Fuel System - Hesitation at High Altitude

TSB: 01-024/06

2003 - 2006 MAZDA6 2.3L - HESITATION / ROUGH IDLE AT HIGH ALTITUDE

NOTE:
This bulletin replaces 01-020/04. Please update your records accordingly.

BULLETIN NOTE

This bulletin supersedes the previous bulletin 01-020/04, issued on 05/28/04. The APPLICABLE MODEL (5)/VINS, PART(S) and WARRANTY INFORMATION have been revised.

APPLICABLE MODEL(S)/VINS

2003 - 2006 Mazda6 vehicles with 2.3L engine

DESCRIPTION

When driving in hot weather and high altitude conditions, some vehicles may experience hesitation/rough idle. In some cases the engine may quit and may not restart.

Conditions:

^ Elevation of 5,000 feet or greater

^ Ambient temperature of 90 degrees F or greater

^ Driving up a 7-8% grade

The fuel pump design has been change to eliminate cavitation.

Customers having this concern should have their vehicle repaired according to the following repair procedure.

REPAIR PROCEDURE

1. Verify concern.

2. Replace fuel pump with a new part according to the Workshop Manual (Section 01-14 FUEL PUMP UNIT REMOVAL/INSTALLATION).

3. Verify repair.





PART(S) INFORMATION





WARRANTY INFORMATION





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