01-013/05 2004-2005 MAZDA3 - ENGINE HARD START

Note: This bulletin supersedes the following TSB(s): 01-041/04. Please update your records accordingly.

BULLETIN NOTE

APPLICABLE MODEL(S)/VINS

2004-2005 Mazda3 - 2.0 and 2.3L engines, both Federal and California specification

DESCRIPTION

Some vehicles may experience an engine with hard starting (cranks but takes 10 seconds or longer to start). The condition is more likely after vehicle sits overnight or for an extended time. Rough idle may occur just after the engine is started.

This may be caused by fouled spark plugs if the vehicle is frequently driven in stop-and-go conditions, such as in heavy traffic. In some cases, foreign debris may get stuck in the pressure regulator valve of the fuel pump, and cause fuel holding pressure to drop below specification.

Customers having this concern should have their vehicles repaired using the following repair procedure.

REPAIR PROCEDURE

  1. Check fuel hold pressure after turning the engine OFF for 5 minutes or longer. Refer to Workshop Manual (section 01-14 FUEL LINE PRESSURE INSPECTION ). Specification is 36.2 psi or more.

  2. Verify repair.

PART(S) INFORMATION

NOTE: Please order only parts needed, based on engine size and emission type.

2.0L (FED), 2.3L (FED/CALIF)

 

Part Number

 

Description

 

Qty.

 

Notes

 

LF66-13-35XB

 

PUMP & GAGE, FUEL

 

1

 

-

 

BN8F-42-A18

 

RETAINER

 

1

 

-

 

BN8F-42-166

 

GASKET, PACKING

 

1

 

-

 

BN8F-42-167

 

NUT, UNION

(FUEL PUMP CAP)

 

1

 

-

 

L303-18-110

 

SPARK PLUG

 

4

 

-

2.0L (CALIF Only)

 

Part Number

 

Description

 

Qty.

 

Notes

 

LF67-13-35XA

 

PUMP & GAGE, FUEL

 

1

 

-

 

BN8B-42-165

 

O-RING

 

1

 

-

 

BN8B-42-161

 

PLATE SET

 

1

 

-

 

L303-18-110

 

SPARK PLUG

 

4

 

-

WARRANTY INFORMATION

NOTE:

 

Warranty Type

 

A

 

Symptom Code

 

02

 

Damage Code

 

93

 

Part Number Main Cause

 

Refer to Parts Information

 

Quantity

 

4 or 1

 

Operation Number / Labor Hours:

 

XX724XR1 / 0.3 (spark plug replacement)

XX724XR2 / 1.8 (fuel pump and gauge replacement)


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