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GM 25043843
PCV Valve

1985-2010 GM

Customer Questions & Expert Answers (23)
GM 25043843 PCV Valve
GM 25043843 PCV Valve
GM 25043843 PCV Valve
  • Part Description
    Valve, PCV; Crankcase Vent Valve
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • 2001 Pontiac Aztek PCV Valve Diagram for 25043843
    The diagram listed above is for your reference. View diagram for your vehicle

    Related Parts for 25043843

  • Vehicle Fitment

    Year Make Model Trim Engine
    1994-2005, 1987-1989 Buick CenturyCustom, Estate Wagon, Limited, Special, Special Edition6 Cyl 2.8 L GAS, 6 Cyl 3.1 L GAS, 6 Cyl 3.3 L GAS
    2000-2005, 1992 Buick LeSabreCustom, Limited6 Cyl 3.8 L GAS
    1991-2005 Buick Park AvenueBase, Ultra6 Cyl 3.8 L GAS
    1988-2004 Buick Regal25th Anniversary Edition, Custom, Gran Sport, GS, GSE, Limited, LS, LSE, Olympic Gold Edition6 Cyl 2.8 L GAS, 6 Cyl 3.1 L GAS, 6 Cyl 3.8 L GAS
    2002-2005 Buick RendezvousCX, CX Plus, CXL, CXL Plus6 Cyl 3.4 L GAS
    1995-1999, 1992-1993 Buick RivieraBase, Luxury6 Cyl 3.8 L GAS
    1987 Buick SkyhawkCustom, Limited, Sport, T-Type4 Cyl 2.0 L GAS
    1994-1998 Buick SkylarkCustom, Gran Sport, Limited, Olympic Gold Edition6 Cyl 3.1 L GAS
    1987 Cadillac CimarronBase6 Cyl 2.8 L GAS
    1992-1993 Chevrolet AstroBase, CL, CS, LT6 Cyl 4.3 L GAS
    View More
    Warning: California's Proposition 65

  • Customer Questions & Expert Answers

    Q:
    Can you help me check if this 25043843 is the right part for my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 25043843 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the PCV Valve (L36) on Buick LeSabre? Posted by Customer
    A:
    The first step to replace positive crankcase ventilation (PCV) valve (L36) includes removing the fuel injector sight shield before taking out the MAP Sensor. Turn the 16 mm (5/8 inch) socket to press down on the access cover then rotate it a quarter turn to the counterclockwise direction before pulling it off. The process starts with unfastening the PCV Valve while removing its o-ring from Intake Manifold positioning. You must place the Intake Manifold's PCV Valve along with o-ring followed by attachment of the access cover. The installation order needs you to replace the MAP Sensor and conclude with the fuel injector sight shield.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the PCV Valve on Buick Century? Posted by Customer
    A:
    The first step to replace the Positive Crankcase Ventilation (PCV) valve is to pull off the vacuum hoses from the fuel pressure regulator and the PCV valve , then take out the PCV valve . Place the new PCV valve in your engine, then connect the vacuum hoses to each of the fuel pressure regulator and the PCV valve .
    Posted by ChevyPartsGiant Specialist
    Q:
    How to service and repair the PCV Valve on Buick Century? Posted by Customer
    A:
    A technician must disconnect three vacuum hoses from their respective valves. After this step, the PCV Valve can be removed easily. To install the new PCV Valve position it correctly before securing the vacuum hoses to the Fuel Pressure Regulator and PCV Valve simultaneously.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to service the PCV Valve on Buick LeSabre? Posted by Customer
    A:
    Service of the positive crankcase ventilation valve requires fuel injector sight shield and MAP Sensor removal before proceeding with the next steps. The 16 mm socket allows you to depress and turn the access cover 1/4 turn counterclockwise to extract it. Take out the PCV Valve combined with the o-ring from the Intake Manifold after completing this task. Return the PCV Valve together with the o-ring into the Intake Manifold before reinstalling the access cover . Then install the MAP Sensor and complete the repair with the fuel injector sight shield.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the PCV Valve on Buick Regal? Posted by Customer
    A:
    The replacement process for positive crankcase ventilation (PCV) valve begins with fuel injector sight shield removal followed by disconnecting the MAP Sensor electrical connector then removing the MAP Sensor. Position the access cover downwards using a 16 mm (5/8 inch) socket then rotate it counterclockwise 1/4 turn to eliminate it. You need to remove the PCV Valve together with its o-ring from the Intake Manifold. First step for installation is to add the new o-ring and the PCV Valve before putting on the access cover . The complete procedure includes reinstalling the MAP Sensor while reconnecting its electrical connector before putting back the fuel injector sight shield.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the PCV Valve on Buick Rendezvous? Posted by Customer
    A:
    The first step in PCV Valve replacement requires disconnecting the vacuum hose from this valve while removing it from service. Install the positive crankcase ventilation valve first before connecting its vacuum hose to the valve.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to Service and Repair the PCV Valve on Buick Regal? Posted by Customer
    A:
    The positive crankcase ventilation (PCV) valve replacement starts with removing the fuel injector sight shield after disconnecting the MAP Sensor electrical connector and removing the MAP Sensor. A 16 mm (5/8 inch) socket should be used to push down the access cover then rotate it one quarter turn in the counterclockwise direction before removing it. Before proceeding with the replacement remove the PCV Valve along with its o-ring from the Intake Manifold. Begin by positioning both the PCV Valve along with the new o-ring before installing the access cover . The installation process involves first reinstalling the MAP Sensor before reinstalling its electrical connector and ending the operation by putting on the fuel injector sight shield.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to service the PCV Valve on Chevrolet Camaro? Posted by Customer
    A:
    Start the Positive Crankcase Ventilation Valve service by using fingers to hold down the valve cover and then remove its two retaining bolts. You must first remove the PCV valve cover before proceeding to take out the PCV valve alongside its spring and O-ring component. Reinstall the PCV valve followed by its spring and O-ring in their original position during installation. Readers need to pay attention to the service precaution notice that appears in the Fastener section. You should install the PCV valve cover along with a new gasket if required before you start the hand-driven bolts by two. Secure the two cover retaining bolts at 12 N.m (106 lb in).
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the PCV Valve on Chevrolet Equinox? Posted by Customer
    A:
    The PCV valve and its valve rocker arm cover operate as one unit so they must be replaced together. Proceed to remove first the left valve rocker arm cover followed by unscrewing all screws from the PCV baffle before taking out the PCV baffle. Evaluating the necessity to clean the PCV valve leads to replacement of the valve cover when needed. Installation starts with placing the PCV baffle into position before using the Fastener Notice from Service Precautions to secure the PCV baffle screws at 6 Nm (53 inch lbs.). Complete the installation process by fitting the left valve rocker arm cover at its specified position.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the PCV Valve on Chevrolet Impala? Posted by Customer
    A:
    The Positive Crankcase Ventilation (PCV) Valve replacement requires you to unplug vacuum hoses from the fuel pressure regulator as well as positive crankcase ventilation valve before removing the positive crankcase ventilation valve. The installation process requires users to install the positive crankcase ventilation valve while connecting vacuum hoses to fuel pressure regulator and positive crankcase ventilation valve .
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the PCV Valve on Chevrolet Malibu? Posted by Customer
    A:
    Prior to installing or replacing the Positive Crankcase Ventilation (PCV) Valve beginners must disconnect the vacuum hose from the positive crankcase ventilation valve before proceeding to detach the valve. The positive crankcase ventilation valve installation requires both steps of valve positioning and attaching the vacuum hose to the valve.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to Service and Repair the PCV Valve on Chevrolet Malibu? Posted by Customer
    A:
    You should begin by switching OFF the vehicle's ignition. Use your hands to take out both vacuum hoses and the valve. Install the new positive crankcase ventilation valve, then connect both ends of the vacuum hoses into place.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to properly service and replace the PCV Valve on a Chevrolet Impala? Posted by Customer
    A:
    The replacement process of the positive crankcase ventilation (PCV) valve requires step one to be the removal of the fuel injector sight shield followed by disconnecting the MAP Sensor electrical connector and dismantling the MAP Sensor. The 16 mm (5/8 inch) socket must press down the access cover which can then be turned counterclockwise by 1/4 turn to remove it. Start by removing the PCV Valve accompanied by its o-ring from the Intake Manifold. The first step is to install the new o-ring together with the PCV Valve in their designated positions and to then put back the access cover. After replacing the MAP Sensor install it with correct electrical connector connection before you put the fuel injector sight shield back into place.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the PCV Valve on Chevrolet Monte Carlo? Posted by Customer
    A:
    Start by taking off the vacuum lines attached to the fuel pressure regulator and the PCV valve to replace the PCV valve. Now, get the PCV valve out of the system. Place the fresh PCV valve at the right spot and then put the vacuum hoses back onto the fuel pressure regulator and PCV valve .
    Posted by ChevyPartsGiant Specialist
    Q:
    What precautions should be taken when replacing the PCV Valve on Chevrolet Venture? Posted by Customer
    A:
    The positive crankcase ventilation (PCV) valve requires complete replacement alongside the valve rocker arm cover because they come as a single assembly. As a first step you need to take off the left valve rocker arm cover. Cleaning the non-defective PCV valve can replace the need for rocker arm cover replacement. To proceed with the PCV valve cleaning process first detach its screws from the PCV baffle. The valve cover requires a new replacement when the PCV valve becomes defective or when cleaning proves ineffective. You must employ the right fasteners at their proper positions based on specified part numbers for installation. The service procedure specifies which fasteners need replacement as well as the appropriate usage of thread locking compounds and sealants. The use of paints and lubricants together with corrosion inhibitors must be avoided on fasteners and their joint surfaces because they can alter torque settings and clamping force and possibly harm the fastener. The correct fastening procedures with their specific sequences should be followed to prevent damage to components and subsystems. The service procedure calls for assembly of the PCV baffle before securing its screws at 6 Nm (53 lb in). Finally install the left valve rocker arm cover.
    Posted by ChevyPartsGiant Specialist
    Q:
    What is the first step for installation for the 2001 Buick Century? Posted by Customer
    A:
    Install the positive crankcase ventilation valve.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar PCV Valve
    Q:
    What components need to be removed from the supercharger for the 2001 Buick Park Avenue? Posted by Customer
    A:
    The PCV valve, spring, and O-ring.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar PCV Valve
    Q:
    What is the first step to replace the PCV Valve for the 2002 Buick Park Avenue? Posted by Customer
    A:
    Remove the fuel injector sight shield and the MAP sensor.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar PCV Valve
    Q:
    What is the final step after completing the installation for the 2003 Buick Park Avenue? Posted by Customer
    A:
    Reinstall the fuel injector sight shield.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar PCV Valve
    Q:
    What is the final step after installing the PCV valve for the 2004 Buick Regal? Posted by Customer
    A:
    Reinstall the fuel injector sight shield.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar PCV Valve
    Q:
    What is the first step in the installation process for the 2002 Chevrolet Camaro? Posted by Customer
    A:
    Place the O-ring and spring onto the new valve.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar PCV Valve
    Q:
    What should be done after disconnecting the vacuum hose for the 2003 Chevrolet Venture? Posted by Customer
    A:
    Remove the valve.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar PCV Valve
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM PCV Valve 25043843 Designed for Proper Fit and Performance

Original OEM GM parts deliver superior quality and meet all performance standards needed for optimal automotive operation. The authentic part identified by 25043843 PCV Valve is available in the market under the name GM PCV Valve. This genuine product has a full warranty coverage from the manufacturer available at all authorized GM dealers throughout the United States. This part 25043843 PCV Valve fits certain Chevrolet Malibu, Camaro, Equinox models, as well as GMC Terrain, Safari. Additionally, it is compatible with Cadillac Cimarron and Buick Regal, Riviera, Skylark models.
The original GM component designated by manufacturer part number 25043843 maintains top performance when functioning as the Valve, PCV; Crankcase Vent Valve unit. The component 25043843 is constructed from durable material and its dimensions span 3.1 x 1.4 x 1.3 inches while weighing 1.00 Pounds. The Direct Replacement component is ready in New condition to ensure full compatibility with your vehicle system. This component receives the designation of Crankcase; Valve, Engine Crankcase. The part 25043843 has available replacement options. GM manufacturer provides a warranty that ensures reliable operation of this product. The Shipping Policy and Return Policy pages outline complete details regarding shipping procedures and return processes.
If you want to save money in the long run on maintenance and repairs, you should choose OEM products because they're of the top level of durability. Are you on the quest of finding GM parts, our site is worth a visit. We stock an endless selection of high-quality GM components including things like ignition coils all the way through to fan shrouds and all at prices that can not be matched. You have nothing to worry about because all our OEM parts are covered with a manufacturer warranty, which guarantees superior quality and value.