| Subject: WATER PUMP COOLANT LEAK | Bulletin No: 01-016/16 |
| Last Issued: 08/26/2016 |
BULLETIN NOTE
This bulletin supersedes the previously issued bulletin(s) listed below: The changes are noted in Red beside the change bars.
| Previously issued TSBs: | Date issued: |
| 01-004/09 | 02/03/2009 |
APPLICABLE MODEL(S)/VINS
| 2004-2017 Mazda3 | 2016-2017 Mazda CX-3 | 2007-2017 Mazda CX-9 |
| 2006-2015 Mazda5 | 2013-2017 Mazda CX-5 | 2004-2005 Mazda Miata |
| 2003-2017 Mazda6 | 2007-2012 Mazda CX-7 | 2006-2017 Mazda MX-5 |
DESCRIPTION
There is a concern that some water pumps are being replaced that are not faulty, due to signs of a very small coolant leak from the bleed hole. This Service Bulletin is to inform you about the water pump sealing mechanism and the criteria if replacement is necessary or not.
| Normal Water Pump coolant seepage | |
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A mechanical seal (A) is used for the water pump. This mechanical seal can seal coolant (B) by sliding a mating ring (C) against a seal ring (D). When the sliding surface temperature of the mechanical seal is more than 248 °F (120 °C) while driving, a small amount of steam (E) is leaked and bleeds through the bleeding hole (F). After drying, the steam leaves a green coolant deposit near the water pump bleed hole (F). This is a normal condition and does not require water pump replacement. The water pump should only be replaced if there is an accumulation of crystallized coolant near the bleed hole.
| Bleed hole (F) is located under water pump | Dried coolant steam shows as green-color deposit at bleed hole. |
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| Water Pump Samples: | |
|
GOOD No accumulation of crystallized coolant. DO NOT replace the water pump. |
NG Accumulation of crystallized coolant near the bleed hole (F). Replace the water pump. |
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REPAIR PROCEDURE
- Verify customer concern.
- Verify repair.
01-016-16-3220
01-016/16
- Unsurpassed freeze protection and anti-boil performance outperforms industry standards
- Phosphate additives safeguard against corrosion, scale and rust while protecting all cooling system metals (including aluminum)
- High-quality additives protect against leaks and won’t harm gaskets, hoses, plastics or original vehicle finish
- Pre-mixed green formula is ready-to-use in a 50/50 ratio with deionized water to protect all modern engine components from winter freezing (-34F) and summer boiling (265F).
- 5 year/150,000 mile guarantee protects against engine failure caused by freeze-ups or boil-overs
- Includes patented Prestone CorGuard technology
- Provides Extreme Temperature Protection from the worst of winter deep freezes and scorching summer heat.
- Helps a vehicle's cooling system run more efficiently and last longer
- Contains Bitterant
- 5 year/150, 000 mile . Silicate-free, long-life, phosphate Hybrid Organic Acid Technology chemistry
- Formulated to replace the OEM fluid in Asian make vehicles such as Honda, Nissan, KIA, Hyundai and others requiring a blue, silicate free HOAT antifreeze/coolant
- The long life formula provides protection for all cooling system metals from rust and corrosion. The silicate free, borate free formula helps protect against harmful scale and deposits
- Meets the following OEM and industry specifications: Hyundai/KIA MS 591-08, Mitsubishi ES-64217, JIS K 2234-1994, Ford WSS-M97B55-A, ASTM 3306, ASTM D4985, Federal Specification A-A-870A
- Contains 30 – 50 ppm of denatonium benzoate as a bittering agent
- 1 GALLON ENGINE ANTIFREEZE/COOLANT: Fully compatible with other extended life antifreeze/coolants. This item contains a bittering agent called Denatonium Benzoate.
- PROTECTS: Advanced formulation prevents rust & corrosion protecting all engine cooling system components
- DESIGNED FOR ASIAN VEHICLES: Recommended for use with Hyundai, Kia, Genesis, Infiniti, Nissan, Mazda, Mitsubishi, Subaru, and Suzuki vehicles that require a GREEN Phosphate-enhanced Organic acid technology (POAT) formula
- GUARANTEED: When installed as part of a complete flush and fill, PEAK guarantees this coolant will provide service life protection of up to 400,000 miles or 15 years.
- 50/50 PREDILUTED FOR QUICK TOP OFFS: Already diluted to make topping off your cooling system a breeze
- 1 GALLON ENGINE ANTIFREEZE/COOLANT: Fully compatible with other extended life antifreeze/coolants. This item contains a bittering agent called Denatonium Benzoate.
- PROTECTS: Advanced formulation prevents rust & corrosion protecting all engine cooling system components
- DESIGNED FOR ASIAN VEHICLES: Recommended for use with Hyundai, Kia, Genesis, Infiniti, Nissan, Mazda, Mitsubishi, Subaru, and Suzuki vehicles that require a GREEN Phosphate-enhanced Organic acid technology (POAT) formula
- GUARANTEED: When installed as part of a complete flush and fill, PEAK guarantees this coolant will provide service life protection of up to 400,000 miles or 15 years.
- CONCENTRATED FORMULA: Ideal for flushing, filling, or topping off your cooling system
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