PIP5122C

Bulletin No.: PIP5122C
Date: Apr-2015
Subject:
Pop Noise From Fuel Tank After a Cold Start or EVAP Purge Event
Models:
2010 -2015 Chevrolet Equinox
2010-2015 GMC Terrain
This PI was superseded to update Models and Warranty Information. Please discard PIP5122B.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern
Intermittently customers may comment about a pop or multiple popping noise from the rear of the vehicle shortly after a cold start or EVAP purge event.
Recommendation/Instructions
The technician should be able to duplicate the concern by commanding a purge and seal on the EVAP system using GDS2.
As the vacuum reaches 3 to 5 inches, the pop/popping noise should be duplicated. The cause for this concern is the auxiliary fuel module in the left side of the
fuel tank changing height (spring loaded leg).
The part number on the box of the auxiliary fuel module has not changed but the auxiliary fuel module inside of the box has.
After ordering the auxiliary fuel module, remove it from the box and verify the letters "PPA" are cast into the top of the fuel module flange.
This is the revised auxiliary fuel module designed to correct the pop/popping noise. The original auxiliary fuel module has "POM" cast into the flange.
Important: The condition described in this PI applies only to the auxiliary fuel pump module assembly. The Parts Catalog calls this auxiliary pump component
the "sender kit" which is the correct part for this repair. Replacing the primary fuel pump module assembly would NOT correct this noise condition. The parts
catalog calls this primary pump component the "module kit" which is the incorrect part for this repair.
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1.
Flange location of the auxiliary fuel module (sender kit)
2.
Primary Pump NOT the correct component to replace (module kit)
Parts Information
Part Number
Usage
Description
Qty
22755798
2010-2011 Equinox/Terrain LAF & NT7 or NU5
2012-2015 Equinox/Terrain LEA FHO & NT7 or NU5
Module Kit
1
Module Kit
1
22755799
2010 Equinox/ Terrain LF1 & NT7 or NU5
2011-2012 Equinox/Terrain LFW NU5
2015 Equinox/Terrain LEA FHS NT7
2013-2015 Equinox/Terrain LFX FHS
2
2012-
Warranty Information
For vehicles repaired under warranty use:
Labor Operation
Description
Labor Time
4028830
Fuel Tank Fuel Pump Module Replacement - Secondary
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.
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may
occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools,
safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that
your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
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