Symptoms - Engine Mechanical

Symptoms - Engine Mechanical

Strategy Based Diagnostics
1. Perform a [Diagnostic System Check - Vehicle Diagnostic Information] before using the symptom tables, if applicable. Diagnostic System Check - Vehicle Diagnostic Information
2. Review the system operations in order to familiarize yourself with the system functions.
All diagnosis on a vehicle should follow a logical process. Strategy based diagnostics is a uniform approach for repairing all systems. The diagnostic flow may always be used in order to resolve a system problem. The diagnostic flow is the place to start when repairs are necessary.

Visual/Physical Inspection
^ Inspect for aftermarket devices which could affect the operation of the Engine.
^ Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
^ 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 engine RPM, ambient temperature, engine temperature, amount of engine warm-up time, and other specifics.
^ Compare the engine sounds, if applicable, to a known good engine and make sure you are not trying to correct a normal condition.

Intermittent
Test the vehicle under the same conditions that the customer reported in order to verify the system is operating properly.

Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
^ [Base Engine Misfire without Internal Engine Noises] Base Engine Misfire Without Internal Engine Noises
^ [Base Engine Misfire with Abnormal Internal Lower Engine Noises] Base Engine Misfire With Abnormal Internal Lower Engine Noises
^ [Base Engine Misfire with Abnormal Valve Train Noise] Base Engine Misfire With Abnormal Valve Train Noise
^ [Base Engine Misfire with Coolant Consumption] Base Engine Misfire With Coolant Consumption
^ [Base Engine Misfire with Excessive Oil Consumption] Base Engine Misfire With Excessive Oil Consumption
^ [Engine Noise on Start-Up, but Only Lasting a Few Seconds] Engine Noise on Start-Up, But Only Lasting A Few Seconds
^ [Upper Engine Noise, Regardless of Engine Speed] Upper Engine Noise, Regardless of Engine Speed
^ [Lower Engine Noise, Regardless of Engine Speed] Lower Engine Noise, Regardless of Engine Speed
^ [Engine Noise Under Load] Engine Noise Under Load
^ [Engine Will Not Crank - Crankshaft Will Not Rotate] Engine Will Not Crank - Crankshaft Will Not Rotate
^ [Engine Compression Test] Testing and Inspection
^ [Oil Consumption Diagnosis] Oil Consumption Diagnosis
^ [Oil Pressure Diagnosis and Testing] Testing and Inspection
^ [Oil Leak Diagnosis] Oil Leak Diagnosis