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Check for the correct oil level, proper oil viscosity, and correct filter application. Verify the exact operating conditions under which the concern exists. Note factors such as Compare the engine sounds, if applicable, to a known good engine and make sure you are Intermittent Test the vehicle under the same conditions that the customer reported in order to verify the system Symptom List Refer to a symptom diagnostic procedure from the following list in order to diagnose the Base Engine Misfire without Internal Engine Noises Base Engine Misfire with Abnormal Internal Lower Engine Noises Base Engine Misfire with Abnormal Valve Train Noise Base Engine Misfire with Coolant Consumption Base Engine Misfire with Excessive Oil Consumption Engine Noise on Start-Up, but Only Lasting a Few Seconds Upper Engine Noise, Regardless of Engine Speed Lower Engine Noise, Regardless of Engine Speed Engine Noise Under Load Engine Will Not Crank - Crankshaft Will Not Rotate Engine Compression Test Oil Consumption Diagnosis Oil Pressure Diagnosis and Testing Oil Leak Diagnosis Drive Belt Chirping, Squeal, and Whine Diagnosis Drive Belt Rumbling and Vibration Diagnosis Drive Belt Falls Off and Excessive Wear Diagnosis Drive Belt Tensioner Diagnosis
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
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