What is the purpose of the Positive Crankcase Ventilation (PCV) system and PCV Valve on Chevrolet Express?

To reduce hydrocarbon emissions, the Positive Crankcase Ventilation (PCV) system scavenges crankcase vapors rich in unburned hydrocarbons. Rather than using intake manifold vacuum for this purpose, as it happens in the conventional PCV systems; however, the system in these vehicles does not. It is done by connecting a fresh air inlet hose from the air intake duct or resonator box straight to valve cover, which allows pressure equalization by fresh air. There is another hose that draws in crankcase vapors by connecting the left valve cover to the intake manifold. Based on intake vacuum levels, PCV valve controls vapor flow into intake manifold. The engine model determines how a particular PCV system is configured. When servicing an engine, the hoses of its PCV system should be checked for any damage or clogs as well as leaks. Rough idling, stalling, high or low idle speeds, oil leaks and sludge buildup may all occur due to blocked or leaking hoses. Vacuum presence in the PCV hose can be tested very simply checking vacuum gauge readings at different stages of running and diagnosing such problems as leaks blockages or excessive crankcase pressure which influence PCV system work.

OEM Chevrolet PCV Valve

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70 PCV Valves found

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Chevrolet PCV Valve Part Number: 25193675
$12.82 MSRP: $24.08
You Save: $11.26 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve, Engine Crankcase
- Replaces: 96985393
Fits the following Chevrolet Models:
- Spark | 2013-2015 | LS, LT | 4 Cyl 1.2 L GAS
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Chevrolet PCV Valve Part Number: 12655189
$22.21 MSRP: $41.70
You Save: $19.49 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve, Engine Crankcase
- Replaces: 12650732
Fits the following Chevrolet Models:
- Camaro | 2016-2020 | LS, LT | 4 Cyl 2.0 L GAS
- Equinox | 2018-2020 | LT, Premier | 4 Cyl 2.0 L GAS
- Malibu | 2016-2020, 2013 | LT, LTZ, Premier | 4 Cyl 2.0 L GAS
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Chevrolet PCV Valve Part Number: 12655399
$19.99 MSRP: $37.54
You Save: $17.55 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Valve, Engine Crankcase
- Replaces: 12637663
Fits the following Chevrolet Models:
- Colorado | 2015-2022 | Base, LT, WT, Z71 | 4 Cyl 2.5 L GAS
- Impala | 2014-2019 | LS, LT, LTZ | 4 Cyl 2.5 L FLEX, 4 Cyl 2.5 L GAS
- Malibu | 2013-2015 | LS, LT, LTZ | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Chevrolet PCV Valve Part Number: 19303069
$3.94 MSRP: $7.04
You Save: $3.10 (45%)
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Product Specifications
- Other Name: Valve Assembly, PCV; Crankcase Vent Valve; Valve, Engine Crankcase Ventilation; Valve, Engine Crankcase
- Replaces: 06487532, 6487532
Fits the following Chevrolet Models:
- Astro | 1996-2005 | Base, LS, LT | 6 Cyl 4.3 L GAS
- Blazer | 1997-2004 | Base, LS, LT, Trailblazer, Xtreme, ZR2 | 6 Cyl 4.3 L GAS
- C1500 | 1996-1999 | Base, Cheyenne, LS, Silverado, WT | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
- C1500 Suburban | 1996-1999 | Base, LS, LT | 8 Cyl 5.7 L GAS
- C2500 | 1996-2000 | Base, Cheyenne, LS, Silverado, WT | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS
- C2500 Suburban | 1996-1999 | Base, LS, LT | 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS
- C3500 | 1996-2000 | Base, Cheyenne, LS, Silverado | 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS
- Express 1500 | 2003-2006 | Base, LS, LT | 6 Cyl 4.3 L GAS
- Express 2500 | 1996-2006 | Base, LS | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L BI-FUEL, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS
- Express 3500 | 1996-2002 | Base, LS | 8 Cyl 5.7 L BI-FUEL, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS
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Chevrolet PCV Valve Part Number: 12608378
$31.84 MSRP: $59.80
You Save: $27.96 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve, Evaporator Emission Canister Purge Solenoid; Purge Valve; Purge Solenoid; Purge Control Valve
- Replaced by: 12735400
Fits the following Chevrolet Models:
- Cobalt | 2008-2010 | SS | 4 Cyl 2.0 L GAS
- Express 1500 | 2008-2014 | Base | 6 Cyl 4.3 L GAS
- HHR | 2008-2010 | SS, SS Panel | 4 Cyl 2.0 L GAS
- Impala | 2006-2011 | 50th Anniversary Edition, LS, LT, LTZ, Police | 6 Cyl 3.5 L FLEX, 6 Cyl 3.5 L GAS, 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS
- Malibu | 2006-2010 | Classic LS, Classic LT, LS, LT, LTZ, Maxx LS, Maxx LT, Maxx LTZ, Maxx SS, SS | 6 Cyl 3.5 L FLEX, 6 Cyl 3.5 L GAS, 6 Cyl 3.9 L GAS
- Monte Carlo | 2006-2007 | LS, LT, LTZ | 6 Cyl 3.5 L FLEX, 6 Cyl 3.5 L GAS, 6 Cyl 3.9 L GAS
- Silverado 1500 | 2007-2013 | LS, WT | 6 Cyl 4.3 L GAS
- Uplander | 2006-2008 | Base, LS, LT | 6 Cyl 3.5 L GAS, 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS
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Chevrolet PCV Valve Part Number: 12665644
$14.32 MSRP: $25.58
You Save: $11.26 (45%)
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Product Specifications
- Other Name: Valve, Engine Crankcase
Fits the following Chevrolet Models:
- Cruze | 2016-2019 | L, LS, LT, Premier | 4 Cyl 1.4 L GAS
- Equinox | 2018-2023 | L, LS, LT, Premier, RS | 4 Cyl 1.5 L GAS
- Malibu | 2016-2023 | L, LS, LT, RS | 4 Cyl 1.5 L GAS
- Spark | 2016-2021 | ACTIV, LS, LT | 4 Cyl 1.4 L GAS
- Trax | 2021-2022 | LS, LT | 4 Cyl 1.4 L GAS
- Volt | 2016-2019 | LT, Premier | 4 Cyl 1.5 L PLUG-IN HYBRID EV-GAS (PHEV)
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Chevrolet PCV Valve Part Number: 12721691
$6.00 MSRP: $10.86
You Save: $4.86 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve-PCV; Valve, Engine Crankcase; Seal, Engine Crankcase
- Replaces: 55509665, 55514392, 55486664
Fits the following Chevrolet Models:
- Blazer | 2020-2024 | LT, Premier, RS | 4 Cyl 2.0 L GAS
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Chevrolet PCV Valve Part Number: 12714149
$18.89 MSRP: $35.48
You Save: $16.59 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Valve, Engine Crankcase
- Replaces: 12673554, 12666420
Fits the following Chevrolet Models:
- Camaro | 2016-2022 | LS, LT | 6 Cyl 3.6 L GAS
- Colorado | 2015-2022 | LT, WT, Z71, ZR2 | 6 Cyl 3.6 L GAS
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Chevrolet PCV Valve Part Number: 12637666
$20.25 MSRP: $38.02
You Save: $17.77 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve, Engine Crankcase
Fits the following Chevrolet Models:
- Cruze | 2016-2019 | L, LS, LT, Premier | 4 Cyl 1.4 L GAS
- Malibu | 2016-2023 | L, LS, LT, RS | 4 Cyl 1.5 L GAS
- Trax | 2021-2022 | LS, LT | 4 Cyl 1.4 L GAS
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Chevrolet PCV Valve Part Number: 25042462
$96.47 MSRP: $174.60
You Save: $78.13 (45%)
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Product Specifications
- Other Name: Valve, Crankcase; Valve, Engine Crankcase
Fits the following Chevrolet Models:
- C10 | 1984-1985 | Custom, Scottsdale, Silverado | 8 Cyl 6.2 L DIESEL
- C10 Suburban | 1984-1985 | Custom, Scottsdale, Silverado | 8 Cyl 6.2 L DIESEL
- C20 | 1984-1985 | Custom, Scottsdale, Silverado | 8 Cyl 6.2 L DIESEL
- C20 Suburban | 1984-1985 | Custom, Scottsdale, Silverado | 8 Cyl 6.2 L DIESEL
- C30 | 1984-1985 | Custom, Scottsdale, Silverado | 8 Cyl 6.2 L DIESEL
- G20 | 1984-1985 | Beauville, Bonaventure, Chevy Van, Sportvan | 8 Cyl 6.2 L DIESEL
- G30 | 1984-1985 | Beauville, Bonaventure, Chevy Van, Hi-Cube, Sportvan | 8 Cyl 6.2 L DIESEL
- K10 | 1984-1985 | Custom, Scottsdale, Silverado | 8 Cyl 6.2 L DIESEL
- K10 Suburban | 1984-1985 | Custom, Scottsdale, Silverado | 8 Cyl 6.2 L DIESEL
- K20 | 1984-1985 | Custom, Scottsdale, Silverado | 8 Cyl 6.2 L DIESEL
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Chevrolet PCV Valve Part Number: 12665166
$15.23 MSRP: $28.60
You Save: $13.37 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Valve, Engine Crankcase
Fits the following Chevrolet Models:
- Camaro | 2016-2022 | LS, LT | 4 Cyl 2.0 L GAS
- Equinox | 2018-2020 | LT, Premier | 4 Cyl 2.0 L GAS
- Malibu | 2016-2022 | LT, Premier | 4 Cyl 2.0 L GAS
- Traverse | 2018-2019 | RS | 4 Cyl 2.0 L GAS
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Chevrolet PCV Valve Part Number: 12665167
$12.79 MSRP: $24.02
You Save: $11.23 (47%)
ADD TO CART
Product Specifications
- Other Name: Valve, Engine Crankcase
Fits the following Chevrolet Models:
- Camaro | 2016-2022 | LS, LT | 4 Cyl 2.0 L GAS
- Equinox | 2018-2020 | LT, Premier | 4 Cyl 2.0 L GAS
- Malibu | 2016-2022 | LT, Premier | 4 Cyl 2.0 L GAS
- Traverse | 2018-2019 | RS | 4 Cyl 2.0 L GAS
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Chevrolet PCV Valve Part Number: 19316056
$17.30 MSRP: $31.32
You Save: $14.02 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve, PCV; Crankcase Vent Valve; Valve, Engine Crankcase
Fits the following Chevrolet Models:
- City Express | 2015-2018 | LS, LT | 4 Cyl 2.0 L GAS
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Chevrolet PCV Valve Part Number: 12691877
$9.18 MSRP: $17.24
You Save: $8.06 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Valve, Engine Crankcase
- Replaces: 12630887
Fits the following Chevrolet Models:
- Express 2500 | 2018-2023 | Base, LS, LT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS
- Express 3500 | 2018-2023 | Base, LS, LT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS
- Silverado 1500 | 2014-2021 | Custom, Custom Trail Boss, LS, LT, WT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS
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Chevrolet PCV Valve Part Number: 19431592
$25.03 MSRP: $45.30
You Save: $20.27 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve Kit, PCV; Valve Kit, Engine Crankcase
- Replaces: 89017274, 17113515, 89017684
Fits the following Chevrolet Models:
- Lumina | 1998-1999 | Base, LS, LTZ | 6 Cyl 3.8 L GAS
- Monte Carlo | 1998-1999 | LS, Z34 | 6 Cyl 3.8 L GAS
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Chevrolet PCV Valve Part Number: 55506846
$14.71 MSRP: $26.62
You Save: $11.91 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve, Engine Crankcase
Fits the following Chevrolet Models:
- Spark | 2016-2021 | ACTIV, LS, LT | 4 Cyl 1.4 L GAS
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Chevrolet PCV Valve Part Number: 12641875
$10.82 MSRP: $19.58
You Save: $8.76 (45%)
ADD TO CART
Product Specifications
- Other Name: Orifice-PCV Valve; Orifice, Engine Crankcase
Fits the following Chevrolet Models:
- Equinox | 2018-2023 | L, LS, LT, Premier, RS | 4 Cyl 1.5 L GAS
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Chevrolet PCV Valve Part Number: 12696101
$7.05 MSRP: $12.76
You Save: $5.71 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve, Engine Crankcase; Crankcase Vent Valve
- Replaced by: 12706638
Fits the following Chevrolet Models:
- Trailblazer | 2021-2022 | ACTIV, L, LS, LT, RS | 3 Cyl 1.2 L GAS, 3 Cyl 1.3 L GAS
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Chevrolet PCV Valve Part Number: 12721582
$11.93 MSRP: $21.60
You Save: $9.67 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Valve, Engine Crankcase
- Replaces: 12705103, 12664437, 12694767
Fits the following Chevrolet Models:
- Colorado | 2023 | LT, Trail Boss, WT, Z71, ZR2 | 4 Cyl 2.7 L GAS
- Silverado 1500 | 2019-2023 | Custom, Custom Trail Boss, LT, LT Trail Boss, RST, WT | 4 Cyl 2.7 L GAS
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Chevrolet PCV Valve Part Number: 25097699
$85.69 MSRP: $153.02
You Save: $67.33 (44%)
Product Specifications
- Other Name: Valve, Engine Crankcase
Fits the following Chevrolet Models:
- C1500 | 1989-1993 | Cheyenne, Scottsdale, Silverado, WT | 8 Cyl 6.2 L DIESEL
- C2500 | 1989-1993 | Cheyenne, Scottsdale, Silverado | 8 Cyl 6.2 L DIESEL
- C3500 | 1989-1993 | Cheyenne, Scottsdale, Silverado | 8 Cyl 6.2 L DIESEL
- Express 2500 | 1996-2002 | Base, LS | 8 Cyl 6.5 L DIESEL
- Express 3500 | 1996-2002 | Base, LS | 8 Cyl 6.5 L DIESEL
- G20 | 1992-1995 | Beauville, Chevy Van, Sportvan | 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL
- G30 | 1992-1996 | Beauville, Chevy Van, Hi-Cube, Sportvan | 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL
- K1500 | 1989-1993 | Cheyenne, Scottsdale, Silverado, Sport, WT | 8 Cyl 6.2 L DIESEL
- K2500 | 1989-1993 | Cheyenne, Scottsdale, Silverado | 8 Cyl 6.2 L DIESEL
- K3500 | 1989-1993 | Cheyenne, Scottsdale, Silverado | 8 Cyl 6.2 L DIESEL
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Chevrolet PCV Valve

Choose OEM PCV Valve, you're making the optimal decision for superior quality and perfect performance. You can feel confident because each component goes through stringent quality checks. Every part is carefully built to comply with Chevrolet's factory specifications. You'll enjoy a smooth, worry-free installation that fits just right. At ChevyPartsDeal.com, you'll find it easy to get top-quality OEM Chevrolet PCV Valve. You can shop at highly competitive prices and protect your budget. All our genuine Chevrolet parts include a dependable manufacturer's warranty. You'll also appreciate our straightforward return policy and swift delivery services for extra convenience.

Chevrolet PCV Valve ensures that the gases of the crankcase are contained, extending engine life and reducing pollution. Over the hundred years Chevrolet has been doing all it can to show there is still a way to have practical performance and yet have a good drive. Chevy has machines capable of hauling, sprinting and cruising, in small packages to full-size trucks. The drivers like the way Chevy balances the punch engine with the cabin that remains straightforward rather than showy gimmick. The long journeys will be less tiresome as Chevy technology such as Super Cruise reduces fatigue and maintains eye contact. The badge represents cars that shake off everyday abuse and still appear dashing in the drive. Any Chevrolet gets off the line with hopes of reliability that will save its owners unexpected expenses in the long run. The PCV Valve routes blow-by gases in the crankcase to the intake manifold under vacuum to avoid sludging and to stabilize air-fuel ratio at idle and increase when RPM or load spikes force more gases past the rings. It is also applied as a flame arrestor preventing the ignition of backfires that can spread oil mist as well as to introduce a touch of compression that enhances throttle response. Since its valve spring tends to be gummed up with time, frequent tests will make sure that no blockage is experienced and the emission level remains steady. A worn PCV Valve rats fuel economy is reduced and water combines with oil to make damaging acids.

Chevrolet PCV Valve Parts and Q&A

PCV Valve
19303069
Q: What is the purpose of the Positive Crankcase Ventilation (PCV) system and PCV Valve on Chevrolet Express?
A:
To reduce hydrocarbon emissions, the Positive Crankcase Ventilation (PCV) system scavenges crankcase vapors rich in unburned hydrocarbons. Rather than using intake manifold vacuum for this purpose, as it happens in the conventional PCV systems; however, the system in these vehicles does not. It is done by connecting a fresh air inlet hose from the air intake duct or resonator box straight to valve cover, which allows pressure equalization by fresh air. There is another hose that draws in crankcase vapors by connecting the left valve cover to the intake manifold. Based on intake vacuum levels, PCV valve controls vapor flow into intake manifold. The engine model determines how a particular PCV system is configured. When servicing an engine, the hoses of its PCV system should be checked for any damage or clogs as well as leaks. Rough idling, stalling, high or low idle speeds, oil leaks and sludge buildup may all occur due to blocked or leaking hoses. Vacuum presence in the PCV hose can be tested very simply checking vacuum gauge readings at different stages of running and diagnosing such problems as leaks blockages or excessive crankcase pressure which influence PCV system work.