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NHTSA ID Number: 10096234
Manufacturer Communication Number: PIT5491
Summary
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR VEHICLE WITH POOR HEAT. TECHNICIAN WILL REMOVE THE TEMPERATURE ACTUATOR AND INSPECT FOR CRACKS. IF THE SHAFT IS CRACKED IN ONE PLACE, INSTALL A #4 HOSE CLAMP OVER THE TEMPERATURE VALVE SHAFT. IF THE SHAFT IS CRACKED IN MORE THAN ONE PLACE OR A PIECE IS MISSING, THE TEMPERATURE VALVE MUST BE REPLACED.
4 Affected Products
Vehicles
Parts
SEOCONTENT-START
Bulletin No.: PIT5491
Date: Feb-2016
| Subject: | Poor Heater Performance |
| Models: | 2015-2016 Chevrolet Colorado |
| 2015-2016 GMC Canyon |
Condition/Concern
The customer may state the heater blows cold air. The technician may find that relearning the HVAC doors may eliminate this concern for a short time. Upon inspection the technician may find a cracked or broken shaft on the temperature valve.
Recommendation/Instructions
Remove the temperature actuator and inspect for cracks. If the shaft is cracked in one place, install a #4 hose clamp over the temperature valve shaft as shown below. It is not necessary to remove the door to add the clamp. If the shaft is cracked in more than one place or a piece is missing, the temperature valve must be replaced.
Parts Information
| Part Number | Description | Qty |
23135682 |
Temperature Valve | 1 |
Warranty Information
For vehicles repaired under warranty use:
| Labor Operation | Description | Labor Time |
| 4480398* | Install Clamp On Temperature Valve Shaft | 0.3 hr |
| * This is an unique labor operation for bulletin use only. | ||
| Labor Operation | Description | Labor Time |
| 4411520 | Replace Temperature Valve | Use Published Labor Time |
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
SEOCONTENT-END
Bulletin No.: PIT5491
Date: Feb-2016
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Bestseller No. 1
Zerex Dex-Cool Organic Acid Technology 50/50 Ready-to-Use Antifreeze/Coolant 1 GA
- Unsurpassed freeze protection and anti-boil performance outperforms industry standards
- Organic acid technology resists rust, scale & corrosion 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 orange 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
SaleBestseller No. 2
Zerex Valvoline Dex-Cool Organic Acid Technology Concentrate Antifreeze/Coolant 1 GA
- Unsurpassed freeze protection and anti-boil performance outperforms industry standards
- Organic acid technology resists rust, scale & corrosion 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
- Orange concentrate formula should be mixed with clean tap water or demineralized water at 50/50 ratio for temperatures -34 to 265F; 60/40 for -62 to 270F; and 70/30 for -84 to 267F
- 5 year/150,000 mile guarantee protects against engine failure caused by freeze-ups or boil-overs
SaleBestseller No. 3
ACDelco 10-101 DEX-COOL Extended Life Coolant - 1 Gallon
- ACDelco 10-101 DEX COOL (ORANGE)
- Contains A Bittering Agent
- OEM
Bestseller No. 4
PEAK DEX-Cool® Antifreeze + Coolant, Premium Engine Coolant with Antifreeze, Car Antifreeze Coolant Mixture for GM Vehicles, 1 Gallon
- VERSATILE ENGINE COOLANT: This antifreeze + coolant is designed for use in all GM vehicles 1995 and newer requiring an orange organic acid technology (OAT) coolant. This item contains a bittering agent called Denatonium Benzoate.
- PROTECTS ENGINE: This antifreeze + coolant provides protection against rust and corrosion for all cooling system metals, including aluminum
- LONG-LASTING COOLANT: This antifreeze + coolant has a service life of up to 5 years/150,000 miles with a complete cooling system flush and fill
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Bestseller No. 5
General Motors ACDelco DEX-Cool Coolant Antifreeze - 12346290 OEM New
- Contains a bittering agent
SaleBestseller No. 6
ShellZone Dex-Cool Extended Life ELC Antifreeze + Coolant, Pre-Diluted 50/50 (1 Gallon, Single Pack)
- High-performance, universal automotive antifreeze/coolant with extended life
- Provides effective, long-term corrosion protection for aluminum, brass, cast iron, steel, solder, and copper
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- Suitable for a 5-year or 150,000 mile service life in automotive applications; up to of 600,000 miles or 12,000 hours in heavy duty applications
Bestseller No. 7
Valvoline Zerex DEX-Cool Organic Acid Technology 50/50 Ready-to-Use Antifreeze/Coolant 1 GA (Pack of 2)
- The information below is per-pack only
- ZEREX DEX-COOL antifreeze coolant is approved by General Motors to the GM 6277M specification
- ZEREX DEX-COOL antifreeze coolant contains no phosphates, silicates, borates, nitrates, amines and nitrites
- Valvoline ZEREX DEX-COOL antifreeze coolant is a patented carboxylate formulation with a service life of up to five years or 150,000 miles
- When diluted 50percent with water, ZEREX DEX-COOL protects modern engine components from winter freezing and summer boiling
Bestseller No. 8
Zerex Valvoline DEX-Cool Organic Acid Technology 50/50 Prediluted Ready-to-Use Antifreeze/Coolant 1 GA, Case of 6
- ZEREX DEX-COOL antifreeze coolant is approved by General Motors to the GM 6277M specification
- ZEREX DEX-COOL antifreeze coolant contains no phosphates, silicates, borates, nitrates, amines and nitrites
- Valvoline ZEREX DEX-COOL antifreeze coolant is a patented* carboxylate formulation with a service life of up to five years or 150,000 miles
- When diluted 50% with water, ZEREX DEX-COOL protects modern engine components from winter freezing and summer boiling
- ZEREX DEX-COOL antifreeze coolant is storage stable for up to five years as both a concentrate or diluted with water
Bestseller No. 9
Zerex DEX-COOL Organic Acid Technology Concentrate Antifreeze/Coolant 1 GA, Case of 6
- ZEREX DEX-COOL antifreeze coolant is approved to the GM 6277M specification
- ZEREX DEX-COOL antifreeze coolant contains no phosphates, silicates, borates, nitrates, amines and nitrites
- Valvoline ZEREX DEX-COOL antifreeze coolant is a patented* carboxylate formulation with a service life of up to five years or 150,000 miles
- When diluted 50% with water, ZEREX DEX-COOL protects modern engine components from winter freezing and summer boiling
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Bestseller No. 10
PEAK OET Extended Life Orange 50/50 Prediluted Antifreeze/Coolant for North American 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 NORTH AMERICAN VEHICLES: Recommended for use with Ford, Chrysler, and GM vehicles that require an orange organic acid technology formula
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