The Agency has closed this investigation based on its review of consumer complaints, field reports, warranty claims and other data regarding engine compartment fires and power steering fluid leakage in model year (MY) 2007 Chrysler Pacifica vehicles with 4.0L engines.the available evidence indicates that power steering fluid leaks in the subject vehicles and the fires that may result from these leaks, occurred early in the vehicle's service life.moreover, changes in the assembly process appear to have remedied the condition causing the leaks.the available data confirms a declining trend for both complaints and warranty claims as the subject vehicles remain in service. The closing of this investigation does not constitute a finding by the Agency that a safety-related defect does not exist.the Agency reserves the right to take further action if warranted by the circumstances. (see document file for additional information regarding this resume.)