How to properly service and replace the PCV Valve on a Chevrolet Impala?

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.

OEM Chevrolet Impala PCV Valve

Position Crank Ventilation Valve

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11 PCV Valves found

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Chevrolet Impala PCV Valve Part Number: 12608378
$31.84 MSRP: $59.80
You Save: $27.96 (47%)
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Product Specifications
- Other Name: Valve, Evaporator Emission Canister Purge Solenoid; Purge Valve; Purge Solenoid; Purge Control Valve
- Replaced by: 12735400
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2011 Chevrolet Impala | 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
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Chevrolet Impala PCV Valve Part Number: 12655400
$26.07 MSRP: $48.96
You Save: $22.89 (47%)
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Product Specifications
- Other Name: Valve, Engine Crankcase
- Replaces: 12637664
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2019 Chevrolet Impala | LS, LT, LTZ | 4 Cyl 2.5 L FLEX, 4 Cyl 2.5 L GAS
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Chevrolet Impala PCV Valve Part Number: 6487779
$9.88 MSRP: $17.64
You Save: $7.76 (44%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Valve, Crankcase Ventilation System; Engine Crankcase Ventilation; Crankcase Valve.
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1985 Chevrolet Impala | Base | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL, 8 Cyl 5.7 L GAS
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Chevrolet Impala 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
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2019 Chevrolet Impala | LS, LT, LTZ | 4 Cyl 2.5 L FLEX, 4 Cyl 2.5 L GAS
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Chevrolet Impala Breather Element Part Number: 6484966
$3.64 MSRP: $6.50
You Save: $2.86 (44%)
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Product Specifications
- Other Name: Breather Assembly-Air Cleaner & Silencer; Crankcase Breather; Breather; Breather, Carburetor Air Cleaner; Breather, Air Cleaner Intake
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985 Chevrolet Impala | Base | 6 Cyl 4.3 L GAS
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Chevrolet Impala PCV Valve Part Number: 8995284
Product Specifications
- Other Name: Valve, Crankcase Ventilation System; Valve, Engine Crankcase
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1985 Chevrolet Impala | Base | 6 Cyl 3.8 L GAS, 6 Cyl 4.3 L GAS
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Chevrolet Impala PCV Valve Part Number: 6487534
Product Specifications
- Other Name: Valve, Crankcase Vent; Valve, Crankcase Ventilation System; Valve, Engine Crankcase
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1985 Chevrolet Impala | Base | 6 Cyl 3.8 L GAS, 6 Cyl 4.3 L GAS
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Chevrolet Impala PCV Valve Part Number: 25095452
Product Specifications
- Other Name: Valve, PCV; Valve, Engine Crankcase
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1996 Chevrolet Impala | SS | 8 Cyl 5.7 L GAS
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Chevrolet Impala PCV Valve Part Number: 25043843
Product Specifications
- Other Name: Valve, PCV; Crankcase Vent Valve; Crankcase; Valve, Engine Crankcase
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000-2005 Chevrolet Impala | Base, LS, LS Sport, SS | 6 Cyl 3.4 L GAS, 6 Cyl 3.8 L GAS
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Chevrolet Impala PCV Valve Part Number: 25040026
Product Specifications
- Other Name: Valve, Crankcase; Valve, Crankcase Ventilation System; Valve, Engine Crankcase
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1985 Chevrolet Impala | Base | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL, 8 Cyl 5.7 L GAS
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Chevrolet Impala Breather Element Part Number: 8996724
Product Specifications
- Other Name: Breather E; Breather, Air Cleaner Intake
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984 Chevrolet Impala | Base | 6 Cyl 3.8 L GAS

Chevrolet Impala PCV Valve

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The Chevrolet Impala PCV Valve (Positive Crankcase Ventilation) is very important to emphasize the solidity and power of the legendary full-sized automobile of Chevrolet. This valve effectively recycles unburned and partially burnt gases back into the cylinder sleeve and safe ignition and elimination of oil sludge which is detrimental to the health of the engine. Applicable to numerous Chevrolet Impala generations, including the tenth one, this PCV Valve works by altering the intake manifold vacuum and controlling the gas flow to improve the vehicle's performance in various environments. Its usage is not only limited to the performance, the PCV Valve also serves the purpose of a flame arrester, which protects the crankcase from pressures, more commonly during turbocharging. Scheduling for Chevrolet Impala PCV Valve requires regular checkup as its fault can cause oil to be contaminated, leakage, and high fuel consumption which may lead to a hefty expense. The Chevrolet Impala has always been acclaimed for its mighty engine options and innovative features; therefore, the PCV Valve is an essential constituent of it. Then from the 3.5L V6 to the 3.6L V6, the Impala has better performance complemented by the proper functioning of the PCV Valve increasing both the efficiency and the safety of the vehicle. In the contemporary market of automobiles, the Chevrolet Impala PCV Valve is uniquely developed because it offers reliable services in enhancing smooth operation while the vehicle's exhaust emission is significantly reduced.

Chevrolet Impala PCV Valve Parts Questions & Experts Answers

PCV Valve
25043843
Q: How to properly service and replace the PCV Valve on a Chevrolet Impala?
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.