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1990
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Wrangler L6-258 4.2L VIN T 2-bbl
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Exhaust Gas Recirculation
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Technical Service Bulletins
Exhaust Gas Recirculation: Technical Service Bulletins
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Recalls
Recall - HC and CO Emissions Exceed California Standards
Overview
Service Procedure
A. Replace Choke Vacuum Diaphragm
B. Replace EGR Valve
C. Replace PCV Harness and Decel Valve
D. Install the Recall Completion Label
E. Complete Proof of Correction Form
Owner Letter
By Symptom
Driveability
Recall - HC and CO Emissions Exceed California Standards
Overview
Service Procedure
A. Replace Choke Vacuum Diaphragm
B. Replace EGR Valve
C. Replace PCV Harness and Decel Valve
D. Install the Recall Completion Label
E. Complete Proof of Correction Form
Owner Letter
Recalls
Recall - HC and CO Emissions Exceed California Standards
Overview
Service Procedure
A. Replace Choke Vacuum Diaphragm
B. Replace EGR Valve
C. Replace PCV Harness and Decel Valve
D. Install the Recall Completion Label
E. Complete Proof of Correction Form
Owner Letter
All Technical Service Bulletins
Recall - HC and CO Emissions Exceed California Standards
Overview
Service Procedure
A. Replace Choke Vacuum Diaphragm
B. Replace EGR Valve
C. Replace PCV Harness and Decel Valve
D. Install the Recall Completion Label
E. Complete Proof of Correction Form
Owner Letter