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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Engine Performance Safety Precautions
Always refer to Emission Decal in engine compartment before servicing
vehicle. If manual and decal
differ, always use decal specifications.
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
articles i
SEE MORE:
Electrical System Overload
The vehicle has fuses and circuit
breakers to protect against an
electrical system overload.
When the current electrical load is
too heavy, the circuit breaker opens
and closes, protecting the circuit
until the current load returns to
normal or the problem is fixed. This
greatly reduces the chance
Description and operation
STEERING WHEEL AND COLUMN DESCRIPTION AND OPERATION
The steering wheel and column has 4 primary functions:
Vehicle steering
Vehicle security
Driver convenience
Driver safety
Vehicle Steering
The steering wheel is the first link between the driver and the vehicle. The
steering wheel is fastene
