PIP4859E

Service Bulletin Details

Public Details for: PIP4859E

This preliminary information communication provides information to the technician on the steps to vacuum fill to ensure the cooling system is properly filled. Technician will need to use special tool ge-47716 vac-n-fill coolant refill tool.


- 2016 - 2015 - 2014 - 2013 - 2012 - 2011 -

Models from 2016
2016 CADILLAC ELR
Bulletin No.: PIP4859E
Published date: 03/1/2019
Preliminary Information
PIP4859E (EREV Volt) Vacuum Coolant Fill Information
Models
Brand:
Model:
Model Years:
VIN:
from
to
Engine:
Transmissions:
Chevrolet
Volt
2011 - 2015
All
All
LUU
MKA
Cadillac
ELR
2014 - 2016
All
All
LUU
MKA
Opel
Ampera
2012 - 2014
All
All
LUU
MKA
Supersession Statement
This PI was superseded to update Model Years. Please discard PIP4859D.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition / Concern
When preforming ANY cooling system repairsor component replacement that requires opening any
one of the Chevrolet Volt's cooling systems it will be necessary touse a vacuum fill procedure to
ensure the cooling system is properly filled.
Recommendations / Instructions
Make sure to follow published SI procedures when refilling any one or all of the vehicles cooling
systems.
All cooling systems require a vacuum fill procedure using GE-47716 V
ac-N-Fill Coolant Refill Tool or
equivalent.
Failure to properly fill the cooling systems can cause overheating, DTC's, loss of charging, noises
and or misdiagnosis.
After filling the battery cooling system,it will be necessary to follow the procedure below to purge
air from the RESS system:
Use Vac-N-Fill procedure to pre-fillto pack with coolant and only after initial coolant fill initiate
coolant bleed procedure.
Important: Draining of the cooling system or replacement of any drive motor battery cooling
system
parts requires the actuation of the Hybrid/EV Battery a
Pck Coolant Pump Bleed Procedure in the
GDS2 tool.
Place vehicle in Service Mode. With the GDS scan tool, initiate the hybrid/EV battery pack coolant
pump bleed procedure while maintaining381 mm (15 in Hg) vacuum throughout the process.
This procedure will take about one hour to complete.
During this coolant procedure you willneed to maintain sufficient coolant in reservoir as air is
purged.
After performing the GDS2 coolant bleedprocedure drive vehicle for approximately 5 miles in a
slalom type of situation (side to side motion) to purge any remaining
air from battery pack cooling
plates.
Check for DTCs, clear if necessary and top off coolant system.
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.
Additional SI Keywords
1.4 1.4L board charge CHCM engine uid heat heater leak LUU module noise OBCM on PIM pop rattle valve
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