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2016 - 2017 Corvette: Service Bulletin: #PIP5330B: Coolant Loss And/Or Coolant Odor

#PIP5330B: Coolant Loss And/Or Coolant Odor - (Jun 15, 2017)

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This PI was superseded to update Engine RPO and modules.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.

Condition/Concern

A vehicle may have a concern with coolant loss and/or coolant odor after driving the vehicle.

Recommendation/Instructions

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.

Warranty Information

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.

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