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1989
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Wrangler L6-258 4.2L VIN M 2-bbl
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Emission Control Systems
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Technical Service Bulletins
Emission Control Systems: Technical Service Bulletins
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Recalls
Emissions
Recall - Excessive CO Emissions
Overview
Service Procedure
A. Install Air Bleed Control Valve Harness
B. Install Choke Vacuum Diaphragm
C. Adjust Idle Speeds
Owner Letter
Recall - Fuel Sending Unit
Overview
Service Procedure
A. Remove Fuel Tank
B. Remove and Straighten Fuel Tank Sending Unit
C. Install Fuel Tank Sending Unit Gasket
D. Reinstall Fuel Tank
E. Complete Proof of Correction Form
Owner Letter
Recall - Choke Vacuum, PCV Harness, Idle Speed
Overview
Service Procedure
A. Replace Choke Vacuum Diaphragm
B. Replace PCV Harness
C. Adjust Idle Speeds
D. Install the Recall Completion Label
E. Complete Proof of Correction Form
Owner Letter
Recall - Choke Vacuum, PCV, and Idle Speed
Overview
Service Procedure
A. Replace Choke Vacuum Diaphragm
B. Replace PCV Harness
C. Adjust Idle Speeds
Owner Letter
Recall - PCV Harness and Idle Speed Adjustment
Overview
Service Procedure
A. Replace PCV Harness
B. Adjust Idle Speeds
Owner Letter
Safety
Recall - Fuel Sending Unit
Overview
Service Procedure
A. Remove Fuel Tank
B. Remove and Straighten Fuel Tank Sending Unit
C. Install Fuel Tank Sending Unit Gasket
D. Reinstall Fuel Tank
E. Complete Proof of Correction Form
Owner Letter
By Symptom
Recall - Excessive CO Emissions
Overview
Service Procedure
A. Install Air Bleed Control Valve Harness
B. Install Choke Vacuum Diaphragm
C. Adjust Idle Speeds
Owner Letter
Recall - Fuel Sending Unit
Overview
Service Procedure
A. Remove Fuel Tank
B. Remove and Straighten Fuel Tank Sending Unit
C. Install Fuel Tank Sending Unit Gasket
D. Reinstall Fuel Tank
E. Complete Proof of Correction Form
Owner Letter
Recall - Choke Vacuum, PCV Harness, Idle Speed
Overview
Service Procedure
A. Replace Choke Vacuum Diaphragm
B. Replace PCV Harness
C. Adjust Idle Speeds
D. Install the Recall Completion Label
E. Complete Proof of Correction Form
Owner Letter
Recall - Choke Vacuum, PCV, and Idle Speed
Overview
Service Procedure
A. Replace Choke Vacuum Diaphragm
B. Replace PCV Harness
C. Adjust Idle Speeds
Owner Letter
Recall - PCV Harness and Idle Speed Adjustment
Overview
Service Procedure
A. Replace PCV Harness
B. Adjust Idle Speeds
Owner Letter
All Technical Service Bulletins
Vehicle Identification Number - Index
Overview
Vehicle Identification Number
Identification MMC Import Vehicles
Identification Model Eagle Premier
Identification Model Eagle Medallion
Identification Model Jeep
Recall - Excessive CO Emissions
Overview
Service Procedure
A. Install Air Bleed Control Valve Harness
B. Install Choke Vacuum Diaphragm
C. Adjust Idle Speeds
Owner Letter
Recall - Fuel Sending Unit
Overview
Service Procedure
A. Remove Fuel Tank
B. Remove and Straighten Fuel Tank Sending Unit
C. Install Fuel Tank Sending Unit Gasket
D. Reinstall Fuel Tank
E. Complete Proof of Correction Form
Owner Letter
PCV System - Rough or Erratic Idle
Recall - Choke Vacuum, PCV Harness, Idle Speed
Overview
Service Procedure
A. Replace Choke Vacuum Diaphragm
B. Replace PCV Harness
C. Adjust Idle Speeds
D. Install the Recall Completion Label
E. Complete Proof of Correction Form
Owner Letter
Recall - Choke Vacuum, PCV, and Idle Speed
Overview
Service Procedure
A. Replace Choke Vacuum Diaphragm
B. Replace PCV Harness
C. Adjust Idle Speeds
Owner Letter
Recall - PCV Harness and Idle Speed Adjustment
Overview
Service Procedure
A. Replace PCV Harness
B. Adjust Idle Speeds
Owner Letter