskets on my 2000 v6 and it runs fine.also check the plug wires are correct!!
AnswerUse carb cleaner, with the engine running spray around the intake manifold if the engine RPM changes then you know the leak is there. Also spray all the vacuum lines in the same manner again if the RPM changes you found your leak. I have used this method for over 30 years.