Chevy Silverado Misfire , Dirty Injector ,.This 1999 Chevy Silverado was running badly and had a misfire. The Chevy Silverado hooked up to the Scanner showed a misfire on number eight cylinder .The 5.3 in the chevy Silverado is easy to switch ignition coil and plug wire with another cylinder. After swapping two coils the misfire stayed the same, so i pulled the number eight and number six spark plugs , done a compression check on those two cylinders and then swapped the spark plugs. Still no change and compression was same on both cylinders. Then i pulled number eight fuel injector and cleaned it . After cleaning the injectors the Chevy Silverado truck runs like new.
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