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NHTSA ID Number: 10151831
Manufacturer Communication Number: PIT5420F
Summary
This Preliminary Information communicates information to the technician about vehicles that may have a water rush or gurgle type noise from the center dash area. Engineering is aware of the concern and it is under investigation. Inspect the system for coolant leaks and proper coolant level. No other repairs are to be performed at this time.
10 Affected Products
Vehicles
SEOCONTENT-START
Bulletin No.: PIT5420F
Published date: 11/13/2018
Preliminary Information
PIT5420F Water Rush or Gurgle Noise from Heater Core
Models
| Brand: | Model: | Model Years: | VIN: | Engine: | Transmissions: | |
| from | to | |||||
| Chevrolet | Colorado | 2015 – 2019 | All | All | All | All |
| GMC | Canyon | 2015 – 2019 | All | All | All | All |
Supersession Statement
This PI was superseded to update model years. Please discard PIT5420E.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition / Concern
The customer may note a water rush or gurgle type noise from the center dash area.
The technician may isolate this noise to the heater core caused by air in the cooling system.
This can be caused by air ingestion in the cooling system. This is under evaluation by engineering.
Recommendations / Instructions
Pending release of new surge bottle.
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.: PIT5420F
Published date: 11/13/2018
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Bulletin No.: PIT5420E
Published date: 02/12/2018
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Bulletin No.: PIT5420D
Published date: 08/11/2017
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Bulletin No.: PIT5420D
Published date: 08/11/2017
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Bulletin No.: PIT5420C
Published date: 07/7/2017
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Bulletin No.: PIT5420B
Date: Aug-2016
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Bulletin No.: PIT5420
Date: May-2015
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