If the coolant is low pressure test the cooling system looking for leaks at the outer head bolts. See below:
If a leak is found the head with the concern will need to be replaced.
| Subject: | Coolant Loss And/Or Coolant Odor |
|
Brand: |
Model: |
Model Year: |
VIN: |
Engine: |
Transmission: | ||
|---|---|---|---|---|---|---|---|
|
from |
to |
from |
to | ||||
|
Cadillac |
CTS-V |
2016-2017 |
All |
All |
6.2L LT4 |
All |
|
|
Cadillac |
Escalade |
2015-2017 |
All |
All |
6.2L L86 |
All |
|
|
Chevrolet |
Camaro |
2016-20117 |
All |
All |
6.2L LT1 LT4 |
All |
|
|
Chevrolet |
Corvette |
2016-2017 |
All |
All |
6.2L LT1 LT4 |
All |
|
|
Chevrolet |
Silverado |
2014-2017 |
All |
All |
4.3L 5.3L 6.2L LV3 L83 L86 |
All |
|
|
Chevrolet |
Suburban |
2015-2017 |
All |
All |
5.3L L83 |
All |
|
|
Chevrolet |
Tahoe |
2015-2017 |
All |
All |
5.3L L83 |
All |
|
|
GMC |
Sierra |
2014-2017 |
All |
All |
4.3L 5.3L 6.2L LV3 L83 L86 |
All |
|
|
GMC |
Yukon |
2014-2017 |
All |
All |
5.3L 6.2L L83 L86 |
All |
|
Supersession Statement:
This PI was superseded to update Engine RPO and modules. Please discard PIP5330A.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
A vehicle may have a concern with coolant loss and/or coolant odor after driving the vehicle.
If the coolant is low pressure test the cooling system looking for leaks at the outer head bolts. See below:
If a leak is found the head with the concern will need to be replaced.
For vehicles repaired under warranty use:
|
Labor Operation |
Description |
Labor Time |
|---|---|---|
|
4061770 |
Cylinder Head Replacement - Right Side |
Use Published Labor Operation Time |
|
4061790 |
Cylinder Head Replacement - Left Side |
Use Published Labor Operation 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.
Article ID: 1370
Created: June 19, 2017
Last Updated: June 19, 2017
Author: Rob Loszewski
Online URL: https://www.corvetteactioncenter.com/tech/knowledgebase/article.php?id=1370