Buick Enclave manuals

Buick Enclave: Engine Performance Diagnostic Routine Outline

Buick Enclave 2008-2017 Service Manual / Engine / Engine Performance Diagnostic Routine Outline

* PLEASE READ THIS FIRST *

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.

  1. Verify Customer Complaint
  2. Check for Relevant Technical Service Bulletins (TSBs)
  3. Perform Visual Inspection (See Basic Diagnostic Procedures)
  4. Test Engine Sub-Systems (See Basic Diagnostic Procedures)
    • Mechanical Condition (Compression)
    • Ignition Output
    • Fuel Delivery
  5. Check Air Induction System For Leaks
  6. 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.

  1. Check for Diagnostic Trouble Codes (DTCs).(See Self-Diagnostics)
  2. Repair cause of DTCs.
  3. 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.

  1. If no self-diagnostics available, or no trouble codes present, identify symptom.
  2. 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.

  1. Perform required tests. (See Systems & Component Testing)
  2. Verify complaint is repaired.

READ NEXT:

 Transmission

 Shift Lock Control

SCHEMATIC WIRING DIAGRAMS SHIFT LOCK CONTROL WIRING SCHEMATICS Shift Lock Control System Fig. 1: Shift Lock Wiring Schematic DIAGNOSTIC INFORMATION AND PROCEDURES DIAGNOSTIC CODE INDEX DTC B2705: GE

 Transfer Case - Getrag 790

SEE MORE:

 Passenger Sensing System

United States Canada and Mexico The passenger sensing system will turn off the right front passenger frontal airbag under certain conditions. The driver airbag, seat-mounted side impact airbags, and roof-rail airbags are not affected by the passenger sensing system. The passenger airbag s

 Description and Operation

ABS DESCRIPTION AND OPERATION This vehicle is equipped with a Bosch ABS/EBD/TCS/VSES brake system. The electronic brake control module (EBCM) and the brake pressure modulator valve is serviced separately. The brake pressure modulator valve uses a four circuit configuration to control hydraulic pre

© 2016-2021 Copyright www.benclave.com