- Symptoms - Engine Mechanical

Symptoms - Engine Mechanical
Strategy Based Diagnostics
1. Perform a Diagnostic System Check - Vehicle before using the symptom tables, if applicable. Initial Inspection and Diagnostic Overview
2. Review the system operations in order to familiarize yourself with the system functions. Refer to Disassembled Views, Engine Component Description, Drive Belt System Description, Lubrication Description and New Product Information .
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. For a detailed explanation, refer to Strategy Based Diagnosis. Initial Inspection and Diagnostic Overview

Visual/Physical Inspection
^ Inspect for aftermarket devices which could affect the operation of the Engine. Refer to Checking Aftermarket Accessories.
^ 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 Coolant 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
^ Coolant in Combustion Chamber Coolant In Combustion Chamber
^ Coolant in Engine Oil Coolant In Engine Oil
^ Engine Compression Test Testing and Inspection
^ Cylinder Leakage Test Component Tests and General Diagnostics
^ Oil Consumption Diagnosis Component Tests and General Diagnostics
^ Oil Pressure Diagnosis and Testing Component Tests and General Diagnostics
^ Oil Leak Diagnosis Component Tests and General Diagnostics
^ Drive Belt Chirping Diagnosis Drive Belt Chirping Diagnosis
^ Drive Belt Squeal Diagnosis Drive Belt Squeal Diagnosis
^ Drive Belt Whine Diagnosis Drive Belt Whine Diagnosis
^ Drive Belt Rumbling Diagnosis Drive Belt Rumbling Diagnosis
^ Drive Belt Vibration Diagnosis Drive Belt Vibration Diagnosis
^ Drive Belt Falls Off Diagnosis Drive Belt Falls Off Diagnosis
^ Drive Belt Excessive Wear Diagnosis Drive Belt Excessive Wear Diagnosis