What is the purpose of the Evaporative Emissions Control (EVAP) system and how to replace Canister Purge Valves, Fuel Pressure Sensor and Vapor Canister on Chevrolet Impala?

The Evaporative Emissions Control (EVAP) system is a system designed to prevent the escape of fuel system vapors containing unburned hydrocarbons into the atmosphere. On hot days, fuel vapors that are trapped in the fuel tank continue to expand until they reach a certain pressure limit. The liquid fuels expelled from this tank move through the evaporative valve and canister, where they temporarily collect before being burnt up in an operating engine. There are times when the Powertrain Control Module (PCM) opens up the canister purge solenoid when suitable conditions are met like; warmed up engine, vehicle is at speed or there's a moderate to heavy load on the engine. This allows fuel vapour in the canister to be drawn into the intake manifold chamber for mixing with air/fuel mixture before it gets used in the combustion chambers. Both component and layout of EVAP system are critical including EVAP canister located above fuel tank consisting of activated carbon to hold vapours, fuel tank pressure sensor atop of fuel pump/fuel level sensor module and EVAP canister vent solenoid behind left rear wheel well fender liner which normally is opened but seals off for inspection/maintenance on EVAP system. It should be noted that with its duty cycle dependent on factors like vacuum in intake manifolds and data from sensors, vapor flow from canister to intake manifold is regulated by EVAP canister purge solenoid under PCM control. With all these advantages it must be remembered that troubleshooting an EVAP system requires specialized tools and training because these problems cannot be detected by ordinary people using normal senses, although some symptoms may be indicative of related problems. These include smelling gasoline on warm days primarily caused by loose or broken EVAP hose connections among other things. One method consists of removing the gas cap and listening for pressure release as signs of too much vaporized petrol within tanks, while professionals need full diagnostic test. The replacement of the EVAP canister purge solenoid on V6 engines requires removal of electrical connections, lines, and a mounting bolt for installation or reinstallation procedures since it is lodged at the left front part of the intake manifold. On the other hand, in case of V8 engines, you have to remove an engine cover to access the EVAP canister purge valve that is located at the top of rear intake manifold portion prior to disconnecting electrical connector and lines for removal and installation purposes. The EVAP canister vent solenoid located behind the left rear wheel well can be accessed by jacking up and securing the vehicle; disconnecting all electrical connectors, hoses then slide solenoid upward to remove or reinstall it. Finally, raising the vehicle disconnecting labeled hoses with electrical connectors then detaching it from its mounting bracket completes EVAP canister situated on top fuel tank's installation process. Above all, fuel tank pressure sensor atop fuel pump/fuel level sensor module mounting flange needs a raised motorcar body coupled with removal of fuel tank before eventually dismantling and reinstalling sensor by means of undoing electric plug.

Genuine Chevrolet Impala Canister Purge Valves

Fuel Tank Evaporator Purge Control Valve

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20 Canister Purge Valves found

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Chevrolet Impala Valve,Evap Emission Canister Purge Solenoid
Part Number: 1997278
$37.13 MSRP: $69.54
You Save: $32.41 (47%)
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Product Specifications
- Other Name: VALVE, Fuel Tank Evaporator/Purge Control
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000-2005 Chevrolet Impala | IMPALA, LS, LT, POLICE CAR, SS | 6 Cyl 3.8L
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Chevrolet Impala Valve,Evap Emission Canister Purge Solenoid
Part Number: 1997201
$35.36 MSRP: $66.21
You Save: $30.85 (47%)
ADD TO CART
Product Specifications
- Other Name: VALVE, Fuel Tank Evaporator/Purge Control
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1996 Chevrolet Impala | CLASSIC 4 DOOR, CLASSIC STATION WAGON, LS 4 DOOR | 8 Cyl 5.7L
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Chevrolet Impala Valve Assembly, Evap Emis Cnstr Purge Sol
Part Number: 12690512
$27.52 MSRP: $51.92
You Save: $24.40 (47%)
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Product Specifications
- Other Name: Purge Control Valve, Purge Solenoid, Purge Valve
- Replaced by: 12737252
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2012-2020 Chevrolet Impala | LS, LS 4 DOOR NOTCHBACK, LT 4 DOOR NOTCHBACK, LTZ, LTZ 4 DOOR NOTCHBACK | 6 Cyl 3.6L
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Chevrolet Impala Evap Emission Canister Purge Solenoid Valve Assembly
Part Number: 12597567
$33.14 MSRP: $67.60
You Save: $34.46 (51%)
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Product Specifications
- Other Name: VALVE, Fuel Tank Evaporator/Purge Control
- Replaced by: 12735397
- Replaces: 12606684, 12597566, 12570469, 12597341
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014 Chevrolet Impala | LS 4 DOOR NOTCHBACK, LT 4 DOOR NOTCHBACK | 4 Cyl 2.4L
- 2006-2009 Chevrolet Impala | LS, LS POLICE CAR, LT, LT 3.5, LTZ, SS | 8 Cyl 5.3L
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Chevrolet Impala Evap Emission Canister Purge Solenoid Valve Assembly
Part Number: 12632174
$33.94 MSRP: $64.04
You Save: $30.10 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: VALVE, Fuel Tank Evaporator/Purge Control; Purge Control Valve, Purge Solenoid, Purge Valve
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2019 Chevrolet Impala | LS 4 DOOR NOTCHBACK, LT 4 DOOR NOTCHBACK, LTZ 4 DOOR NOTCHBACK | 4 Cyl 2.5L
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Chevrolet Impala Evap Emission Canister Solenoid Assembly
Part Number: 20941985
$26.29 MSRP: $49.60
You Save: $23.31 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: SOLENOID, Fuel Tank Evaporator/Purge Control
- Replaces: 15208329, 19133429, 25932569
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000-2006 Chevrolet Impala | IMPALA, LS, LT, POLICE CAR, SS | 6 Cyl 3.4L, 6 Cyl 3.5L, 6 Cyl 3.5L Flex, 6 Cyl 3.8L, 6 Cyl 3.9L, 8 Cyl 5.3L
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Chevrolet Impala Evap Emission Canister Solenoid Assembly
Part Number: 13575703
$28.99 MSRP: $54.70
You Save: $25.71 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: SOLENOID, Fuel Tank Evaporator/Purge Control
- Replaces: 10293954, 10337458, 20761332
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000-2001 Chevrolet Impala | IMPALA, LS, LUMINA, SS | 6 Cyl 3.4L, 6 Cyl 3.8L
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Chevrolet Impala Evap Emission Canister Solenoid Assembly
Part Number: 20952523
$40.93 MSRP: $83.48
You Save: $42.55 (51%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: SOLENOID, Fuel Tank Evaporator/Purge Control; Solenoid Valve, Vent Control Solenoid
- Replaces: 15839554, 25932568
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2016 Chevrolet Impala | LS, LS POLICE CAR, LT, LT 3.5, LTZ, SS | 6 Cyl 3.5L, 6 Cyl 3.5L Flex, 6 Cyl 3.6L, 6 Cyl 3.9L, 6 Cyl 3.9L Flex, 8 Cyl 5.3L
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Chevrolet Impala SOLENOID ASM-EVAP EMIS CNSTR
Part Number: 85123399
$42.51 MSRP: $80.20
You Save: $37.69 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Replaces: 84802774, 84065747, 22740537
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2020 Chevrolet Impala | LS 4 DOOR NOTCHBACK, LT 4 DOOR NOTCHBACK, LTZ 4 DOOR NOTCHBACK | 4 Cyl 2.4L, 4 Cyl 2.5L, 6 Cyl 3.6L
View related parts
Chevrolet Impala Evap Emission Canister Purge Solenoid Valve Assembly
Part Number: 12592015
$31.69 MSRP: $59.80
You Save: $28.11 (48%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: VALVE, Fuel Tank Evaporator/Purge Control
- Replaced by: 12735400
- Replaces: 12608378
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2011 Chevrolet Impala | LS, LS POLICE CAR, LT, LT 3.5, LTZ, SS | 6 Cyl 3.5L, 6 Cyl 3.5L Flex, 6 Cyl 3.9L, 6 Cyl 3.9L Flex
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Chevrolet Impala Evap Emission Canister Purge Solenoid Valve Assembly
Part Number: 12638819
$30.13 MSRP: $56.84
You Save: $26.71 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: VALVE, Fuel Tank Evaporator/Purge Control; Purge Control Valve, Purge Valve, Valve Assembly
- Replaced by: 12735404
- Replaces: 12617376
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014 Chevrolet Impala | LS 4 DOOR NOTCHBACK, LT 4 DOOR NOTCHBACK | 4 Cyl 2.4L
View related parts
Chevrolet Impala Evap Emission Canister Purge Solenoid Valve Assembly
Part Number: 1997297
Product Specifications
- Other Name: VALVE, Fuel Tank Evaporator/Purge Control
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000-2005 Chevrolet Impala | IMPALA, LS, LT, LUMINA, POLICE CAR, SS | 6 Cyl 3.4L
View related parts
Chevrolet Impala Valve Assembly, Fuel Vapor Pressure Control
Part Number: 17089068
Product Specifications
- Other Name: VALVE, Fuel Tank Evaporator/Purge Control; Fuel Tank Vent Valve, Pressure Valve, Vapor Valve
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1996 Chevrolet Impala | CLASSIC 4 DOOR, CLASSIC STATION WAGON, LS 4 DOOR | 8 Cyl 5.7L
View related parts
Chevrolet Impala Valve Asm,Evap Emission Pressure Control
Part Number: 17085891
Product Specifications
- Other Name: VALVE, Fuel Tank Evaporator/Purge Control
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1982-1985 Chevrolet Impala | 4 DOOR, CLASSIC 2 DOOR, CLASSIC 4 DOOR, CLASSIC STATION WAGON, STATION WAGON | 6 Cyl 3.8L, 8 Cyl 4.4L, 8 Cyl 5.0L
View related parts
Chevrolet Impala Valve Asm,Evap Emission Canister Control
Part Number: 17085918
Product Specifications
- Other Name: VALVE, Fuel Tank Evaporator/Purge Control
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984 Chevrolet Impala | 4 DOOR, CLASSIC 2 DOOR, CLASSIC 4 DOOR, CLASSIC STATION WAGON | 6 Cyl 3.8L
- 1982 Chevrolet Impala | 4 DOOR, CLASSIC 2 DOOR, CLASSIC 4 DOOR, CLASSIC STATION WAGON, STATION WAGON | 6 Cyl 3.8L
View related parts
Chevrolet Impala Valve Asm,Evap Emission Canister Control
Part Number: 17085928
Product Specifications
- Other Name: VALVE, Fuel Tank Evaporator/Purge Control
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1983 Chevrolet Impala | 4 DOOR, CLASSIC 2 DOOR, CLASSIC 4 DOOR, CLASSIC STATION WAGON | 6 Cyl 3.8L
View related parts
Chevrolet Impala Valve Asm,Evap Emission Canister Control
Part Number: 17085892
Product Specifications
- Other Name: VALVE, Fuel Tank Evaporator/Purge Control
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1982-1984 Chevrolet Impala | 4 DOOR, CLASSIC 2 DOOR, CLASSIC 4 DOOR, CLASSIC STATION WAGON, STATION WAGON | 6 Cyl 3.8L
View related parts
Chevrolet Impala Valve Assembly, Check
Part Number: 497853
Product Specifications
- Other Name: VALVE; Check Valve, Control Valve, Vacuum Valve
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1985 Chevrolet Impala | 4 DOOR, CLASSIC 2 DOOR, CLASSIC 4 DOOR, CLASSIC STATION WAGON | 6 Cyl 3.8L, 8 Cyl 5.0L
View related parts
Chevrolet Impala Valve Assembly, Fuel Vapor Canister Purge
Part Number: 1997204
Product Specifications
- Other Name: VALVE, Fuel Tank Evaporator/Purge Control
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1985 Chevrolet Impala | 4 DOOR, CLASSIC 2 DOOR, CLASSIC 4 DOOR, CLASSIC STATION WAGON | 8 Cyl 5.0L
View related parts
Chevrolet Impala Valve Assembly, Fuel Vapor Pressure Control
Part Number: 17087240
Product Specifications
- Other Name: VALVE, Fuel Tank Evaporator/Purge Control; Pressure Valve, Purge Solenoid, Valve, Vapor Valve
- Replaces: 17087178
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1985 Chevrolet Impala | 4 DOOR, CLASSIC 2 DOOR, CLASSIC 4 DOOR, CLASSIC STATION WAGON | 8 Cyl 5.0L

Chevrolet Impala Canister Purge Valves

Chevrolet Impala Canister Purge Valves act as a gateway, allowing trapped fuel vapors to escape from the charcoal canister and enter the engine, so gases burn rather than pollute the air. In each system, when manifold vacuum rises, the valve opens. Fresh air enters through activated charcoal that has absorbed fuel vapor, and this air-fuel vapor mixture is fed to the combustion chambers. Prior to the early 1970s, vehicles built on classic models had fuel tank vents that were open to the atmosphere. However, with the introduction of tougher regulations, Chevrolet began using sealed EVAP hardware on its vehicles, and as a result, the Canister Purge Valves became essential in order to control HC. The modern OBD II editions of the Impala include electronic monitoring. When the Engine Control Module instructs the Canister Purge Valves to open while at the same time sealing the canister vent, a pressure sensor verifies that the system holds vacuum. If it does not, it flags a leak. Some versions feature a valve with a replaceable filter inside the canister to keep charcoal dust out of the delicate passages and increase the life of the Canister Purge Valves. Over the years, the actuation of Canister Purge Valves has changed from vacuum-controlled units to computer-controlled solenoids. Moreover, this change allows later Chevrolet Impala engines to run cleaner and more efficiently.

Each OEM Chevrolet Impala Canister Purge Valves we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

Chevrolet Impala Canister Purge Valves Parts Questions & Experts Answers

Evap Emission Canister Solenoid Assembly
20952523
Q: What is the purpose of the Evaporative Emissions Control (EVAP) system and how to replace Canister Purge Valves, Fuel Pressure Sensor and Vapor Canister on Chevrolet Impala?
A:
The Evaporative Emissions Control (EVAP) system is a system designed to prevent the escape of fuel system vapors containing unburned hydrocarbons into the atmosphere. On hot days, fuel vapors that are trapped in the fuel tank continue to expand until they reach a certain pressure limit. The liquid fuels expelled from this tank move through the evaporative valve and canister, where they temporarily collect before being burnt up in an operating engine. There are times when the Powertrain Control Module (PCM) opens up the canister purge solenoid when suitable conditions are met like; warmed up engine, vehicle is at speed or there's a moderate to heavy load on the engine. This allows fuel vapour in the canister to be drawn into the intake manifold chamber for mixing with air/fuel mixture before it gets used in the combustion chambers. Both component and layout of EVAP system are critical including EVAP canister located above fuel tank consisting of activated carbon to hold vapours, fuel tank pressure sensor atop of fuel pump/fuel level sensor module and EVAP canister vent solenoid behind left rear wheel well fender liner which normally is opened but seals off for inspection/maintenance on EVAP system. It should be noted that with its duty cycle dependent on factors like vacuum in intake manifolds and data from sensors, vapor flow from canister to intake manifold is regulated by EVAP canister purge solenoid under PCM control. With all these advantages it must be remembered that troubleshooting an EVAP system requires specialized tools and training because these problems cannot be detected by ordinary people using normal senses, although some symptoms may be indicative of related problems. These include smelling gasoline on warm days primarily caused by loose or broken EVAP hose connections among other things. One method consists of removing the gas cap and listening for pressure release as signs of too much vaporized petrol within tanks, while professionals need full diagnostic test. The replacement of the EVAP canister purge solenoid on V6 engines requires removal of electrical connections, lines, and a mounting bolt for installation or reinstallation procedures since it is lodged at the left front part of the intake manifold. On the other hand, in case of V8 engines, you have to remove an engine cover to access the EVAP canister purge valve that is located at the top of rear intake manifold portion prior to disconnecting electrical connector and lines for removal and installation purposes. The EVAP canister vent solenoid located behind the left rear wheel well can be accessed by jacking up and securing the vehicle; disconnecting all electrical connectors, hoses then slide solenoid upward to remove or reinstall it. Finally, raising the vehicle disconnecting labeled hoses with electrical connectors then detaching it from its mounting bracket completes EVAP canister situated on top fuel tank's installation process. Above all, fuel tank pressure sensor atop fuel pump/fuel level sensor module mounting flange needs a raised motorcar body coupled with removal of fuel tank before eventually dismantling and reinstalling sensor by means of undoing electric plug.