chiwia . & | [| { 8 | anees / TECH TIPS Dixie Part Numbers: S-80077 Applications: 2002 — 2005 Mazda MPV Condition: The operator of the vehicle may complain of a hard starting condition and that once started the engine runs rough during normal operating temperatures. Cause: A potential cause for the above conditions is the engine coolant temperature sensor, which, when initially produced, had poor durability. First production sensors were prone to the brass housing failing, coolant getting inside the sensor and corrosion of the sensor resulting in malfunction. Correction: Verify that the sensor is operating properly based on the resistance measurement of the sensor. When cold (approximately 21°C) the sensor should be between 2.2 and 2.8 kQ. When hot (approximately 80°C) the sensor will measure between 0.29 and 0.4 kQ. Refer to the manufacturer’s procedures for replacing the engine coolant temperature sensor if not operating within the above ranges. REV: 20100614 Courtesy of APRA TSB_8011.doc Dixie Tech Tips are intended for use by professional technicians, and are not for the general public. They are written to inform technicians of conditions that may exist or as a guide to aid in diagnosing and servicing a vehicle. All references to original equipment manufactures, vehicle manufactures and any other Trade Mark names are for the sole purpose of identifying the vehicle and or part that the Tech Tip applies to. This document is property of Dixie Electric Ltd. and is not to be copied or distributed with out written permission.