Canada - Cooling - Abnormal Noise Water Pump

Bulletin
TSB3020

Issue Date
July 15, 2008

Market
Canada

Title
Abnormal Noise from Coolant Heat Storage Water Pump

Component
Engine Mechanical

Models
'04-'08 Prius

INTRODUCTION:

Some 2004 - 2008 model year Prius vehicles may exhibit a "squeak" type noise during vehicle startup or shutdown. This noise can be heard coming from the coolant heat storage water pump during cold ambient temperature conditions. Use the following procedure to address this condition only if the noise is confirmed to be coming from the coolant heat storage water pump.






APPLICABLE VEHICLES:






WARRANTY INFORMATION:

PRODUCTION CHANGE INFORMATION:







This TSB applies to vehicles produced BEFORE the Production Change Effective VINs shown.











PARTS INFORMATION:

REPAIR PROCEDURE:

1. After the noise is verified to be coming from the coolant heat storage water pump, replace it with a NEW part.

Refer to the Repair Manual within E-TAS / TIS library:
- Division: Toyota
- Model: Prius
- Year: 2004 / 2005
- Service Category: Engine/Hybrid System
- Section: Cooling
- Keyword: Coolant Heat Storage Water Pump (1NZ-FXE): Replacement

- Year: 2006 / 2007 /2008
- Service Category: Engine/Hybrid System
- Section: Cooling
- Keyword: 1NZ-FXE Cooling: Coolant Heat Storage Water Pump: Removal
- Keyword: 1NZ-FXE Cooling: Coolant Heat Storage Water Pump: Installation

2. Road test to verify proper operation of the coolant system.

NOTE:
Issue of this Technical Service Bulletin is to ensure that proper repair information is available. IT DOES NOT CONSTITUTE AN AUTHORIZATION FOR REPAIR. Normal provisions of the formal warranty policy, as applicable, will apply.