T-SB-0362-09
October 14, 2009
Coolant Leak and/or Abnormal Noise from Water Pump
Applicability
| YEAR(S) | MODEL(S) | ADDITIONAL INFORMATION |
|---|---|---|
| 2009 – 2010 | Corolla | Engine(s): 2ZR
VDS(s): BL40E, BU40E, BU4EE |
| 2009 – 2010 | Matrix | Engine(s): 2ZR
VDS(s): KU40E, KU4EE |
Introduction
Some 2009 – 2010 model year Corolla and Matrix vehicles may exhibit a small coolant leak and/or abnormal noise from the engine compartment originating at the water pump assembly. Refer to the repair procedure below to address this condition.
Production Change Information
This TSB applies to vehicles produced BEFORE the Production Change Effective VINs shown below.
| MODEL | PLANT | PRODUCTION CHANGE EFFECTIVE VIN |
|---|---|---|
| Corolla | NUMMI | 1NXBU4EE*AZ203905 |
| TMMC | 2T1BU4EE*AC230808 | |
| Kanto | JTDBU4EE*A9099257 | |
| Takaoka | JTDBU4EE*AJ057183 | |
| Matrix | TMMC | 2T1KU4EE*AC230839 |
Warranty Information
| OP CODE | DESCRIPTION | TIME | OFP | T1 | T2 |
|---|---|---|---|---|---|
| EG9026 | R & R Water Pump Assembly | 1.2 | 16100-39465 | 64 | 14 |
APPLICABLE WARRANTY
|
Powertrain Warranty. This warranty is in effect for 60 months or 60,000 miles, whichever occurs first, from the vehicle’s in-service date.
Parts Information
| PREVIOUS PART NUMBER | CURRENT PART NUMBER | PART NAME | QTY |
|---|---|---|---|
| 16100-39465 | 16100-39466
Genuine Toyota 16100-39466 Water Pump Assembly
Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API | Pump Assembly, Water | 1 |
Required Tools & Equipment
| REQUIRED MATERIAL | PART NUMBER | QTY |
| Super Long Life Coolant (SLLC) | 00272-SLLC2 No products found. | 5.8 U.S. qts (5.5 liters, 4.8 Imp. qts) |
Repair Procedure
- Confirm coolant leak and/or abnormal noise from the engine compartment.
- Is the coolant leak and/or abnormal noise originating at the water pump?
- YES — Proceed to step 3.
- NO — This TSB does NOT apply — Continue diagnosis as necessary.
- Replace the water pump assembly.
Refer to the Technical Information System (TIS), applicable model and model year Repair Manual:
- 2009 Corolla: Engine/Hybrid System – Cooling – “2ZR-FE Cooling: Water Pump: Removal & Installation”
- 2010 Corolla: Engine/Hybrid System – Cooling – “2ZR-FE Cooling: Water Pump: Removal & Installation”
- 2009 Matrix: Engine/Hybrid System – Cooling – “2ZR-FE Cooling: Water Pump: Removal & Installation”
- 2010 Matrix: Engine/Hybrid System – Cooling – “2ZR-FE Cooling: Water Pump: Removal & Installation” 4. Confirm the repair and proper vehicle operation.
No products found.
No products found.
- Provides protection down to -34 degree fahrenheit
- Helps prevent rust and corrosion
- A patented organic acid corrosion inhibitor package to provide extended engine protection against rust and corrosion
- Contains 30 – 50 ppm of denatonium benzoate as a bittering agent
Last update on 2026-06-19 / Affiliate links / Images from Amazon Product Advertising API
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