12313A
Chevrolet technical service bulletin G-171837 for 2010-2011 Chevrolet Equinox, 2010-2011 GMC Terrain and 2011 Buick Regal and others.
- Bulletin number
- G-171837
- Component
- Engine
- Summary
- 12313A - Special Coverage (revised part information). The chrome layer on the balance chain pins may wear, allowing the chain to stretch. This would cause an engine noise, and if left untreated, could cause the chain to break, leading to engine damage. In addition, the fuel pump plunger shaft seal may wear and allow fuel to leak into the crankcase, setting P0172 DTC, and illuminating the Malfunction Indicator Light. This can cause engine run-on and/or the engine to run rough. If this condition occurs within the stated terms, dealers will replace the engine balance chain and fuel pump.
Owners of these vehicles have filed 1,232 complaints in the engine category.
Vehicles covered
- Chevrolet Equinox 2010-2011 20102011
- GMC Terrain 2010-2011 20102011
- Buick Regal 2011 2011
- Buick Lacrosse 2010-2011 20102011
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