Emission controls in older carbureted engines relied on forcing additional air from pumps and valves located just before the exhaust manifold to ensure better burns. This is known as a secondary air injection system, and today has evolved to increase the efficiency of Catalytic Converters. Failed pumps and leaks are common signs of a bad Air Injection System, leading to off air and fuel ratios and poor acceleration. Remember to check the Manifold Gaskets and Seals for wear and tear when examining the exhaust.
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- 2 pc Walker Converter Inlet Exhaust Bolt & Springs for 1993-1995 Chevrolet K1500 4.3L 5.0L 5.7L V6 V8Special Price $32.72 Regular Price $46.99
- 2 pc Walker Converter Inlet Exhaust Bolt & Springs for 1994-1995 GMC K2500 4.3L 5.0L 5.7L V6 V8Special Price $32.72 Regular Price $46.99
- 2 pc Walker Converter Inlet Exhaust Bolt & Springs for 1993-1995 GMC C1500 4.3L 5.0L 5.7L V6 V8Special Price $32.72 Regular Price $46.99