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Chevrolet 12643296 Hose, Pcv

2013-2014 Chevrolet

Customer Questions & Expert Answers (3)
GM 12643296 Hose, Pcv
  • Part Description
    HOSE, Engine Crankcase Ventilation
  • Replaces
    12605456, 12598189
  • Manufacturer
    General Motors
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  • Related Parts
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers
  • Product Specifications

    BrandGenuine Chevrolet
    Manufacturer Part Number12643296
    Part DescriptionHOSE, Engine Crankcase Ventilation
    Other NamesPCV Hose, PCV Tube
    Item Dimensions3.4 x 0.9 x 0.7 inches
    Item Weight0.40 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces12605456, 12598189
    ManufacturerGeneral Motors
    SKU12643296
    WarrantyThis genuine GM part is guaranteed by GM's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65
  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    2014 Chevrolet Impala4 Cyl 2.4LLS 4 DOOR NOTCHBACK, LT 4 DOOR NOTCHBACK
    2013-2014 Chevrolet Malibu4 Cyl 2.4LLT 4 DOOR NOTCHBACK
  • Customer Questions & Expert Answers

    Q:
    I am wonder if this is complete and correct part for my vehicle. Posted by GMPartsGiant Specialist
    A:
    You can Select Your Vehicle to check if 12643296 fits your vehicle.
    Posted by GMPartsGiant Specialist
    Q:
    How to Inspect and Maintain Hoses, Fuel Lines, and PCV Valve Hose on Pontiac G6? Posted by Customer
    A:
    High temperatures under the hood can cause deterioration of rubber and plastic hoses used for engine, accessory, and emission systems operation, necessitating periodic inspection for cracks, loose clamps, material hardening, and leaks. Most hoses are secured with clamps, which should be checked for tension to prevent leaks; if clamps are absent, ensure the hose has not expanded or hardened at the fitting. To reduce hydrocarbon emissions, crankcase blow-by gas is vented through the PCV valve to the intake manifold via a rubber hose, which should be inspected for cracks and obstructions. Vacuum hoses, often color-coded, require attention to wall thickness and material when replacing, and should be completely removed for effective inspection, including any plastic T-fittings. A small piece of vacuum hose can be used to detect leaks by listening for hissing sounds. Fuel lines, usually under pressure, should be checked for deterioration, especially at bends and fittings, and only hoses designed for the specific fuel injection system should be used for replacements. Spring-type clamps on fuel lines may lose tension and should be replaced with screw clamps, while metal lines must be inspected for bends or cracks, and any replacements should use seamless steel tubing. Additionally, metal brake lines should be checked for cracks and loose fittings, with any brake fluid leakage requiring immediate inspection of the brake system.
    Posted by GMPartsGiant Specialist
    Q:
    What is the Role of the PCV System in Reducing Hydrocarbon Emissions and How Do You Inspect and Replace PCV Valve Hose on Pontiac G6? Posted by Customer
    A:
    The Positive Crankcase Ventilation (PCV) system is a very important in minimizing hydrocarbon emission by evacuation of crankcase full of unburned hydrocarbon fumes. On a four cylinders the system comprises a single crankcase ventilation hose that sucks in crankcase vapors through the vent housing installed on the under part of the valve cover and then channeling the vapors into the air intake duct before entering the combustion chambers. For V6 models, there is a fixed orifice on the front valve cover; two hoses control the air fresh and crankcase vapor with regard to intake manifold vacuum. Deterioration of PCV system is not good for the engine; therefore, one should check the hoses for the crack or any obstruction and to clean or replace as the case may be. Approxations of both of these problems may include a rough idle as well as stalling, or the presence of oil leaks, and in interpretation of a leakage sign, there may be rough running or high idle speed. A functional check on V6 models involves a removal of the end of PCV hose, the starting of the engine and checking for vacuum. In case of a higher crankcase pressure that is above the expected limit then it is advised to be checked by an expert. In cases of heavy sludge or oil dilution, more tests are required. In case of component exchange, it requires removal of hoses and conditioning or replacement of vent housing, fixed orifice, however, vent housing is molded in the valve cover and cannot be replaced independently.
    Posted by GMPartsGiant Specialist
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

Genuine GM Part 12643296, the Right Choice

To ensure reliability, purchase GM part # 12643296 Hose, Pcv. It is sometimes referred to as Chevrolet Crankcase Breather Hose, Chevrolet PCV Valve Hose. Directly from GM, genuine parts are superb with regards to quality, longevity, and fit. Every single part passed stringent quality testing, so you can be sure that it's safe, durable, and built to perform like your original parts. This part fits specific Chevrolet Impala, Malibu models.

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