NHTSA ID Number: 10161919
Manufacturer Communication Number: K27230737
Summary
Mack
Chassis – Granite Models (GU, GR) – Revised Fan Ring Design; Engine Cooling Fan Ring Cracked At Welds – Model Years 2016 To 2020
5 Affected Products
Vehicles
Solution K27230737
Monday, June 3, 2019 7:26:44 PM CEST
| ** SOLUTION ** | ||||||||||
| Title | Mack Chassis – Granite Models (GU, GR) – Revised Fan Ring Design; Engine Cooling Fan Ring Cracked At Welds – Model Years 2016 To 2020 | |||||||||
| Mack Models | ||||||||||
| Mack Model | GR – Granite, GU – Granite | |||||||||
| Emission Standard | ||||||||||
| Emission Standard | US14+OBD15, US14+OBD16, US17, US17+OBD16, US17+OBD18 | |||||||||
| Engine family | ||||||||||
| Engine family | MP7, MP8 | |||||||||
| ** SOLUTION ** | ||||||||||
| Cause | The engine cooling fan ring on Granite chassis built during model years 2016 through early 2020 may crack at its welds.
Analysis has revealed that the symptom occurs due to a lack of contact between the rubber seal attached to the fan ring and the fan shroud. This can lead to increased vibration of the fan ring, as the rubber seal serves as a vibration dampener as well as airflow direction. | |||||||||
| Solution | Affected date ranges: 2 June 2014 (W1423) – 24 June 2019 (W1921)
A new fan ring design has been released to address the vibration. The revised fan rings have been designed with a larger rubber seal that contacts the fan shroud and is able to effectively dampen vibration of the ring. Part numbers for the new fan ring design can be found below:
| |||||||||
| Internal comments (BO) | Projected release date of 3/11/19 | |||||||||
| Solution visibility | Dealer distribution | |||||||||
| Function(s)/component(s) affected | ||||||||||
| Function affected | engine cooling fan | |||||||||
| Function Group | ||||||||||
| Function Group | 263 fan, fan shroud and clutch | |||||||||
| Customer effect | ||||||||||
| Main customer effect | vibration, visual appearance | |||||||||
| Visual appearance | crack/fracture | |||||||||
| Conditions | ||||||||||
| Frequency of occurrence of problem | random | |||||||||
| Administration | ||||||||||
| Author | RU4467V | |||||||||
| Dealer ID | RU4467V | |||||||||
| Last modified by | A241298 | |||||||||
| Creation date | 02-11-2018 14:11 | |||||||||
| Date of last update | 30-05-2019 13:05 | |||||||||
| Review date | 04-02-2019 00:02 | |||||||||
| Status | Published |
Solution K27230737
Monday, June 3, 2019 7:26:44 PM CEST
SaleBestseller No. 1
Zerex Asian Vehicle Red Silicate and Borate Free 50/50 Prediluted Ready-to-Use Antifreeze/Coolant 1 GA
- Formulated to replace the OEM fluid in Asian make vehicles such as Toyota , Lexus , Scion and others requiring a red, silicate free HOAT antifreeze/coolant
- 5 year/150, 000 mile . Silicate-free, long-life, phosphate Hybrid Organic Acid Technology chemistry
- 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: JIS K 2234-1994, Hyundai/KIA MS 591-08, Mitsubishi ES-64217, Ford WSS-M97B55-A, ASTM 3306, ASTM D4985, Federal Specification A-A-870A
- Note: Please check the vehicle specification before purchasing the item.
SaleBestseller No. 2
Zerex Asian Vehicle Blue Silicate and Borate Free 50/50 Prediluted Ready-to-Use Antifreeze/Coolant 1 GA
- 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
Bestseller No. 3
Honda Genuine Extended Life Antifreeze/Coolant Type 2, 50/50 Pre-Diluted, 1 Gallon
- Genuine Honda Type 2 Long-Life Blue Coolant, pre-mixed 50/50 (ready to use)
- Protects metal and non-metal cooling system parts against corrosion and rust
- Freeze protection and boil-over resistance for extreme temperature performance
- Replaces part number OL999-9011 - matches factory fill for Honda systems requiring Type 2 coolant
- Long service life — up to 5 years or ~60,000 miles under normal conditions
Bestseller No. 4
PEAK OET Extended Life Blue 50/50 Prediluted Antifreeze/Coolant for Asian Vehicles, 1 Gal.
- 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 Acura, Honda, Infiniti, Mitsubishi, Nissan, Subaru, and Suzuki vehicles that require a BLUE 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 150,000 miles or 5 years.
- 50/50 PREDILUTED FOR QUICK TOP OFFS: Already diluted to make topping off your cooling system a breeze
Bestseller No. 5
PEAK Global Lifetime Concentrate Antifreeze and Coolant for All Vehicles, 1 Gal.
- CONCENTRATE ANTIFREEZE AND COOLANT: Efficient formula is compatible with all vehicle cooling systems, providing fast-acting and long-lasting protection on all cooling system metals against rust and corrosion
- NON-ABRASIVE FORMULA: Created with Organic Acid Technology, this ethylene glycol-based coolant formula is compatible with other antifreeze and coolant formulations. This item contains a bittering agent called Denatonium Benzoate.
- ALL VEHICLE: Versatile and formulated for use in all American, Asian, and European automobiles including cars and low/medium to heavy duty trucks of all makes, models, and years
- SAFE FOR FILLS AND TOP-OFFS: The amber color will not effect the antifreeze currently in your cooling system
- LIFETIME PERFORMANCE: Provides cooling system protection for your automobile's entire lifetime with proper maintenance
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