Heating System Troubleshooting; Heating And Defroster Troubleshooting Manual - Mazda 1983 RX7 Service Manual

ARTICLE BEGINNING
TECHNICAL SERVICE BULLETIN
HEATING SYSTEM TROUBLESHOOTING MANUAL
Model
Category
Bulletin No.
Date
DESCRIPTION
This Service Bulletin contains a new Heating System Troubleshooting
Manual that was developed by the Mazda Canada Quality Assurance
Section. The diagnostic procedures were developed and tested in
Canada during a Cold Weather Test that took place in February 1993.
The diagnostic procedures were tested on vehicles in which customers
had complained about a lack of heat for several winters. The
effectiveness of these procedures was confirmed.
SPECIAL NOTE
This same manual will also be used as a hand out for all forth coming
Training Courses on Climate Control Systems.
HEATER AND DEFROSTER TROUBLESHOOTING MANUAL
INTRODUCTION
An investigation was conducted using customer vehicles at dealer-ships
across North America over a two year period. The investigation was
conducted to determine if there were any concerns that were difficult
to repair using existing Mazda repair manuals.
The following list represents items most commonly left unrepaired or
undiagnosed by the dealer.
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
ventilation system.
In order to assist in the correct diagnosis and repair of Heating
System concerns the following troubleshooting manual was developed.
See Fig. 1. for a visual description of the Climate Control System.
HEATING SYSTEM TROUBLESHOOTING CAT. U, NO. 93-04
For www.iluvmyrx7.com
Copyright © 1998 Mitchell Repair Information Company, LLC
Monday, August 27, 2001 06:36AM
All Mazda Models
U
93-04
September, 1993
Article Text
1983 Mazda RX7