Buick Encore: Engine Performance Diagnostic Routine Outline
NOTE: This article is generic in nature and all information does not apply to all vehicles. For vehicle specific information, see the appropriate articles in the ENGINE PERFORMANCE category.
WHERE DOES DRIVEABILITY DIAGNOSIS START?
PERFORM BASIC INSPECTION
NOTE: This article is generic in nature and all information does not apply to all vehicles. For vehicle specific information, see the appropriate articles in the ENGINE PERFORMANCE category.
- Verify Customer Complaint
- Check for Relevant Technical Service Bulletins (TSBs)
- Perform Visual Inspection (See Basic Diagnostic Procedures)
- Test Engine Sub-Systems (See Basic Diagnostic Procedures)
- Mechanical Condition (Compression)
- Ignition Output
- Fuel Delivery
- Check Air Induction System For Leaks
- Check & Adjust Basic Engine Settings(See On-Vehicle Adjustments)
- Ignition Timing
- Idle Speed
CHECK FOR TROUBLE CODES
NOTE: This article is generic in nature and all information does not apply to all vehicles. For vehicle specific information, see the appropriate articles in the ENGINE PERFORMANCE category.
- Check for Diagnostic Trouble Codes (DTCs).(See Self-Diagnostics)
- Repair cause of DTCs.
- Clear PCM memory and repeat self-test.
DIAGNOSE SYMPTOM
NOTE: This article is generic in nature and all information does not apply to all vehicles. For vehicle specific information, see the appropriate articles in the ENGINE PERFORMANCE category.
- If no self-diagnostics available, or no trouble codes present, identify symptom.
- See trouble shooting procedure to identify problem. (See Trouble Shooting - No Codes)
TEST SYSTEM
NOTE: This article is generic in nature and all information does not apply to all vehicles. For vehicle specific information, see the appropriate articles in the ENGINE PERFORMANCE category.
- Perform required tests. (See Systems & Component Testing)
- Verify complaint is repaired.
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Do not allow or create a condition of misfire in more
Gear Tooth Contact Patterns
NOTE: This is GENERAL information. This article is not intended to
be specific to any
unique situation or individual vehicle configuration. For model-specific
information see appropriate articles whe
General Cooling System Service
This article is generic in nature and all information does not apply to all
vehicles including those without a
liquid cooling system. For vehicle specific information, see the appropriate
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SEE MORE:
General Information
Your vehicle is an important
investment. This section describes
the required maintenance for the
vehicle. Follow this schedule to help
protect against major repair
expenses resulting from neglect or
inadequate maintenance. It may
also help to maintain the value of
the vehicle if it is sold. It is th
Compass
The vehicle may have a compass
display in the Driver Information
Center (DIC).
Setting the Compass Zone
Under certain circumstances, such
as during a long trip or moving to a
new area, the compass zone will
need to be reset. If the compass is
not set to the correct zone, it may
give false readings.
