Common Problems and Maintenance Tips for the 4.3 Vortec Engine
  Like any engine, the 4.3 Vortec has a few documented difficulties, such as distributor wear, fuel injector issues in higher-mileage cars, and intake manifold gasket leaks. However, compared to contemporary engines with intricate electronics, these problems are well-documented and reasonably cheap to resolve.   The 4.3 Vortec's lifespan is greatly increased by routine maintenance....
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