| “This site contains affiliate links for which OEMDTC may be compensated” |
NHTSA ID Number: 10161033
Manufacturer Communication Number: PIT5688
Summary
This preliminary information was released to advise of an alternate means of purging the air from the cooling system.
10 Affected Products
Vehicles
SEOCONTENT-START
Bulletin No.: PIT5688
Published date: 05/20/2019
Preliminary Information
PIT5688 Diagnostic Tip: Gurgle noise from Heater Core after Performing 19-NA-007
Models
Brand: Model: Model Years:
VIN:
from to
Engine: Transmissions:
Chevrolet Colorado 2015 – 2019 All All
All All GMC Canyon 2015 – 2019
All All All All
Involved Region or Country:
North America
Condition: Gurgle noise from heater core , may persist after
performing 19- NA-007.
Cause: Orientation of the filler cap versus the heater core.
It can be difficult to remove the air from the heater core using the Vac N Fill method because the
radiator cap and heater core are at about the same height. If the noise persists, raise the front of
the vehicle a foot with a hoist, add 400ml coolant to the overflow bottle, remove the radiator cap.
Run the engine for an hour running the throttle up to ~1500 RPM 3 or 4 times during the hour.
Engineering and eSI is reviewing this condition and may replace this information with a bulletin.
Warranty Information
For vehicles repaired under the Bumper-to-Bumper coverage (Canada Base Warranty coverage), use the
following labor operation. Reference the Applicable Warranties section of Investigate Vehicle
History (IVH) for coverage information.
Labor Operation: Description:
Labor Time:
4486028 Purge Air From Heater Core
0.4 hrs.
Version History
Version 1
Created 05/20/2019 – Created on.
SEOCONTENT-END
Bulletin No.: PIT5688
Published date: 05/20/2019
To View or Download this Document Click Here
Loading...
Reload document 
Open in new tab
| “This site contains affiliate links for which OEMDTC may be compensated” |
- 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
- BETTER FORMULA: Our antifreeze coolant solution is free of amines, phosphate, borate, nitrite and silicate
- EXCELLENT PERFORMANCE: This meets the performance requirements of ASTM D3306, D4985 and GMW3420, GM6277M
- 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
- 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
- ACDelco 10-101 DEX COOL (ORANGE)
- Contains A Bittering Agent
- OEM
- Contains a bittering agent
- 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
- Protects vital engine parts for up to 5 years/150,000 miles with Extended Life Formula.
- Includes the Prestone protection package that meets environment and scale protection standards for the cooling system.
- Concentrate formula. Must mix with water (distilled ideal) to the desired mix ratio of EG & water. Can be used for top-off, complete drain and refill or flush and refill of the cooling system.
- All GM vehicles 1995 and newer/GM approved (GMC, Chevrolet, Buick, Cadillac, Pontiac, Saturn, Oldsmobile, Hummer), most Ford vehicles 2011- 2018 (Ford, Lincoln, Mercury) and most Chrysler vehicles 2013 and newer (Ram, Dodge, Jeep, Chrys)
- Contains bitterant
- High-performance, universal automotive antifreeze/coolant with extended life
- Provides effective, long-term corrosion protection for aluminum, brass, cast iron, steel, solder, and copper
- Superior high temperature for aluminum protection, resulting in longer component life
- Silicate-free formula maintains good as new heat transfer, and reduces silicate gel formation in use or in storage
- 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
- 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
- For any product use or product technical questions call 1-800-TEAM-VAL
- PREDILUTED ANTIFREEZE AND COOLANT: Engineered to support any vehicle's engine cooling system to enhance performance and provide protection. This item contains a bittering agent called Denatonium Benzoate.
- PROPRIETARY BLEND: Contains 10X the scale-fighting inhibitors to ensure maximum cooling performance while protecting against scale, corrosion, and other damage
- SUPERIOR CHEMISTRY: Free from 2-EHA, silicate, nitrite, borate, and amines to keep your vehicle functioning in prime condition
- UNIVERSAL FORMULA: Compatible with any color or type of existing antifreeze and coolant in your car's system
- LONG-LASTING: Offers 2X the average warranty coverage, cooling your engine system for over 10 years or 300,000 miles of service
Last update on 2025-05-08 / Affiliate links / Images from Amazon Product Advertising API
This product presentation was made with AAWP plugin.
