CHEVY SILVERADO MISFIRE INTERMITTENT COMPRESSION

In today's video we take a look at a 2013 Chevrolet Silverado 1500 with a V8 5.3l engine. The customers complaint is that there is a misfire on cylinder number 8. The repair shop replaced spark plugs, wires and even swapped ignition coils and injectors, but the misfire continued on cylinder number 8. Convinced that the engine had a mechanical problem they asked me to take a look. What I found was something very interesting. Cylinder number 8 at times had good compression and at times had low compression. Could it be a bad lifter, camshaft, valve spring or a valve seat?
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Disclaimer:
Due to factors beyond the control of Advanced Level Auto, I cannot guarantee against improper use or unauthorized modifications of this information. Advanced Level Auto assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. Advanced Level Auto recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of Advanced Level Auto, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not Advanced Level Auto.