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HEATING SYSTEM TROUBLESHOOTING CAT. U, NO. 93-04 Article Text 1983 Mazda RX7 For www.iluvmyrx7.com Copyright © 1998 Mitchell Repair Information Company, LLC Monday, August 27, 2001 06:36AM ARTICLE BEGINNING TECHNICAL SERVICE BULLETIN HEATING SYSTEM TROUBLESHOOTING MANUAL Model All Mazda Models DESCRIPTION This Service Bulletin contains a new Heating System Troubleshooting SPECIAL NOTE This same manual will also be used as a hand out for all forth coming HEATER AND DEFROSTER TROUBLESHOOTING MANUAL INTRODUCTION An investigation was conducted using customer vehicles at dealer-ships 1. Air leakage between the blower unit and the cooler unit. 2. Missing or mis-installed sealing grommets in the firewall. 3. Incorrect operation of the thermostat. 4. Improper usage of the recirculation and fresh air mode of the In order to assist in the correct diagnosis and repair of Heating |